2007-2013 Cadillac CTS DTS SRX Key Fob OUC6000066 for Keylessbest

2007–2013 Cadillac CTS DTS SRX Key Fob OUC6000066 Overview

If you lost your original Cadillac remote, cracked the case, or your buttons only work when they “feel like it,” this Cadillac OUC6000066 key fob is built to be a direct, locksmith-programmable replacement—without dealer pricing.

Who This Cadillac Key Fob Is For

This 5‑button, 315MHz non‑proximity remote is designed specifically for:

• 2008–2013 Cadillac CTS (non‑prox)
• 2008–2011 Cadillac DTS (non‑prox)
• 2007–2009 Cadillac SRX (non‑prox)

If you still insert a metal key into the ignition (no push‑to‑start button) and your original remote shows FCC ID OUC6000066, this is the style you need.

What Makes It Different From Generic Remotes

Most cheap “universal” remotes don’t actually match GM specs. This Cadillac 5‑button remote 315MHz uses:

• Correct 315MHz GM frequency
• Built‑in ID46 Philips Crypto transponder chip
• Proper Lock, Unlock, Trunk, Panic, Remote Start layout

That means your range, response, and reliability will match what you expect from an OEM‑quality Cadillac keyless entry remote.

Why FCC ID OUC6000066 and Non‑Proximity Matter

For these Cadillacs, compatibility comes down to two things:

• FCC ID: Must read OUC6000066 on your old remote sticker
• System type: Must be non‑proximity (standard key), not a smart key / push‑to‑start

If your FCC ID or system type is different, the car simply will not accept programming—no matter who tries. Matching FCC ID OUC6000066 and non‑proximity is the only way to be sure this remote will work.

How Our Remote Compares to Dealer OEM Fobs

You’re getting an OEM‑level complete remote, not a shell:

• Same function and performance as dealer units
• Locksmith programmable with standard GM equipment
• Cross‑references OEM part numbers 20998256, 20998254, 20998255, 5923880, 5923879

The real difference is price. You get dealer‑style quality and feel without paying dealer markup.

Common Problems This Cadillac Remote Solves

This Keylessbest Cadillac replacement remote is the fix if:

• You lost your only key fob
• Your remote case is cracked or buttons are worn smooth
• The fob only works up close or intermittently
• Your old remote start key fob stopped triggering the engine
• You want a reliable spare for emergencies or resale value

If your CTS, DTS, or SRX matches the years and uses a non‑proximity system with FCC ID OUC6000066, this is the correct complete replacement remote to get you back on the road.

Key Fob Compatibility Guide for Cadillac CTS, DTS, SRX (OUC6000066)

Compatible Cadillac CTS (2008–2013 Non-Proximity)

This Cadillac OUC6000066 key fob fits:

• 2008–2013 Cadillac CTS
• Sedan, Wagon, and Coupe models that use a standard key in the ignition (non-proximity)
• Works on vehicles originally equipped with a 5‑button 315MHz remote with Remote Start

If your CTS has push-to-start with no key turning in the column, this is not the right remote.

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Compatible Cadillac DTS (2008–2011 Non-Proximity)

This 5-button 315MHz remote fits:

• 2008–2011 Cadillac DTS
• Non-proximity systems where you insert and turn a metal key
• Vehicles that came factory with Remote Start + Trunk + Panic on the fob

If your DTS uses a smart key you leave in your pocket to start the car, this OUC6000066 will not program.

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Compatible Cadillac SRX (2007–2009 Non-Proximity)

Designed for:

• 2007–2009 Cadillac SRX
• Non-proximity ignition (standard key, no push-button start)
• Original remote matches the same 5-button layout and 315MHz frequency

If your SRX has a proximity fob or different button layout, you need a different style remote.

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How to Confirm Your FCC ID Is OUC6000066

To avoid returns and headaches, match your FCC ID:

1. Remove your old key fob battery cover.
2. Look at the back of the circuit board or inside the shell.
3. You should see: FCC ID: OUC6000066.

If the FCC ID shows something like KOBGT04A, HYQ, or any code other than OUC6000066, this remote is not compatible.

