VENTURA COUNTY
6AM - 11:30PM • MOBILE SERVICE •
Call or Text (805) 790-8162
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Fast Response Locksmith

2009 Cadillac STS
Key Replacement - Save vs Dealer in Ventura County

Stranded? | We Come to You Now

Available
2009 Cadillac STS Smart Key
Smart Key

All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

CA BSIS LICENSE LCO#6792
Stolen Key? Covered No Key Required Same-Day Fix
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Certified 2009 Cadillac STS key replacement info from EZ Car Keyz Simi Valley CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Certified 2009 Cadillac STS key replacement info from EZ Car Keyz Simi Valley CA
Key specialists
All Keys Lost?
We make new keys from scratch - no existing key needed
Fixed pricing
No Tow Required
We come to wherever the car is sitting
Fast mobile service
Emergency Service
Available 7 days a week, 6 AM to 11:30 PM
805 Special
10% OFFCODE:EZ-805-2026

🔥 No key, no stress, plus savings 🔥

Lost your only key? Still valid
REDEEM (805) 790-8162

2009 Cadillac STS
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Cadillac key typeMost Popular
2009 Cadillac STS Smart Key M3N5WY7777A
FCC IDM3N5WY7777APart #25943676Buttons5BatteryCR2032Frequency315 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Transponder Key
2009 Cadillac STS Transponder Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2009 Cadillac STS Smart Key
FCC IDPart #25995382ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
OEM quality 2009 Cadillac STS key fob from EZ Car Keyz Simi Valley CA
Skip the Dealer Markup
Professional key, honest rate
OEM quality 2009 Cadillac STS key fob from EZ Car Keyz Simi Valley CA
🔧 PRO TIP
The 2009 Cadillac STS runs a 5-button smart fob on a CR2032. What trips people up is that this fob talks to both the door handle sensors and the ignition system independently. So when one function goes flaky but others still work, the fob itself is usually fine. Before assuming you need a new key, pull the CR2032 and look at the contacts inside the fob housing. The STS fob case has a reputation for cracking at the hinge points, which lets the battery shift just enough to cause intermittent contact. A cracked shell plus a slightly seated battery can read exactly like a failing fob or a deeper security system fault. New CR2032, intact shell, clean contacts. Start there.
Related services: Ignition Repair · Smart Key

Locked Out? Compare the Solutions

All keys lost - two very different solutions

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
All keys lost is no problem for us
Book Service (805) 790-8162

2009 Cadillac STS Smart Key Replacement - Fast, Affordable & Professional

I got a call from a guy parked near the Simi Hills area who had already been through it once with another locksmith. He'd found one of those low-bid ads, the kind with a bait number in the listing, and the tech who showed up charged him way more than quoted and left him with a fob that would lock the doors but behaved inconsistently any time he tried to start the car. He found me through Google Guaranteed and the first thing out of his mouth was how he could verify I was actually licensed before letting me touch the car again.

Completely fair. I gave him my BSIS license number on the phone. He looked it up on the state site while we were still talking. That took maybe two minutes and settled things down.

When I got to him, the situation made sense pretty quickly. The previous guy had partially programmed the fob and left the job in a stuck state. The vehicle security system still had old key data conflicting with the new one, which is exactly why the start behavior was inconsistent. That kind of half-finished job is actually harder to clean up than a fresh all-keys-lost, because you're working around someone else's incomplete write.

I sorted it out with the right GM-capable programming tool, ran the full enrollment sequence, verified all five buttons, and walked him through the door handles and ignition one at a time so he could see everything working before I closed up. He paid exactly what I quoted on the phone. The dealer had quoted him nearly double that just for the programming portion, and they wanted the car towed in on top of it.

He wasn't even that upset about the money at that point. He was just tired of explaining the problem to people who didn't already know what they were looking at.

Save vs the Dealer on Your Cadillac STS Key

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

Get Pricing (805) 790-8162 Text Us
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
Verified & backed by Google
Also serving: Big Sky · Bridle Path · Corriganville · East Simi Valley

Cadillac STS Rapid Response, Done Right

Rapid response in the field

Licensed locksmith replacing 2009 Cadillac STS key in Simi Valley CA
Smart Key | Rapid On-Site Service
2009 Cadillac STS | Ventura County
Licensed locksmith replacing 2009 Cadillac STS key in Simi Valley CA
2009 Cadillac STS Smart Key
2009 Cadillac STS
Smart Key | Rescue Key
Estimated arrival time to Simi Valley
Priority ETA
Rapid Arrival
Available Today
Service location Simi Valley
Simi Valley
Help Is Close
805 Area
Same-Day Keys (805) 790-8162

Five Stars From Rescued Cadillac Drivers

Reviews from customers we rescued

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
T
TJ P.
Jun 2025
★★★★★

“About 15 minutes after calling, he was already at my home. I had lost my original Ford key and he made and programmed a new one on the spot. Very fast, very professional.”

Google Review
Watch real savings, real jobs62KFollowers
5-star review of 2009 Cadillac STS key service by EZ Car Keyz Simi Valley CA
“Real savings, real reviews.”
5-star review of 2009 Cadillac STS key 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

I lost all my keys to my 2009 Cadillac STS. Can you still make a new one?
Yes. All-keys-lost on the 2009 STS is a standard job. The process involves clearing the existing key data from the vehicle security system, programming the replacement fob through the diagnostic port, and making sure the ignition recognizes the new key before I close out the job. The old missing fobs get wiped so they can't be used to start the car. Dealers will quote you a significant amount for this and typically require the car to be towed to them. We come to you in Simi Valley and handle it on site. If you're in the Simi Hills area, I can usually give you a same-day window.
Do I need to tow my 2009 STS to the dealer if I have no working keys?
How long does an all-keys-lost job take on the 2009 Cadillac STS?
My 2009 STS fob range got really short all of a sudden. Is the fob dying or is something else going on?
I bought a replacement fob online for my 2009 STS. Can I program it myself?
Questions? Call (805) 790-8162

Cadillac STS Key Service Areas

Emergency dispatch to your location

📍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
Licensed 2009 Cadillac STS locksmith service area in Ventura County CA
Licensed 2009 Cadillac STS locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

Emergency service available in all listed cities

SOS Call (805) 790-8162
Filmed on Location
Cadillac STS car key replacement video
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Stranded Without a Cadillac STS Key?

Emergency all-keys-lost service available 7 days a week. We bring everything to your location.

Trusted 2009 Cadillac STS locksmith service by EZ Car Keyz Simi Valley CA
Need a key?
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Ventura County