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Fast Response Locksmith

2015 Cadillac ATS
Key Replacement - Save vs Dealer in Ventura County

No Delays | No Runaround

Available
2015 Cadillac ATS Smart Key
Smart Key

Don't wait 3-5 business days at the dealership. EZ Car Keyz gets you back on the road fast. We arrive quickly and have your new key working before your coffee gets cold.

CA BSIS LICENSE LCO#6792
Immediate Response Done While You Wait No Multi-Day Wait
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
2015 Cadillac ATS lost key replacement options from EZ Car Keyz Santa Barbara CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2015 Cadillac ATS lost key replacement options from EZ Car Keyz Santa Barbara CA
Key specialists
15-25 Min Arrival
Our mobile unit is dispatched immediately
Fixed pricing
No Appointment Needed
Walk-up service available 7 days a week
Fast mobile service
Quick Turnaround
Most keys completed in under 45 minutes on-site
805 Special
10% OFFCODE:EZ-805-2026

🔥 Back on the road fast, for less 🔥

Get your key & your discount fast
REDEEM (805) 790-8162

2015 Cadillac ATS
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Cadillac key typeMost Popular
2015 Cadillac ATS Smart Key HYQ2AB
FCC IDHYQ2ABPart #13580811Buttons5BatteryCR2032Frequency315 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2015 Cadillac ATS Smart Key HYQ2EB
FCC IDHYQ2EBPart #13598538Buttons5BatteryCR2032Frequency433 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2015 Cadillac ATS Smart Key HYQ2AB
FCC IDHYQ2ABPart #13510253Buttons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2015 Cadillac ATS Smart Key
FCC IDPart #20765513ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2015 Cadillac ATS replacement key fob with no original from EZ Car Keyz Santa Barbara CA
Skip the Dealer Markup
Professional key, honest rate
2015 Cadillac ATS replacement key fob with no original from EZ Car Keyz Santa Barbara CA
🔧 PRO TIP
The 2015 ATS runs the same HYQ2AB five-button proximity fob as the CTS and XTS from that era. ID46 chip, CR2032 battery, HU100 emergency blade. GM lets you register up to eight smart keys to one vehicle. A weak CR2032 will throw "No Remote Detected" on the DIC before the fob actually dies, and the passive entry range shrinks to almost nothing. Swap the battery first, but seat it flat. A cockeyed CR2032 mimics a dead fob perfectly.
Related services: Ignition Repair · Smart Key

Cadillac Key: Same-Day vs Dealer Timeline

Speed matters - see the numbers

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
Same-day service vs dealer wait times
Book Service (805) 790-8162

2015 Cadillac ATS Smart Key Replacement - Fast, Affordable & Professional

Out in the Alta Mesa area of Santa Barbara, a guy with a 2015 Cadillac ATS had zero keys. Push-to-start, no backup key slot, nothing. His family was waiting and the car was just sitting there like a locked safe.

He had already called the Cadillac dealer. They told him tow it in, leave it for a couple days, and they would order a fob. He called me instead.

I drove out and got to work on the hood. All-keys-lost on these second-gen ATS models means going through the body control module. The BCM on this platform holds the key registration data, and when every fob is gone, the car has no way to wake up through normal channels. I connected my ACDP to read the EEPROM as a backup, then ran the AKL procedure through the OBD port. The module accepted the reset, old key data wiped, new HYQ2AB registered clean.

Cut the HU100 emergency blade on site, tested passive entry on all four doors plus the trunk, ran the push-button start twice cold. Everything worked.

He stood there watching the car idle and said, "I thought this was a dealer thing." That is the line I hear most on Cadillac jobs. People assume the luxury badge means dealer-only. It does not. It means the right tool and current software. The car does not care who holds the laptop.

He was back on the road in under an hour, for a fraction of what the dealer quoted him.

Save vs the Dealer on Your Cadillac ATS 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: Downtown Santa Barbara · Eastside Sb · Funk Zone · Hope Ranch

Cadillac ATS Rapid Response, Done Right

Rapid response in the field

Lost 2015 Cadillac ATS key replacement by EZ Car Keyz in Santa Barbara CA
Smart Key | Rapid On-Site Service
2015 Cadillac ATS | Ventura County
Lost 2015 Cadillac ATS key replacement by EZ Car Keyz in Santa Barbara CA
2015 Cadillac ATS Smart Key
2015 Cadillac ATS
Smart Key | Done in Minutes
Estimated arrival time to Santa Barbara
Fast Dispatch
Rapid Arrival
Available Today
Service location Santa Barbara
Santa Barbara
Rapid Service Zone
805 Area
Same-Day Keys (805) 790-8162

Fast Keys, Happy Customers

Quick service that speaks for itself

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
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
Watch real savings, real jobs62KFollowers
Customer review after losing 2015 Cadillac ATS key - EZ Car Keyz Santa Barbara CA
“Real savings, real reviews.”
Customer review after losing 2015 Cadillac ATS key - EZ Car Keyz Santa Barbara CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Cadillac ATS Mobile Service FAQ

Real costs, no dealer surprises

I lost all the keys to my 2015 Cadillac ATS. Can you make a new smart key without the dealer?
Yep. All-keys-lost on the 2015 ATS is a standard field job for us. The BCM needs to be accessed and the old key data cleared before a new HYQ2AB fob can register. I read the EEPROM as a safety backup, run the AKL sequence through OBD, program the new fob, and cut the HU100 emergency insert blade on site. Any previously registered fobs get erased so they cannot start the car. The whole thing takes roughly 30 to 50 minutes depending on module response. No tow truck, no leaving the car at a shop for days.
Is a mobile locksmith cheaper than the Cadillac dealer for ATS key replacement?
Does your price include cutting and programming, or are those separate charges?
My 2015 ATS says "No Remote Detected" but the fob battery is new. What is going on?
Can I program a replacement ATS smart key myself at home?
Questions? Call (805) 790-8162

Cadillac ATS Key Service Areas

No delays, any service area

📍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
Emergency 2015 Cadillac ATS locksmith service area in Santa Barbara County CA
Emergency 2015 Cadillac ATS locksmith service area in Santa Barbara County CA
Stranded in Ventura County? We respond fast

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Cadillac ATS car key replacement video
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Quick 2015 Cadillac ATS Key Service

Time matters when you need a key. We treat every call as urgent and arrive ready to work.

Lost your 2015 Cadillac ATS key? Call EZ Car Keyz Santa Barbara CA now
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Ventura County