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How to Check Non-Proximity vs Smart Key

You’re non-proximity (this key fob fits) if:

• You physically insert and turn a metal key in the ignition.
• There is no push-to-start button on the dash.
• The car will not start if the key is not in the ignition cylinder.

You have a proximity/smart key (this will not fit) if:

• You have a Start/Stop button on the dash.
• The car starts with the fob in your pocket or bag.
• There’s no traditional key turn in the steering column.

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When This Cadillac Key Fob Will NOT Work

This Keylessbest Cadillac OUC6000066 remote will not work if:

• Your Cadillac CTS, DTS, or SRX has push-to-start / proximity or smart key system.
• Your original remote has a different FCC ID (not OUC6000066).
• Your original remote is a different frequency (not 315MHz).
• You are trying to use it on model years outside:
  • CTS: 2008–2013
  • DTS: 2008–2011
  • SRX: 2007–2009

If you’re unsure, snap clear photos of your old key fob front and back and send them to our support team—we’ll confirm fitment before you buy so you don’t waste time or money.

Cadillac Key Fob OUC6000066 Features & Specs

5-Button Layout (All Functions in One Remote)

This Cadillac OUC6000066 key fob has a clean 5-button layout:

• Lock – Secures all doors with one press
• Unlock – Unlocks driver or all doors (depends on your settings)
• Trunk – Pops the trunk remotely
• Remote Start – Starts the engine from a distance (vehicle must be equipped)
• Panic – Sounds the horn and flashes lights in emergencies

You’re getting the same core functions as the original factory Cadillac 5-button remote.

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Frequency & Chip Details

This is built to match OEM electronic specs, not a “universal” guess:

If your original Cadillac remote shows FCC ID OUC6000066 and uses 315MHz, this is the right style of remote.

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OEM Cross-Reference (GM & Cadillac Part Numbers)

We match the electronics and layout used by GM. This remote replaces these OEM part numbers:

• GM / Cadillac PNs:
  • 20998256
  • 20998254
  • 20998255
  • 5923880
  • 5923879

If your old fob or dealer quote shows any of these numbers, this is the compatible replacement key fob.

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Battery Type, Life & Replacement

• Battery Type: CR2032 lithium coin cell
• Typical Lifespan: About 2–3 years with normal use
• Replacement:
  • Open the case carefully with a small flat tool
  • Swap in a fresh CR2032 (positive side up)
  • Clip the case back together firmly

You don’t need any special tools or dealer help just to change the battery.

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Emergency Key Blade Details

Every remote includes an uncut metal emergency key blade:

• Material: Solid metal, designed to handle daily use
• Fitment: Slides into your door and ignition (once cut) just like OEM
• Cutting: Any competent U.S. automotive locksmith can cut it to your VIN or existing key

Even if you mainly use remote start, you still want this blade working for dead-battery or emergency situations.

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Build Quality & Durability

As the manufacturer, we build these to handle real-world use in the U.S.:

• Shell: High-strength plastic, impact-resistant
• Buttons: Firm, responsive rubber pads with clear icons
• Electronics: Stable PCB design for consistent range
• Water Resistance: Everyday splash and light rain resistant (not meant for swimming or soaking)

We focus on OEM-level performance without the dealer markup.

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What You Get in the Box

When you order this Cadillac OUC6000066 key fob from Keylessbest, you receive:

• 1x Complete remote (case + electronics + ID46 chip installed)
• 1x Uncut emergency key blade
• 1x Pre-installed CR2032 battery
• Basic usage and compatibility guidance from our support team

If you need other GM-style remotes in the future, you can always browse our full lineup directly on the Keylessbest car key and remote store.

Keylessbest vs Dealer and Other Aftermarket Cadillac Key Fobs

Price vs Dealer Cadillac Key Fob

Cadillac dealer pricing for an OUC6000066 remote is usually high once you add parts + programming.

*Pricing ranges based on U.S. region and dealer policy.

You’re getting the same core function without paying dealer overhead.

