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

2007 Mazda 3
Key Replacement - Save vs Dealer in Ventura County

No Appointments | No Waiting Rooms

Available
2007 Mazda 3 Transponder Key
Transponder Key

Our fully-equipped mobile unit comes directly to your home, office, or wherever you are. No towing, no waiting rooms, no rearranging your day. We handle everything on-site.

CA BSIS LICENSE LCO#6792
We Bring the Shop No Dealer Visit Roadside OK
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
2007 Mazda 3 lost key replacement options from EZ Car Keyz Simi Valley CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2007 Mazda 3 lost key replacement options from EZ Car Keyz Simi Valley CA
Key specialists
Mobile Service
Our van carries everything - no shop visit needed
Fixed pricing
On Your Schedule
Same-day appointments, 7 days a week
Fast mobile service
One-Visit Solution
Key cut and programmed in a single visit
805 Special
10% OFFCODE:EZ-805-2026

🔥 No towing, no hassle, just savings 🔥

Good for any on-site key service
REDEEM (805) 790-8162

2007 Mazda 3
Key Options

Dealer-grade key for a fair, honest price

Transponder Key
Most popular Mazda key typeMost Popular
2007 Mazda 3 Transponder Key
FCC IDPart #MAZ-CAN80-KEYButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2007 Mazda 3 Remote KPU41794
FCC IDKPU41794Part #4238A-41846Buttons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
MECHANICAL-KEY
2007 Mazda 3 MECHANICAL-KEY
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2007 Mazda 3 replacement key fob with no original from EZ Car Keyz Simi Valley CA
Skip the Dealer Markup
Professional key, honest rate
2007 Mazda 3 replacement key fob with no original from EZ Car Keyz Simi Valley CA
🔧 PRO TIP
The 2007 Mazda 3 runs a Texas Instruments TI 4D-63 (80-bit) transponder chip in a mechanical key blade, profile MAZ24. No remote buttons, no battery, just a chip embedded in the key head. If you have one working key and want a spare, the car supports up to eight key registrations through the immobilizer module (part number GS1D-67-5RZA on most trims). A second key now saves you from an all-keys-lost job later, which takes longer and costs more.
Related services: Ignition Repair · Smart Key

Mazda 3 Key: Mobile vs Dealership

Two options, one clear winner

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
Your driveway beats their waiting room
Book Service (805) 790-8162

2007 Mazda 3 Transponder Key Replacement - Fast, Affordable & Professional

Near Rancho Tapo Community Park in Simi Valley, an Uber driver flagged me down from a frontage road pulloff. His 2007 Mazda 3 had a broken key stuck in the driver door lock. The blade snapped clean off from years of heavy use, left the head in his hand and the rest jammed in the cylinder.

He had already called another locksmith. That guy told him the lock needed to be drilled out, new cylinder, new key, the whole deal. Destructive entry on a door lock that was working fine ten minutes earlier.

I started by pulling the transponder data off the broken key head with my VVDI2. The 4D-63 80-bit chip was still intact inside the plastic shell. Then I used my MAZ24 Lishi tool to grab the broken blade fragment out of the lock without scratching the wafer surfaces. Once the fragment was out, I decoded all the wafers in position and cut a fresh MAZ24 blade to the exact depths.

Transplanted the original chip into a new key shell, tested the immobilizer, engine fired right up. The lock cylinder went back to working like nothing happened.

No drilling. No new cylinder. No tow to the dealer. He was back picking up rides in about 40 minutes. The other locksmith's quote would have been triple what I charged and left him with a replaced lock he never needed replacing.

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

Lost 2007 Mazda 3 key replacement by EZ Car Keyz in Simi Valley CA
Transponder Key | Rapid On-Site Service
2007 Mazda 3 | Ventura County
Lost 2007 Mazda 3 key replacement by EZ Car Keyz in Simi Valley CA
2007 Mazda 3 Transponder Key
2007 Mazda 3
Transponder Key | Made at Your Door
Estimated arrival time to Simi Valley
We Come to You
Rapid Arrival
Available Today
Service location Simi Valley
Simi Valley
We Come Here
805 Area
Same-Day Keys (805) 790-8162

Home Service, Honest Reviews

What no-hassle service sounds like

Z
Zebadiah A.
Oct 2025
★★★★★

“Super fast service. About 20 minutes from the call he was already there. He had an authentic replacement on hand and made a spare key for my 2017 Nissan Rogue in about 15 minutes. Great prices, friendly, and very professional.”

Google Review
D
Diya M.
Jan 2025
★★★★★

“Fast, affordable, and a great price. Marco did an amazing job and made a key for our Nissan Kicks quickly and professionally. Everything worked perfectly.”

Google Review
E
Edelson E.
Oct 2025
★★★★★

“I got locked out of my vehicle and also lost my key. Marco came out, made a new key for my Toyota, and got me back on the road. He was professional, friendly, and clearly knows what he is doing.”

Google Review
Watch real savings, real jobs62KFollowers
Customer review after losing 2007 Mazda 3 key - EZ Car Keyz Simi Valley CA
“Real savings, real reviews.”
Customer review after losing 2007 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

How does a 2007 Mazda 3 replacement key work if I lost all my keys?
All-keys-lost on the first-gen Mazda 3 (BK series) means I need to pull the immobilizer data from the PCM to generate a new key. The 2007 uses a Mitsubishi-sourced immobilizer tied to the engine control module. I connect through the OBD-II port, read the security data, program a fresh 4D-63 80-bit transponder chip, and cut a new MAZ24 blade either by code or by decoding the door or ignition lock. The old lost keys get wiped from the system so they can no longer start the car. Takes about 30 to 50 minutes depending on access conditions. One price covers everything: blank, cut, programming, and the trip to you.
Is a mobile locksmith cheaper than the Mazda dealer for a 2007 Mazda 3 key?
Does your price include cutting and programming the transponder for my 2007 Mazda 3?
My 2007 Mazda 3 cranks but won't start and the immobilizer light is blinking. What's going on?
Can I buy a 2007 Mazda 3 transponder key online and program it myself?
Questions? Call (805) 790-8162

Mazda 3 Key Service Areas

We cover your 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 2007 Mazda 3 locksmith service area in Ventura County CA
Emergency 2007 Mazda 3 locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

Don’t see your city? Call us - we likely cover your area too!

SOS Call (805) 790-8162
Filmed on Location
Mazda 3 car key replacement video
113K+ Chose EZ Car Keyz

We Bring the Key to You

We bring the entire shop to your location. Every tool, every blank, every piece of equipment.

Lost your 2007 Mazda 3 key? Call EZ Car Keyz Simi Valley CA now
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
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Car Key
Ventura County