Auto Keys
Cadillac Key Replacement, Key Fob Programming & Smart Key Service
From transponder remotes to PEPS push-to-start smart keys, we cut and program Cadillac keys and fobs at your location across Palm Beach County.
Cadillac shares the GM platform with Chevrolet, GMC, and Buick, so its keys follow the same path from transponder remotes through flip-key remotes to today's PEPS passive-entry push-to-start smart keys. The Escalade in particular mirrors the full-size GM SUV systems, so identifying the year and ignition type is the first step in any Cadillac key job.
Our mobile techs carry blanks, cutters, and programming tools for the most common Cadillac models in Palm Beach County, including the Escalade, CTS, and XT5. Because Cadillac and the rest of the GM family share many fobs, we confirm the exact remote by VIN or the original key before we cut, and we tell you the price before we start.
Cadillac models we service
Cadillac key types by generation
Cadillac keys changed significantly from one era to the next. The right blank, chip, and programming path depend on the year, trim, and ignition type, which is why we ask for the details before selecting a key.
Early to mid 2000s: transponder remote keys
Early Cadillac models used GM transponder keys with remote heads. The chip talks to the GM immobilizer, so a blade that fits the lock still will not start the engine unless the transponder is matched.
2008 to 2017: smart and flip-key remotes
Cadillac moved many cars to flip-key and remote systems such as the OHT01060512-era on the CTS and ATS, while several models adopted early proximity smart keys. All-keys-lost work in this era is done by OBD with the right security access.
2015 to present: PEPS push-to-start smart keys
Push-to-start Cadillacs use PEPS (passive entry push start) smart keys such as the HYQ1EA and HYQ4EA on the Escalade. Replacing a lost smart key requires programming to the specific vehicle.
Cadillac key data by model
Verified blank, chip, and FCC references are marked accordingly. Where a value depends on trim, button count, or production date, confirm it from the original key, a VIN lookup, or a supplier catalog before cutting or ordering.
Data is drawn from professional locksmith key references. It is a starting point for identification, not a guarantee for your specific vehicle.
Cadillac Escalade Key Replacement
The Escalade mirrors the full-size GM SUV key systems of the Tahoe, Suburban, and Yukon, moving from transponder remotes to PEPS smart keys.
| Year range | Key type | Ilco / keyway | Chip / system | FCC / OEM | Programming | Emergency / service key | Source confidence |
|---|---|---|---|---|---|---|---|
| 2002-2006 | Transponder remote head key | Shares the GM full-size SUV keyway; confirm from original key | GM transponder immobilizer; confirm chip from original key | Shares the GM KOBLEAR1XT-era system; confirm FCC from original fob or VIN | Onboard procedure or OBD | Mechanical blade | Confirm with original fob |
| 2007-2014 | Remote head key | Shares the GM full-size SUV keyway; confirm from original key | GM transponder immobilizer; confirm chip from original key | Shares the GM OUC60270-era system; confirm FCC from original fob or VIN | OBD programming | Mechanical blade | Confirm with original fob |
| 2015-2020 | PEPS smart key (proximity) | Emergency insert blade | PEPS passive entry push start system | FCC HYQ1EA | Proximity programming | Emergency insert | Verified from source data |
| 2021-2025 | PEPS smart key (proximity) | Emergency insert blade | PEPS passive entry push start system | FCC HYQ4EA | Proximity programming | Emergency insert | Verified from source data |
Cadillac CTS Key Replacement
The CTS spans early transponder keys, proximity smart keys, and the OHT01060512-era remote system depending on the year and trim.