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OEM-Level Performance and Range

Our 2007–2013 Cadillac CTS/DTS/SRX key fob (FCC ID OUC6000066, 315MHz) is built to match OEM behavior:

• Same frequency and ID46 Philips Crypto chip as original
• Range comparable to factory remote when programmed correctly
• Full support for Lock / Unlock / Trunk / Panic / Remote Start (if your car came with it)

We use the same approach to OEM-level builds as we do on other lines like our Land Rover LR3 and Range Rover remotes, so signal consistency and durability are non‑negotiable.

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Cheap Clone Remotes vs Keylessbest Quality

Not all aftermarket Cadillac OUC6000066 key fobs are equal. Here’s the difference:

You’re not just buying “a remote”; you’re paying for reliability you don’t have to think about.

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Real Savings on Parts and Programming

Here’s where U.S. customers usually save with our Cadillac non‑proximity key fob:

• Remote from dealer: $160–$280
• Programming at dealer: $80–$150
• Total dealer route: Often $240–$430+

With Keylessbest:

• Remote from us: Usually well under dealer part cost
• Programming at locksmith: Often $60–$120
• Total: Commonly $100–$200+ saved vs dealer

Most owners recoup the cost of the remote the moment they avoid that dealer parts counter.

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Warranty, Returns, and Support

We back our Cadillac OUC6000066 key fob with:

• Clear warranty against manufacturing defects
• Straightforward returns if compatibility is wrong and the remote is still in resellable condition
• Real support from people who deal with GM/Cadillac remotes every day

Big-box and random online sellers usually offer:

• Vague or limited return windows
• No tech help if programming doesn’t go smoothly
• Little understanding of non‑proximity vs proximity or FCC ID issues

With us, if something doesn’t add up, you can email photos of your old Cadillac key fob, and we’ll help confirm the match before or after purchase.

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Why Cadillac Owners Choose Keylessbest

Thousands of CTS, DTS, and SRX owners use our remotes because:

• They want OEM-level function without dealer pricing
• They like dealing with a specialist in car keys, not a random marketplace seller
• They know we pre-test every remote and use proper 315MHz and ID46 components
• They want someone to actually answer questions about compatibility and programming

If you’re in the U.S. and need a Cadillac OUC6000066 5-button, 315MHz, non‑proximity key fob, my whole goal is to give you a reliable, dealer‑level solution at a much better price.

Programming Your Cadillac CTS DTS SRX Key Fob OUC6000066

Who Can Program This Cadillac OUC6000066 Key Fob

For this 315MHz Cadillac OUC6000066 non‑proximity key fob, plan on professional programming:

• Preferred: Licensed automotive locksmith
• Option: Cadillac / GM dealer service department

Both can program the ID46 Philips Crypto chip inside this remote and pair it to your CTS, DTS, or SRX.

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Basic Programming Overview (What Actually Happens)

You don’t program this Cadillac key fob at home with button presses. The locksmith or dealer will:

1. Connect a diagnostic/programming tool to your OBD port.
2. Verify your VIN and immobilizer system.
3. Add the new OUC6000066 remote to your car’s security system.
4. Sync the keyless entry functions (lock, unlock, trunk, panic, remote start).

The whole process is usually plug-in, select vehicle, add key, confirm, then test.

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What You Need To Bring

To get this Cadillac key fob programmed, you’ll need:

• Photo ID (driver’s license)
• Vehicle proof of ownership – title or registration
• VIN (from the dash or driver’s door sticker)
• Any working key or remote, if you still have one

Without proof of ownership, most legit locksmiths and dealers won’t program the remote.

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Typical Programming Time & Cost

In the U.S., you can expect:

• Time: About 15–30 minutes once the car is in the bay
• Locksmith cost: Usually $60–$120 for programming (cutting blade may be extra)
• Dealer cost: Often $120–$200+ just for programming, plus their higher part markup

This is exactly why we focus on offering OEM‑level remotes without dealer pricing games.

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DIY / On‑Board Programming Limits

For this specific Cadillac non‑proximity OUC6000066 key fob:

• There is no true “push a few buttons and program it yourself” method on most 2007–2013 CTS, DTS, SRX models.
• A scan tool that can access the GM immobilizer / BCM is required.
• Any “universal DIY programmer” you see online that doesn’t clearly support GM / OUC6000066 / ID46 is usually a waste of money.

