VENTURA COUNTY
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2008 Cadillac STS
Key Replacement - Save vs Dealer in Ventura County

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Available
2008 Cadillac STS Smart Key
Smart Key

Licensed by the California BSIS, NASTF certified, Google Guaranteed, and backed by over 1,000 five-star reviews. When you call EZ Car Keyz, you're getting a verified professional.

CA BSIS LICENSE LCO#6792
CA State Licensed Verified Creds Fully Insured
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Professional 2008 Cadillac STS locksmith quote from EZ Car Keyz Simi Valley CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Professional 2008 Cadillac STS locksmith quote from EZ Car Keyz Simi Valley CA
Key specialists
Google Guaranteed
Passed Google's screening and verification process
Fixed pricing
Fully Insured
Liability coverage and background-checked technicians
Fast mobile service
8+ Years in Business
Over 10,000 keys made across the region
805 Special
10% OFFCODE:EZ-805-2026

🔥 Trusted by thousands, save today 🔥

Covers all NASTF-certified key work
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2008 Cadillac STS
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Cadillac key typeMost Popular
2008 Cadillac STS Smart Key M3N5WY7777A
FCC IDM3N5WY7777APart #25943676Buttons5BatteryCR2032Frequency315 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Transponder Key
2008 Cadillac STS Transponder Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2008 Cadillac STS Smart Key
FCC IDPart #25995382ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Professional 2008 Cadillac STS key programming by EZ Car Keyz Simi Valley CA
Skip the Dealer Markup
Professional key, honest rate
Professional 2008 Cadillac STS key programming by EZ Car Keyz Simi Valley CA
🔧 PRO TIP
The 2008 STS smart key (FCC ID M3N5WY7777A, part 25943676) runs GM's passlock-evolved PK3+ theft deterrent through the Body Control Module. The five-button fob has a hidden emergency blade inside for the driver door and column lock. A weak CR2032 throws "No Remote Detected" on the DIC, and the keyless start range shrinks down to almost nothing before it fully dies. Swap the CR2032 first, but make sure the battery sits flat against both contacts. A cockeyed cell mimics a dead fob perfectly.
Related services: Ignition Repair · Smart Key

Who Do You Trust With Your Key?

Verified reviews, verified licenses - compare

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
Licensed, insured, and 1000+ five-star reviews
Book Service (805) 790-8162

2008 Cadillac STS Smart Key Replacement - Fast, Affordable & Professional

A woman near Hummingbird Trailhead in Simi Valley told me she'd checked my license before calling. Her last locksmith had no BSIS number on the receipt, no company name, and a phone number that quit working a week later. She needed a spare smart key for her 2008 Cadillac STS and was not making that mistake twice.

I showed her my BSIS license, LCO 6792, before I even opened the toolbox. That number is public record on the state website. Anyone can look it up.

NASTF certification matters on GM vehicles because it gives me access to factory security data through legitimate channels. When I program an M3N5WY7777A through my ACDP, the data path goes through the proper security protocol to the BCM. No workarounds, no leftover DTCs sitting in the module. Her STS accepted the new fob on the first handshake, all five buttons tested clean, and the keyless start fired with no hesitation.

She watched the whole thing from about four feet away, leaning on the fender. When I handed her the spare, she turned it over a couple times like she was inspecting it, then just said, "This is a real receipt, right?" I pointed at the license number printed on it. Same one on the van. Same one on the state database.

The dealer had quoted her more, with a two-week wait for the appointment. She drove away in about 35 minutes.

Save vs the Dealer on Your Cadillac STS 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
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
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Also serving: Big Sky · Bridle Path · Corriganville · East Simi Valley

Cadillac STS Rapid Response, Done Right

Rapid response in the field

Certified auto locksmith servicing 2008 Cadillac STS in Simi Valley CA
Smart Key | Rapid On-Site Service
2008 Cadillac STS | Ventura County
Certified auto locksmith servicing 2008 Cadillac STS in Simi Valley CA
2008 Cadillac STS Smart Key
2008 Cadillac STS
Smart Key | Pro Grade Service
Estimated arrival time to Simi Valley
Proven Timing
Rapid Arrival
Available Today
Service location Simi Valley
Simi Valley
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Licensed, Certified, and Reviewed

Trusted and verified by real customers

J
Joseph C.
Apr 2024
★★★★★

“I needed two keys made for my Honda Element. Friendly, fast, fair pricing, and far better than any other locksmith I have used in the area. Best service by far.”

Yelp Review
P
Priscilla L.
May 2025
★★★★★

“I lost my Honda Passport key and called EZ Car Keyz. He came out and made a new key in under five minutes. Legendary service.”

Google Review
D
Dan G.
Mar 2024
★★★★★

“They responded instantly, showed up within an hour, and arrived exactly when they said they would. Made a copy and programmed a fob for my 2014 car with a worn ignition in about 15 minutes. The new key works perfectly and feels like a dealer key.”

Yelp Review
Watch real savings, real jobs62KFollowers
Certified locksmith review for 2008 Cadillac STS service by EZ Car Keyz Simi Valley CA
“Real savings, real reviews.”
Certified locksmith review for 2008 Cadillac STS service by EZ Car Keyz Simi Valley CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Cadillac STS Mobile Service FAQ

Real costs, no dealer surprises

My key broke inside the ignition of my 2008 STS. Can you get it out?
Yep. Broken key extraction is a standard call for us. I use thin extractor picks designed for the GM sidebar lock cylinder to pull the broken piece without scoring the wafers. Once it is out, I can cut a new emergency blade from the extracted fragment or decode the lock directly. Then I program the full smart key on site. The whole thing usually runs about 30 to 45 minutes depending on how deep the break sits in the cylinder.
What exactly is the smart key system on my 2008 Cadillac STS?
My 2008 STS dash says "No Remote Detected." What should I try?
Can I program a new smart key fob to my 2008 STS myself?
My 2008 STS sometimes won't crank and the theft light stays on. Is my smart key bad?
Questions? Call (805) 790-8162

Cadillac STS Key Service Areas

Background checked and bonded everywhere

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
Certified 2008 Cadillac STS locksmith coverage in Ventura County CA
Certified 2008 Cadillac STS locksmith coverage in Ventura County CA
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Guaranteed 2008 Cadillac STS key service by EZ Car Keyz Simi Valley CA
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