VENTURA COUNTY
6AM - 11:30PM • MOBILE SERVICE •
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Fast Response Locksmith

2012 Mazda 3
Key Replacement - Save vs Dealer in Ventura County

Fast Response | 15-25 Min Arrival

Available
2012 Mazda 3 Smart Key
Smart Key

Time matters when you need a car key. Our technicians are dispatched quickly with everything needed to cut and program your replacement key on the spot. No delays, no runaround.

CA BSIS LICENSE LCO#6792
15-25 Min Arrival Key Done Fast No Waiting Days
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
2012 Mazda 3 key fob price quote from EZ Car Keyz Simi Valley CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2012 Mazda 3 key fob price quote from EZ Car Keyz Simi Valley 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

🔥 Same-day key and a discount 🔥

Fast service plus instant discount
REDEEM (805) 790-8162

2012 Mazda 3
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Mazda key typeMost Popular
2012 Mazda 3 Smart Key WAZX1T768SKE11A03
FCC IDWAZX1T768SKE11A03Part #BBY2-67-5RYButtons4BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2012 Mazda 3 Smart Key WAZX1T768SKE11A03
FCC IDWAZX1T768SKE11A03Part #BCY1-67-5RYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote Flip Key
2012 Mazda 3 Remote Flip Key BGBX1T478SKE125-01
FCC IDBGBX1T478SKE125-01Part #BBM4-67-5RYButtons4BatteryCR1616Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote Flip Key
2012 Mazda 3 Remote Flip Key BGBX1T478SKE125-01
FCC IDBGBX1T478SKE125-01Part #CC43-67-5RYCButtons3BatteryCR1616Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
2012 Mazda 3 Transponder Key
FCC IDPart #MAZ-CAN80-KEYButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2012 Mazda 3 Smart Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
MECHANICAL-KEY
2012 Mazda 3 MECHANICAL-KEY
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Discount 2012 Mazda 3 transponder key from EZ Car Keyz Simi Valley CA
Skip the Dealer Markup
Professional key, honest rate
Discount 2012 Mazda 3 transponder key from EZ Car Keyz Simi Valley CA
🔧 PRO TIP
The 2012 Mazda 3 smart key (WAZX1T768SKE11A03) uses a Mitsubishi transponder chip on the Texas Crypto 4D/80-bit protocol. Before you panic over "KEY NOT DETECTED" on the dash, check for aftermarket phone chargers, GPS trackers, or dashcams plugged in near the steering column. Those create enough RF noise to mess with the antenna ring signal. Pull the accessory, swap in a fresh CR2025, and retest. That clears about half the calls I get on these.
Related services: Ignition Repair · Smart Key

One Hour vs One Week

Time is money - see why customers skip the dealer

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
Back on the road before the dealer even calls back
Book Service (805) 790-8162

2012 Mazda 3 Smart Key Replacement - Fast, Affordable & Professional

Got a call one evening from a photographer staying in the Wood Ranch neighborhood in Simi Valley. She was out from the coast for a shoot the next morning and had locked her only smart key inside her 2012 Mazda 3.

She had already called the Mazda dealer. Two business days minimum, plus she would need to get the car towed in. That timeline did not work.

I drove out and met her at the condo. Her key was the WAZX1T768SKE11A03, four-button remote head with the integrated transponder blade, part number BBY2-67-5RY. I got the door open, confirmed the key worked, then talked her into letting me cut a spare while I was there. One key with no backup is a problem waiting to happen.

I pulled the key code, cut the new blade on the van, then connected my IM508S through the OBD port. The 2012 Mazda 3 runs the Mitsubishi immobilizer system, so registration goes through the BCM directly. About fifteen minutes of programming, a walk-around to test all four buttons, lock, unlock, trunk, panic, and verify the engine start.

She held both keys side by side like she was making sure the spare was real.

The whole visit, door opening plus spare key, took under forty-five minutes. The dealer would have needed two days and a flatbed just to get started.

Save vs the Dealer on Your Mazda 3 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

Mazda 3 Rapid Response, Done Right

Rapid response in the field

Low cost 2012 Mazda 3 car key service by EZ Car Keyz Simi Valley CA
Smart Key | Rapid On-Site Service
2012 Mazda 3 | Ventura County
Low cost 2012 Mazda 3 car key service by EZ Car Keyz Simi Valley CA
2012 Mazda 3 Smart Key
2012 Mazda 3
Smart Key | Done in Minutes
Estimated arrival time to Simi Valley
Fast Dispatch
Rapid Arrival
Available Today
Service location Simi Valley
Simi Valley
Rapid Service Zone
805 Area
Same-Day Keys (805) 790-8162

Five Stars for Speed

Fast keys, happy customers

E
Erick
Nov 2025
★★★★★

“A+ service at an even better price. Tim was a lifesaver. I lost my original and only key for my Audi and he was willing to come to my location at 8pm the same day. He worked fast, communicated clearly, and made sure everything worked before leaving.”

Google Review
H
Hunter P.
Jul 2025
★★★★★

“I called over 40 locksmiths trying to get a key made for my Audi A6 and nobody could do it. Tim made it easy, fast, and affordable. He showed up with a smile and got the job done without any stress. Absolute wizard with keys.”

Google Review
E
Esteban S.
Dec 2025
★★★★★

“My Chevy key snapped while I was running errands in North Oxnard. He removed the broken piece from the ignition, cut a new blade, programmed the transponder, and tested everything thoroughly. The whole job was smooth and professional. Best automotive locksmith I have used.”

Google Review
Watch real savings, real jobs62KFollowers
Dealer vs locksmith review for 2012 Mazda 3 key - EZ Car Keyz Simi Valley CA
“Real savings, real reviews.”
Dealer vs locksmith review for 2012 Mazda 3 key - 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

Mazda 3 Mobile Service FAQ

Real costs, no dealer surprises

Do I have to go to the Mazda dealer to get a replacement smart key for my 2012 Mazda 3?
No. The 2012 Mazda 3 uses a Mitsubishi-based immobilizer, and key registration goes through the OBD port via the BCM. Any locksmith with the right diagnostic platform and the correct WAZX1T768SKE11A03 blank can cut and program your key on site. Mazda owners sometimes assume only the dealer can do it because newer Mazdas moved to server-based IMMO, but the 2012 is not on that system. Some dealers actually outsource key work to mobile locksmiths anyway, so you are just cutting out the middleman and the wait.
What does a smart key actually do on my 2012 Mazda 3?
How long does the Mazda dealer take for a key replacement compared to a mobile locksmith?
My 2012 Mazda 3 cranks but will not start after a key battery change. What is going on?
I lost all keys to my 2012 Mazda 3. Can you still make one?
Questions? Call (805) 790-8162

Mazda 3 Key Service Areas

Same-day dispatch across the region

📍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
Low cost 2012 Mazda 3 key replacement area in Ventura County CA
Low cost 2012 Mazda 3 key replacement area in Ventura County CA
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Don't wait days at the dealer. We get you back on the road today. Available 7 days a week.

Save today on 2012 Mazda 3 car key - EZ Car Keyz Simi Valley CA
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