If you’re set on DIY, you’d still need pro‑level equipment—most owners are better off paying a locksmith.

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Common Programming Issues & How To Avoid Them

Avoid headaches by checking these before you go:

• Wrong FCC ID: Make sure your old remote or your research confirms FCC ID OUC6000066. If your old fob shows something else (like HYQ or a different code), this one won’t program.
• Proximity vs non‑proximity: If your Cadillac is push‑to‑start with a smart key, this remote is not for you.
• Weak car battery: A low vehicle battery can cause programming to fail or drop keys from memory.
• Too many keys in memory: Some vehicles have a limit; your locksmith can clear old keys if needed.

If programming fails, 9 out of 10 times it’s wrong remote or vehicle system issues, not the chip itself.

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How To Test All 5 Buttons After Programming

Once the locksmith or dealer says it’s done, test it on the spot:

1. Lock – Press lock. Doors should lock, lights may flash, horn chirp (depending on settings).
2. Unlock – Press unlock. Check all doors unlock properly.
3. Trunk – Hold the trunk button. Trunk or liftgate should pop or release.
4. Remote Start –
   • Lock the car
   • Press and hold remote start (often press twice or hold, depending on model)
   • Engine should crank and run if your car is equipped and enabled
5. Panic – Hold panic. Horn and lights should activate, then shut off when pressed again.

Also check:

• Range from different angles and 20–50+ feet away
• That the new fob starts the car using the key blade or ignition as designed

If any function doesn’t respond, have the locksmith or dealer recheck programming before you leave.

Cutting the Emergency Key Blade

Why You Still Need the Emergency Key (Even With Remote Start)

Even with remote start and keyless entry, the metal emergency key blade on your 2007–2013 Cadillac CTS, DTS, or SRX key fob OUC6000066 still matters. You’ll need it when:

• The key fob battery dies
• The car battery is low or dead
• The remote gets damaged or lost
• You need to manually unlock the door or turn the ignition (non‑proximity only)

Without a cut emergency key, you’re one dead battery away from being locked out.

Where to Get the Cadillac Emergency Key Blade Cut

For this Cadillac non‑proximity key fob (FCC ID OUC6000066, 315MHz), you can get the emergency key blade cut at:

• A local automotive locksmith (usually the best balance of price and skill)
• Some Cadillac or GM dealers (depends on policy)
• Local key shops that advertise laser key cutting or high‑security automotive keys

When you’re shopping for a replacement, look for a complete remote with an uncut blade, not just a shell or refurbished housing, the same way you’d compare complete GM remotes like the 5‑button Chevrolet/GMC/Buick keyless entry remote.

What Locksmiths Need to Cut This Key Correctly

To cut your Cadillac emergency key blade, the locksmith will typically need:

• Your VIN (vehicle identification number)
• A working key (if you still have one) or the original blade as a reference
• Photo ID and proof of ownership (title, registration, or insurance card)

Tell them this is a Cadillac OUC6000066 non‑proximity key fob for a CTS, DTS, or SRX so they know it’s a standard high‑security side‑milled blade.

If the Dealer Refuses to Cut an Aftermarket Key

Some dealers won’t cut aftermarket Cadillac key fobs, even if they’re OEM‑spec. If that happens:

• Call an independent automotive locksmith – most will cut and program aftermarket keys daily
• Ask the dealer for a key code printout (some will provide it for a small fee) and take it to a locksmith
• Be upfront that it’s an aftermarket Cadillac replacement remote; plenty of U.S. locksmiths are used to this and won’t care

How to Verify the New Blade Works

Before you leave the shop, test the emergency key blade:

• Door test:
  • Manually lock and unlock the driver’s door with the key
  • Make sure it turns smoothly in both directions with no sticking
• Ignition test (non‑proximity only):
  • Insert the key, turn to ON and START
  • Confirm the key turns fully and starts the engine
• Feel check:
  • The key should slide in and out cleanly, with no grinding or force

If anything feels tight, rough, or inconsistent, have the locksmith recheck the cut right away.

