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2004 Cadillac CTS
Key Replacement - Save vs Dealer in San Diego

We Drive to You | Stay Where You Are

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2004 Cadillac CTS Transponder Key
Transponder Key

Skip the trip to the dealer. Our mobile locksmith brings professional-grade equipment right to your door anywhere in the area. Your new key is cut and programmed while you wait.

CA BSIS LICENSE LCO#6792
Mobile Locksmith Park It, We Come Zero Hassle
Fast Response15-25
min arrival
100+reviews
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Verified locksmith 2004 Cadillac CTS key specs from EZ Car Keyz Carlsbad CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Verified locksmith 2004 Cadillac CTS key specs from EZ Car Keyz Carlsbad CA
Key specialists
Mobile Service
Our van carries everything - no shop visit needed
Fixed pricing
On Your Schedule
Same-day appointments, 7 days a week
Fast mobile service
One-Visit Solution
Key cut and programmed in a single visit
619 Special
10% OFFCODE:EZ-619-2026

🔥 Your spot, your key, your savings 🔥

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2004 Cadillac CTS
Key Options

Dealer-grade key for a fair, honest price

Transponder Key
Most popular Cadillac key typeMost Popular
2004 Cadillac CTS Transponder Key
FCC IDPart #5928825ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2004 Cadillac CTS Remote L2C0005T
FCC IDL2C0005TPart #16263074-99Buttons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Dealer grade 2004 Cadillac CTS key fob from EZ Car Keyz Carlsbad CA
Skip the Dealer Markup
Professional key, honest rate
Dealer grade 2004 Cadillac CTS key fob from EZ Car Keyz Carlsbad CA
🔧 PRO TIP
The 2004 CTS uses a transponder key that has to be programmed to the vehicle's immobilizer before the engine will run. Cutting the blade is step one, but if the chip isn't enrolled, the car will crank, fire for a second, and immediately die. That's the theft deterrent doing its job. On this generation, there's an onboard relearn sequence available, so a new key can be added without a dealer scan tool as long as at least one working key is already present. All-keys-lost is a different story and needs the right programming equipment to access security mode and enroll from scratch. Also worth knowing: the ignition switch on this generation CTS was subject to a recall due to the potential for the switch to move out of the run position under key-ring weight. If that recall was never completed on your car, keep a light keychain and get it looked at, because random stalls on these can trace straight back to the switch, not the transponder or immobilizer at all.
Related services: Ignition Repair · Smart Key

On-Site vs In-Shop

Mobile vs in-shop - see the difference

EZ Car Keyz
EZ Car Keyz
Dealership
Average Cost
✓ $$
✕ $$$$
Location
✓ We come to you
✕ You drive there
Wait Time
✓ 20-45 min
✕ 2-5 days
Same-Day
✓ Yes
✕ Rarely
All Keys Lost
✓ No problem
✕ Tow required
OEM Quality
✓ Yes
✓ Yes
EZ Car Keyz wins 5 out of 6
No appointment, no lobby, no hassle
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2004 Cadillac CTS Transponder Key Replacement - Fast, Affordable & Professional

I was out in Bressi Ranch on a Tuesday afternoon when I got the call. Guy had a 2004 Cadillac CTS sitting in his driveway, one key, and that key had just snapped at the head where the plastic meets the blade. The blade part was still in his pocket. The key head with the chip was rattling around loose. He wanted to know if I could sort it out on site.

When I got there, he handed me both pieces like maybe I could glue them back together. I told him that's not how this one works. The transponder sits inside the plastic head, and once that housing cracks and separates, you're not trusting a repair on the only key to a car you drive every day.

I cut a fresh blade to his vehicle, verified the transponder chip in the new key was blank, and ran the programming sequence. The CTS cranked right up, held the idle, and the security light went off the way it should. No drama.

He mentioned he'd already called a dealer and they wanted the car towed in, plus a wait time of a day or two because they were backed up. He was looking at missing work. I was done in about 40 minutes in his own driveway. The dealer quote was a good chunk more than what I charged, and he didn't lose the car for two days.

The one human moment: he asked if his old broken key would still work if he held the head against the ignition cylinder with his hand while inserting the blade. I told him that actually might crank the car once, but I wouldn't bet a morning commute on it. He laughed and said that's exactly what he'd tried before calling me.

Save vs the Dealer on Your Cadillac CTS Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

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BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
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Fully Insured
Liability & vehicle damage coverage
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Also serving: Aviara · Bressi Ranch · Carlsbad Ranch · Carlsbad Village

Cadillac CTS Rapid Response, Done Right

Rapid response in the field

Insured mobile locksmith working on 2004 Cadillac CTS in Carlsbad CA
Transponder Key | Rapid On-Site Service
2004 Cadillac CTS | San Diego
Insured mobile locksmith working on 2004 Cadillac CTS in Carlsbad CA
2004 Cadillac CTS Transponder Key
2004 Cadillac CTS
Transponder Key | Made at Your Door
Estimated arrival time to Carlsbad
We Come to You
Rapid Arrival
Available Today
Service location Carlsbad
Carlsbad
We Come Here
619 Area
Same-Day Keys (619) 876-1271

Why Cadillac Customers Skip the Dealer

Real reviews from real locations

K
Kane G.
Apr 2024
★★★★★

“Tim is a hero. He programmed a master proximity key for a newer Volkswagen that multiple locksmiths refused to touch. He spent hours until late at night making sure every function worked perfectly. The skill level here is incredible.”

Yelp Review
N
Natasha S.
Sep 2025
★★★★★

“Very professional and extremely affordable. The price was literally about three times cheaper than what my dealership quoted me. Fast service and no stress at all. Highly recommend.”

Google Review
A
A. G.
Jun 2025
★★★★★

“A friend lost my Lexus key and he was able to program and cut a brand new one within 20 minutes. Arrived within about 40 minutes and was friendly, efficient, and quick.”

Google Review
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Google Guaranteed locksmith review for 2004 Cadillac CTS - EZ Car Keyz Carlsbad CA
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Google Guaranteed locksmith review for 2004 Cadillac CTS - EZ Car Keyz Carlsbad CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Cadillac CTS Mobile Service FAQ

Real costs, no dealer surprises

I lost all my keys to my 2004 Cadillac CTS. Can you still make a replacement?
Yes, all-keys-lost on this generation CTS is something I handle on site. Because there's no working key present, the onboard add-a-key relearn isn't available, so I use programming equipment to access the vehicle's immobilizer and enroll a fresh transponder key from scratch. That involves security access through the diagnostic port, cutting a blade to your specific vehicle, and completing the immobilizer learn. The old lost keys get wiped out of the system so they can't start the car even if someone finds them. Figure on about 45 to 60 minutes at your location. Dealers on this will tell you to tow the vehicle in, and their turnaround is usually a day or more depending on their schedule. I come to you, no tow needed.
Do I really have to tow my CTS to the dealer if I have no working key?
How long does an all-keys-lost job take on the 2004 CTS?
My 2004 CTS starts and then immediately stalls. Is that the transponder or something else?
Can I program a second key myself if I already have one working key?
Questions? Call (619) 876-1271

Cadillac CTS Key Service Areas

Full coverage, zero hassle

📍San Diego County
San Diego County service area map
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San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
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