| Year range | Key type | Ilco / keyway | Chip / system | FCC / OEM | Programming | Emergency / service key | Source confidence |
|---|---|---|---|---|---|---|---|
| 2003-2007 | Transponder / remote head key | GM keyway; confirm from original key | GM transponder immobilizer; confirm chip from original key | Confirm FCC from original key or VIN | Onboard procedure or OBD | Mechanical blade | Confirm with original fob |
| 2008-2013 | Smart key (proximity) or remote by trim | Emergency insert blade where push-to-start | GM transponder immobilizer; confirm chip from original key | Confirm FCC from original fob or VIN | OBD or proximity programming | Emergency insert | Varies by trim |
| 2014-2019 | Smart key (proximity) or remote by trim | Emergency insert blade where push-to-start | GM transponder immobilizer; confirm chip from original key | FCC OHT01060512 (confirm by VIN) | OBD or proximity programming | Emergency insert | Confirm with original fob |
Cadillac XT5 Key Replacement
The XT5 crossover uses push-to-start proximity smart keys, but the source data lists no XT5-specific fob, so we confirm the exact part before cutting.
| Year range | Key type | Ilco / keyway | Chip / system | FCC / OEM | Programming | Emergency / service key | Source confidence |
|---|---|---|---|---|---|---|---|
| 2017-2020 | Smart key (proximity) | Emergency insert blade | PEPS passive entry push start system; confirm chip from original key | Confirm FCC from original fob or VIN | Proximity programming | Emergency insert | Confirm with original fob |
| 2021-2025 | Smart key (proximity) | Emergency insert blade | PEPS passive entry push start system; confirm chip from original key | Confirm FCC from original fob or VIN | Proximity programming | Emergency insert | Confirm with original fob |
Common Cadillac key problems
- •Worn transponder blades that turn the lock but no longer start the engine reliably.
- •Lost or water-damaged PEPS smart keys after a day on the water or at the beach.
- •All-keys-lost situations on push-to-start Escalade and XT5 models that need programming to the vehicle.
- •Buttons that stop responding on smart keys while the emergency blade still works.
- •Dead smart-key coin batteries mistaken for a failed fob.
- •Confusion between turn-key and push-to-start CTS trims of the same year.
Cadillac programming notes
- •Adding a spare to a vehicle that already has a working key is faster and cheaper than an all-keys-lost job.
- •All-keys-lost programming on many GM models needs proper security access, which can add time.
- •PEPS smart keys are programmed to one specific vehicle and cannot be moved to another Cadillac.
- •Because Cadillac shares the GM platform, we verify the exact fob against the original or VIN before cutting.
- •We confirm the exact key code from the VIN or lock before cutting any emergency blade.
What to have ready before service
Sending these details when you call (561) 839-9919 lets us bring the right blank and programming tools on the first trip so your Cadillac job is done in one visit.
Real Cadillac locksmith scenarios
These are the Cadillac situations we actually get called for in Palm Beach County, with the technician's read on each one: what is happening, whether a mobile locksmith can solve it, and what the job typically involves. They are educational examples, not testimonials.
PEPS no key detected on a push-to-start Cadillac
An Escalade or XT5 shows a no key detected message even with the fob in the cabin.
Likely causes
- •Dead or weak fob coin battery.
- •Failed or water-damaged PEPS smart key.
- •All fobs lost so none can be detected.
Programming
Required for a new fob
Ignition repair
Not required
Key replacement
If the fob has failed
Complexity
Routine to moderate
Common repair options
- •Replace the fob battery and retest.
- •Program a new PEPS smart key and cut the emergency insert blade.
Can a locksmith help? Yes. We test the fob, replace the battery, or program a new PEPS smart key if it has failed.
Dead coin battery mistaken for a failed fob
The Cadillac smart key suddenly stops being detected and you worry the fob has died.
Likely causes
- •A drained coin battery inside the smart key.
- •A fob that has not been used for long stretches.
Programming
Not required if a battery fixes it
Ignition repair
Not required
Key replacement
Only if the fob has truly failed
Complexity
Routine
Common repair options
- •Replace the coin battery and retest the proximity function.
- •Program a new smart key only if the original is confirmed bad.
Can a locksmith help? Yes. We test the fob, replace the coin battery, and confirm it pairs again before assuming the worst.