How to Verify the Correct Cadillac Key Fob Before You Buy

Before you order a 2007-2013 Cadillac CTS DTS SRX key fob OUC6000066 from Keylessbest, you want to be sure it’s the exact match. Here’s how I tell customers to double-check fitment so they don’t waste time or money.

Match Your Old Remote’s FCC ID and Buttons

• Flip your original Cadillac remote over and look for “FCC ID: OUC6000066” printed on the back.
• Count and match the buttons:
  • Lock
  • Unlock
  • Remote Start (circle arrow)
  • Trunk
  • Panic (red horn or symbol)
• If your FCC ID is not OUC6000066 or your button layout is different, this is not your remote.

Compare Shell Style and Chip Type

• The correct Cadillac OUC6000066 key fob is a 5-button non-flip remote with a separate metal emergency key blade.
• If your old remote is:
  • A flip key,
  • A smart / proximity fob with no visible key, or
  • A different shape or size,
    you likely need a different style.
• Inside, this remote uses an ID46 Philips Crypto chip and 315MHz frequency. A locksmith or dealer can confirm this when you bring your old key in.

Use Your Owner’s Manual and Door Lock Style

• Check your owner’s manual under “Keys and Remote Keyless Entry” and confirm it shows a standard remote with a metal key.
• Look at your doors and ignition:
  • If you insert a metal key into the ignition and door, you’re almost always on a non-proximity system like this one.
  • If you have no key slot and use push-button start, this OUC6000066 non-proximity fob will not work.

Red Flags You Have a Proximity / Smart Key System

If any of these are true, stop and re-check before buying:

• Your Cadillac has push-to-start (START/STOP button) and you don’t use a metal key to start the car.
• The car starts with the fob in your pocket and no key turn.
• Your old remote looks like a solid smart fob with no visible or removable key blade slot.
• Dealer paperwork or the manual mentions “proximity key”, “smart key”, “PEPS”, or “keyless ignition”.

If you see these signs, you’re not on the standard OUC6000066 non-proximity system.

Photo Tips for Compatibility Checks

If you’re not 100% sure, send us clear photos so we can confirm for you before you buy:

• Front and back of your current key fob (close-up, in good light so we can read FCC ID and part numbers).
• The key blade and ignition cylinder area.
• The driver’s door lock and interior start method (key slot or push button).

Good clear pictures let us verify if our Cadillac 5-button 315MHz OUC6000066 remote is the right match, just like we do when helping customers with other OEM-style remotes (for example, our Toyota Prius OEM-style keyless remote uses the same verification process).

Troubleshooting Cadillac Key Fob OUC6000066 Issues

If Your OUC6000066 Won’t Program on the First Try

If your 2007–2013 Cadillac CTS, DTS, or SRX key fob OUC6000066 doesn’t program right away, here’s what I always tell customers to check first:

• Confirm compatibility
  • FCC ID on your old remote must be OUC6000066
  • Vehicle must be non‑proximity / standard key, not push‑to‑start
• Verify tools and equipment
  • Make sure a GM-compatible scan tool is being used (dealer or pro locksmith)
  • Ask the locksmith to double-check the 315MHz / ID46 Philips Crypto setting
• Try a fresh programming session
  • Clear failed attempts from the system and restart programming from step one
  • Program all existing remotes in the same session, not just the new one

If it still won’t take, stop and contact us with your VIN, model, and year so we can help you confirm you’ve got the right Cadillac OUC6000066 key fob.

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Weak Signal or Short Range After Programming

If the remote works but only when you’re very close to the car:

• Replace the battery first
  • Use a quality CR2032 battery (brand-name cells work best)
• Check for interference
  • Test in an open area away from garages packed with electronics
• Inspect the shell
  • Make sure the case is fully snapped together and not cracked
• Compare to another remote
  • If your old remote has normal range and the new one doesn’t, reach out for a warranty check

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Buttons Working Inconsistently or Not at All

When some buttons on your Cadillac OUC6000066 key fob work and others don’t:

• Re-open the case carefully
  • Confirm the rubber pad is lined up with the board
  • Look for any bent or misaligned button contacts
• Test all 5 buttons
  • Lock
  • Unlock
  • Trunk
  • Panic
  • Remote Start (if your vehicle is equipped and enabled)
• Check for moisture or dirt
  • If you see corrosion, the fob may be damaged beyond simple repair

If multiple buttons are dead but the fob is correctly programmed, we’ll treat it as a product issue and walk you through our replacement process.

