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

2009 Cadillac STS
Proven Professional Key Replacement in Ventura County

Background Checked | Fully Bonded

Available Wednesday
2009 Cadillac STS Smart Key
Smart Key
2009 Cadillac STS Transponder
Transponder

CA BSIS LICENSE LCO#6792
Certified Pros Insured Service Proven Record
Fast Response15-25
min arrival
1,000+reviews
175K+ followers can't be wrong113KSubscribers
EZ Car Keyz mobile locksmith technician

Marco Levy • EZ Car Keyz 🔥

Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Key specialists
Fully Insured
Liability coverage and background-checked technicians
Fixed pricing
On-Site Key Cutting
New key cut from vehicle codes, not from a copy
Fast mobile service
Half the Dealer Cost
Why pay $400+ when the same key is $149-$249?
805 Special
10% OFFCODE:EZ-805-2026

🔥 1,000+ reviews, save on yours 🔥

Trusted service with built-in savings
REDEEM (805) 790-8162

2009 Cadillac STS
Key Options

The credentials to back up every job

Push To Start
Most popular Cadillac key typeMost Popular
2009 Cadillac STS Smart Key M3N5WY7777A
FCC IDM3N5WY7777APart #25943676Buttons5BatteryCR2032Frequency315 MHzRemote Start✓ Yes
✓ In Stock · Programmed On-Site
Transponder Key
More affordable Cadillac key optionCheaper
2009 Cadillac STS Transponder Key B111-PT
Key BlankB111-PT
✓ In Stock · Programmed On-Site
Mechanical Key
Affordable Cadillac key blankBudget
Waterproof surf key for Cadillac STSSurf Key
2009 Cadillac STS Mechanical Key EK-EM5382
Key BlankEK-EM5382TypeEmergency BladePart #25995382
✓ In Stock · Cut On-Site
EZ Car Keyz technician holding a programmed car key
Verified & Reviewed
15+ years of trusted service
🔧 PRO TIP
On 2020 and newer Cadillacs, some key learn events include an additional 2-hour security timer on top of the normal immobilizer learn. If your locksmith's programming seems to take longer than expected, that timer is likely running. Interrupting it will cause the learn to fail.

No Spare? See the Difference

Emergency options side by side

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
Lost all your keys? No tow truck needed
SOS Call (805) 790-8162

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

I got a call from a customer at a Cadillac owners meetup near Simi Valley Dog Park. He'd already gotten burned once. He called one of those $49 Google ads for his 2009 Cadillac STS, the locksmith showed up and charged $520, and the smart key only partially worked. It would lock the doors but push-to-start was intermittent. He found me through Google Guaranteed and the first thing he asked was how he could verify I was legit before spending more money. Fair question.

I gave him my BSIS license number right on the phone, LCO#6792. He looked it up on the state website while we were still talking. I'm also NASTF certified, which means I have access to factory security data that unlicensed operators can't touch. I told him I'd fix what the other locksmith messed up and he'd pay what I quoted, nothing more.

I used my Smart Pro to reprogram his fob with the correct GM security sequence. His smart key, FCC ID M3N5WY7777A, came back with all 5 buttons working plus clean push-to-start. It came out to 291, exactly what I quoted on the phone. Dealer wanted 542 for the same job, and the scam locksmith charged more than both of us and couldn't even finish it.

Trusted Cadillac STS Key Replacement

Your car is in the hands of a certified professional. Every job is insured and guaranteed.

Call Experts (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

Dealer Quality, Better Price

Quality work, no dealer tax

2009 Cadillac STS key replacement - EZ Car Keyz
Smart key | Quality Key, Better Price
2009 Cadillac STS | Ventura County
2009 Cadillac STS Smart key
2009 Cadillac STS
Smart key | Best Rate
Estimated arrival time to Simi Valley
30-35 min
Free Mobile ETA
Available Today
Service location Simi Valley
Simi Valley
Local Pro
805 Area
Free Quote (805) 790-8162

Proven by 1,000+ Cadillac Customers

Proven by reviews, backed by licenses

M
Miston
Dec 2025
★★★★★

“My ignition would not turn in La Jolla and I thought I needed a tow. EZ Car Keyz repaired the ignition on the spot and also made a spare key for safety. The technician worked carefully and confidently.”

Google 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
J
Jennifer R.
Feb 2024
★★★★★

“The dealership quoted me $600 for a new Honda key. EZ Car Keyz did it for $225, same day, cut and programmed at my house. Works perfectly. Everyone should know this is an option.”

Yelp Review
Watch the work before you call62KFollowers
EZ Car Keyz technician with satisfied customer
“Real credentials, real trust.”
5.0 out of 5 - Based on 1,000+ Google Reviews
Book A Pro (805) 790-8162

Emergency Situation FAQ

What to expect when we arrive

I lost all my Cadillac keys. Can you still make a new one?
Yes. All-keys-lost is one of the most common calls we get, and we handle it on site for most Cadillac models. The process involves resetting the GM theft deterrent system, performing a BCM security access and immobilizer learn, cutting a new key, and programming everything fresh. Cadillac owners who call the dealer for an AKL job get quoted $540 to $800 or more and are told to tow the vehicle in. One ATS-V owner was quoted "$540 plus gotta tow the car there." We come to you and do the same job at your location for significantly less. On some very new models, NASTF credentials are required, and we have them.
Do I need to tow my car to the dealer if I have no keys?
How long does an all-keys-lost replacement take?
What battery does the 2009 Cadillac STS key fob use?
Can you make a spare at the same time so I have two keys?
Questions? Call (805) 790-8162

Cadillac STS Key Service Areas

Same-day service, every location

📍Ventura County & SB
EZ Car Keyz service area - Ventura County & SB
Fast keys anywhere in Ventura County

Same-day service available in all listed cities

Same-Day Keys (805) 790-8162

Trusted Cadillac STS Key Replacement

Your car is in the hands of a certified professional. Every job is insured and guaranteed.

EZ Car Keyz mobile locksmith van
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
Find Us