Smart key not detected though the doors still work
The fob still locks and unlocks the doors, but the vehicle will not detect it to start.
Likely causes
- •Weak coin battery that still drives the buttons but not the proximity function.
- •Partial fob failure or antenna fault.
Programming
Required for a replacement fob
Ignition repair
Not required
Key replacement
If the fob has partly failed
Complexity
Routine to moderate
Common repair options
- •Replace the coin battery first as the cheapest fix.
- •Program a new PEPS smart key if the original has failed.
Can a locksmith help? Yes. We confirm whether it is the fob or the vehicle and program a replacement if needed.
Water-damaged smart key after a day on the water
The fob got wet at the beach or on the boat and now works intermittently or not at all.
Likely causes
- •Salt water or moisture corroding the fob board.
- •Swollen or shorted coin battery.
Programming
Required for the replacement
Ignition repair
Not required
Key replacement
Usually required
Complexity
Routine to moderate
Common repair options
- •Program a new PEPS smart key and cut the emergency insert blade.
- •Keep a dry spare for boating and beach days.
Can a locksmith help? Yes. A corroded fob is usually replaced and programmed rather than repaired.
Lost all keys on an Escalade
Every key is gone and there is no working key to copy from.
Likely causes
- •All keys lost or stolen.
- •Only one key ever existed and it failed.
Programming
Required
Ignition repair
Not required unless the lock is damaged
Key replacement
Required
Complexity
Moderate to advanced
Common repair options
- •Program a new PEPS smart key from scratch and cut the emergency insert blade.
- •Add a spare at the same visit so you are never stranded again.
Can a locksmith help? Yes. We generate and program a new smart key from the vehicle, though all-keys-lost jobs need proper security access and take longer.
Spare key while you still have a working one
You only have one key and want a backup before something happens to it.
Likely causes
- •Single key from a used purchase.
- •A lost spare never replaced.
Programming
Required to pair the spare
Ignition repair
Not required
Key replacement
Adding a spare
Complexity
Routine
Common repair options
- •Cut and program a duplicate smart key.
- •Store the spare somewhere safe and off the keyring.
Can a locksmith help? Yes. Adding a spare while you still have a working key is the fastest and cheapest key job there is.
Remote start no longer works
The factory remote start has stopped working from the fob even though the vehicle starts normally.
Likely causes
- •Weak fob battery shortening remote-start range.
- •Remote start disabled by a stored fault or a previous all-keys event.
- •A fob that was never fully programmed for remote start functions.
Programming
Required if a new fob is supplied
Ignition repair
Not required
Key replacement
If the fob has failed
Complexity
Routine to moderate
Common repair options
- •Replace the fob battery and retest range.
- •Program a correct fob that supports the remote-start feature.
Can a locksmith help? Yes. We check the fob and programming and supply a correct fob where the remote-start buttons have failed.
Security light on, engine cranks but will not start
The engine turns over but never catches, and a security or theft light shows on the dash of an older Cadillac.
Likely causes
- •The transponder in the key is not being read by the GM immobilizer.
- •A failed or damaged chip, or a key that was never fully programmed.
Programming
Usually required
Ignition repair
Only if the lock or reader is also faulty
Key replacement
Often
Complexity
Moderate
Common repair options
- •Reprogram the existing key if the chip is intact.
- •Cut and program a new key if the chip has failed.
Can a locksmith help? Yes. We diagnose whether the key is being read and reprogram or replace it so the immobilizer recognizes it.
Key stuck or will not turn in the ignition
On a turn-key CTS or older Cadillac, the key goes in but will not rotate, or it sticks and binds.
Likely causes
- •Worn ignition lock cylinder or worn key.
- •Steering lock binding against the cylinder.
Programming
Only if a new key is required
Ignition repair
Often required
Key replacement
Frequently paired with cylinder work
Complexity
Moderate
Common repair options
- •Cut a fresh key to code if the key is worn.
- •Repair or replace the ignition lock cylinder if it is the fault.