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Remote Start Not Responding, But Lock/Unlock Works

This is common and usually not a bad remote:

• Confirm your car actually has factory remote start
  • Not all CTS, DTS, and SRX trims support it from the factory
• Check remote start procedure
  • Typically: Lock → then press and hold Remote Start button
• Verify hood and safety switches
  • Remote start will not work if:
    • Hood is open
    • Check engine light or certain fault codes are active
    • Vehicle is not in Park
• Look in your owner’s manual or with your dealer
  • Some cars have remote start disabled in settings and need to be turned on

If lock/unlock/trunk/panic all work and only remote start fails, the issue is almost always on the vehicle side, not the key fob.

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When to Suspect Antenna or BCM Issues Instead of the Remote

If you see these symptoms, the problem may be the car, not the Cadillac 5-button remote:

• All remotes have poor or no range
• Intermittent response, even with OEM remotes
• Random lock/unlock failures with multiple fobs
• Remote works inside the car but not outside

In these cases, you’ll want a shop or dealer to check:

• The RCDLR/antenna (keyless receiver)
• The BCM (Body Control Module) and related wiring
• Fuses and grounds for the keyless entry system

We can help you rule out the remote so you don’t throw money at the wrong part.

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How Warranty Replacement Works With Keylessbest

I stand behind these aftermarket Cadillac OUC6000066 key fobs. If there’s a real product defect:

• Contact us with:
  • Order number
  • VIN, year, and model (CTS, DTS, or SRX)
  • Short description of the issue and what’s been tried so far
• We’ll help you troubleshoot first
  • To make sure it’s not a programming, battery, or compatibility issue
• If the remote is bad, we replace it
  • You get a warranty replacement according to the terms on your order
  • We’ll guide you on reprogramming if needed

Our goal is simple: a Cadillac non-proximity key fob that works like OEM without dealer pricing.

Using and Maintaining Your Cadillac OUC6000066 Key Fob

Daily Use Tips to Extend Remote Life

I want your Cadillac OUC6000066 key fob to last years, not months. Here’s what I recommend:

• Use the buttons firmly, not aggressively – no hard jabbing or pressing with keys/nails.
• Don’t pocket it with coins or sharp keys that can crack the shell or wear the buttons.
• Avoid constant “clicking” just to hear the horn – that kills batteries fast.
• If your car doesn’t respond, move a few feet closer first before assuming the remote is bad.

How to Safely Replace the CR2032 Battery

This Cadillac 5-button remote uses a CR2032 battery. Swap it like this:

1. Open the shell carefully with a small flat screwdriver or plastic pry tool at the seam.
2. Note battery orientation (which side is facing up) before removing it.
3. Remove the old CR2032, then insert a new name‑brand CR2032 with the same orientation.
4. Avoid touching the battery contacts with greasy or wet fingers.
5. Snap the shell back together and test Lock/Unlock from a short distance.

Change the battery every 1–2 years or when range noticeably drops.

Cleaning and Caring for the Cadillac Key Fob Shell

Keep the shell clean so the buttons don’t stick and the electronics stay protected:

• Wipe with a soft, slightly damp cloth and mild soap if needed.
• Use a cotton swab around the buttons to clear dirt and pocket lint.
• Never use harsh chemicals, alcohol, or solvents on the plastic or rubber.

What to Avoid (Water, Drops, Heat)

This OUC6000066 remote is durable, but it’s not indestructible:

• Don’t soak it – no washing machines, swimming pools, or long rain exposure.
• Avoid major drops on concrete or from height; that can crack solder joints.
• Keep it out of extreme heat – dashboards in summer, near heaters, or direct sunlight for hours.
• If it gets wet, remove the battery immediately, dry the inside gently, and let it air out before reinstalling.

How Often to Check Range and Performance

Make it a habit to “health check” your Cadillac key fob:

• Once a month, stand 30–50 feet away and test Lock/Unlock and Remote Start.
• If you see short range, delayed response, or skipped presses, replace the battery first.
• If a fresh CR2032 doesn’t fix it, then it’s likely wear on the remote or a vehicle-side issue, and you should contact your locksmith or service shop.

Storing a Spare Fob and Emergency Key Blade

If you buy a second OUC6000066 from us, treat it like insurance:

• Store the spare fob in a dry, cool place inside your home, not in the car.
• Keep the uncut or cut emergency key blade in a clearly labeled spot (or with someone you trust).
• Pop the spare out once every few months, test the buttons, and replace its battery every couple of years even if you’re not using it daily.

Handled right, a quality aftermarket Cadillac OUC6000066 key fob will give you OEM-level reliability for the long haul.

Understanding Non‑Proximity vs Proximity Cadillac Keys

Standard OUC6000066 vs Smart “Proximity” Keys

For 2007–2013 Cadillac CTS, DTS, and SRX, there are two very different systems:

• Non‑proximity (standard) key fob – OUC6000066
  • Uses a traditional metal key in the ignition
  • 5-button remote (Lock, Unlock, Trunk, Panic, Remote Start)
  • FCC ID OUC6000066, 315MHz, ID46 chip
• Proximity / smart key
  • Push‑to‑start button, no metal key turning in the ignition
  • Fob stays in your pocket; the car senses it near the vehicle
  • Uses a different FCC ID and internal chip

If your Cadillac has a metal key you turn, you’re almost certainly using a non‑proximity OUC6000066-style fob. If you have push‑button start, you need a proximity smart key, not this remote.

How Push‑to‑Start Changes the Remote You Need

Push‑to‑start systems rely on close‑range communication between the car and fob. That means:

• Different FCC ID and frequency
• Different chip inside the fob
• Different programming process

So if your Cadillac has push‑to‑start, this 315MHz Cadillac OUC6000066 key fob will not work, even if the buttons look the same.

Why Matching FCC ID and Frequency Matters

For non‑proximity Cadillacs, you need to match:

• FCC ID: OUC6000066
• Frequency: 315MHz
• Button layout: 5 buttons with Remote Start (if your car is equipped)

When you match those, you’re aligning your new fob with your car’s Body Control Module (BCM) and antennas. If FCC ID or frequency is wrong, the car simply won’t recognize the remote, and no amount of programming will fix it.

Myths About “Universal” Cadillac Remotes

Here’s what I see all the time in the U.S. market:

• “Works for all Cadillac CTS/DTS/SRX” – False if they don’t list OUC6000066 and 315MHz.
• “Universal GM remote” – There is no true universal for these years. You must match FCC ID and system type.
• “If it looks the same, it will work” – The shell can look identical while the chip and frequency are completely different.

Always treat any “universal” or “one‑size‑fits‑all Cadillac remote” claims as a red flag.

How Knowing Your System Saves You Money

When you know if your Cadillac is non‑proximity vs proximity, you:

• Avoid buying the wrong fob that can’t be programmed
• Save time and locksmith/dealer diagnostic fees
• Get your car back on the road faster with a compatible aftermarket Cadillac key fob

If you’re unsure which system you have, you can snap clear photos of your current key/fob and your ignition (or start button) and send them to a professional for a quick compatibility check. A good support team—like the one that backs our products through the Keylessbest service center—will confirm before you spend a dollar.

Why Choose Keylessbest for Your Cadillac Replacement Remote

Our Background With GM & Cadillac Remotes

I’ve been focused on GM and Cadillac platforms for years, and this Cadillac OUC6000066 key fob is built specifically around factory specs for:

• 2008–2013 CTS (non-proximity)
• 2008–2011 DTS (non-proximity)
• 2007–2009 SRX (non-proximity)

Every remote is designed to match OEM function: 315MHz, ID46 Philips Crypto chip, and the correct 5-button layout.