Can a locksmith help? Yes. We diagnose whether it is the key or the cylinder and repair or rebuild the ignition as needed.
Worn transponder blade that starts intermittently
On an older turn-key Cadillac, the key turns the ignition but sometimes the engine will not start until you jiggle it.
Likely causes
- •Worn key blade no longer aligning the wafers reliably.
- •Weak or failing transponder chip.
Programming
Required for a new key
Ignition repair
Only if the cylinder is also worn
Key replacement
Recommended
Complexity
Routine
Common repair options
- •Cut a new key to code rather than copying the worn one.
- •Inspect the ignition cylinder for wear at the same visit.
Can a locksmith help? Yes. We cut a fresh key to the correct code and program a new chip so starting is reliable again.
Broken smart key shell while the electronics still work
The Escalade still starts, but the smart key shell has cracked or the keyring loop has broken off.
Likely causes
- •Worn smart-key shell after years of daily use.
- •Dropped key or a failed seam.
Programming
Only if a new key is supplied
Ignition repair
Not required
Key replacement
Shell swap or full key
Complexity
Routine
Common repair options
- •Rehouse the existing electronics and blade in a new shell.
- •Program a new smart key if the electronics are also failing.
Can a locksmith help? Yes. We can transfer the working electronics into a new shell or supply and program a fresh smart key.
Used Cadillac bought with only one key
You bought a used Cadillac with a single key and want a backup before something happens to it.
Likely causes
- •Only one key handed over at purchase.
- •Unknown key history from a prior owner.
Programming
Required to pair the spare
Ignition repair
Not required
Key replacement
Adding a spare
Complexity
Routine to moderate
Common repair options
- •Program a second smart key as a backup.
- •Confirm whether the vehicle is turn-key or push-to-start before ordering.
Can a locksmith help? Yes. We confirm the ignition type by VIN or your key and program a spare so you have a backup.
Cadillac Key & Fob FAQs
Can you make a Cadillac key if I lost all of them?
Yes. We generate and program a new key or smart key from your vehicle on site. All-keys-lost jobs on push-to-start models take a little longer because the key is programmed directly to the car.
Do you program Cadillac PEPS push-to-start smart keys?
Yes. We supply and program PEPS proximity smart keys such as the HYQ1EA and HYQ4EA on the Escalade and cut the emergency insert blade.
Is my CTS turn-key or push-to-start?
Both styles exist across the years. If you insert and twist a key it is turn-key; if you press a button to start it is a smart key. Tell us which so we bring the right key.
What does it cost to replace a Cadillac key?
It depends on the year and whether it is a transponder remote or a PEPS smart key. We give you an up-front price over the phone before we head out.
Can you cut a spare Cadillac key from my working one?
Yes, and a spare made while you still have a working key is the cheapest key you will ever buy. We cut and program it on the spot.
Do you come to my home or workplace for an Escalade?
Yes. We are fully mobile and service Cadillacs wherever they are parked across Palm Beach County.
My Cadillac key turns but won't start. What's wrong?
The chip in the key talks to the GM immobilizer. If the blade is fine but the engine cranks without starting or shows a security light, the transponder may have failed and the key needs reprogramming or replacement.
What information do you need to make a Cadillac key?
The year, model, VIN, whether it is turn-key or push-to-start, and proof you own the vehicle. A photo of your existing key or fob helps us match it.
Why is my Cadillac smart key not detected?
It is often a dead coin battery rather than a failed fob. We can test it, replace the battery, or program a new smart key if needed.
Are aftermarket Cadillac keys reliable?
Quality varies. We carry keys and fobs we trust to program and hold up in the Florida climate, and we will tell you honestly when an OEM fob is the better choice.
Other makes we cut & program keys for
Understand your Cadillac key before you call
Plain-English guides from our locksmiths on how Cadillac keys, fobs, and immobilizers actually work, so you know what you are dealing with.
Cadillac keys near you
We bring Cadillac key cutting and programming to your door across Palm Beach County.
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