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Quality Control & Pre‑Testing

Before any Keylessbest Cadillac replacement remote ships, we:

You’re not getting a random clone – you’re getting a remote we’ve already powered up and checked.

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Real Support Before & After You Buy

If you’re not sure your car uses non-proximity or you need help matching FCC ID OUC6000066, we walk you through:

• Verifying your old remote / FCC label
• Confirming push‑to‑start vs standard key
• Finding a local locksmith for cutting and programming

You can also see how we handle GM platforms on our Corvette / CTS / DTS remotes in this GM keyless entry remote listing.

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Real Feedback From CTS, DTS & SRX Owners

People using this Cadillac 5-button remote 315MHz usually tell us:

• Range and response feel like the original dealer fob
• Remote start, trunk, and panic work as expected after proper programming
• Shell and buttons hold up well in daily U.S. use (pockets, key hooks, cupholders, etc.)

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How We Beat Dealer Markups

You keep the same functionality without paying dealer premium on parts.

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Long‑Term Reliability & Return Customers

Most people come back to us when:

• They add a spare Cadillac key fob
• A second driver needs their own remote
• They replace another GM vehicle and want to avoid dealer pricing again

The combination of OEM-style performance, pre‑testing, and straightforward support is why a lot of CTS, DTS, and SRX owners stick with Keylessbest for their Cadillac remotes.

Buying Tips for 2007–2013 Cadillac CTS DTS SRX Key Fobs Online

Shopping online for a 2007–2013 Cadillac CTS, DTS, or SRX key fob is easy if you know what to look for and what to avoid. Here’s how I’d do it.

Use FCC ID OUC6000066 To Compare Listings

Always start with the FCC ID. For these Cadillacs, you need:

• FCC ID: OUC6000066
• Frequency: 315MHz
• Buttons: 5-button layout (Lock, Unlock, Trunk, Panic, Remote Start)

If a listing doesn’t clearly show FCC ID OUC6000066 in the title, photos, or description, skip it.

Avoid Knockoff or Wrong-Style Remotes

Red flags that usually mean trouble:

• No FCC ID or “fits many Cadillacs” with no details
• No mention of non-proximity / standard key system
• Very blurry photos or only stock images
• Pricing that’s unrealistically low compared to other sellers

Stick with sellers that specialize in automotive remotes and clearly list specs, like FCC ID, frequency, and compatible years.

What To Look For in Photos and Descriptions

In the product photos and description, confirm:

• Exact 5-button layout: Lock, Unlock, Remote Start, Trunk, Panic
• Non-proximity style: traditional key-in-ignition, not a push-to-start smart fob
• Compatible models listed:
  • 2008–2013 Cadillac CTS (non-prox)
  • 2008–2011 Cadillac DTS (non-prox)
  • 2007–2009 Cadillac SRX (non-prox)
• Includes electronics + transponder chip, not just plastic

You can also check our detailed Cadillac key fob battery guide to confirm the correct battery type (CR2032) and see what a proper OEM-style fob looks like inside.

“Complete Remote” vs “Shell Only” vs “Refurbished”

Most listings fall into one of three categories:

• Complete Remote:
  • Brand-new shell
  • New internal board + transponder chip
  • Ready to program and cut
  • This is what we manufacture and sell.
• Shell Only:
  • Just the outer case and buttons
  • No chip, no board – you move your old guts over
  • Good only if your current remote works but the case is broken.
• Refurbished:
  • Used OEM internals cleaned and installed into a new shell
  • Usually works fine but not truly new

If you want a full replacement for a lost or dead fob, make sure it clearly says complete remote with electronics and chip.

Smart Questions To Ask Before You Order

Before you hit “buy,” ask the seller:

• Does this key fob use FCC ID OUC6000066 at 315MHz?
• Is it for non-proximity (standard key), not push-to-start?
• Is this a complete remote, including electronics and ID46 chip?
• Can my local locksmith program this remote, or is dealer-only programming required?
• What’s the warranty if the key fob won’t program or fails early?

If a seller can’t answer those questions clearly, I wouldn’t trust them with my Cadillac key fob.