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

2005 Mazda 3
Key Replacement - Save vs Dealer in Ventura County

Lost Every Key? | We Start From Scratch

Available
2005 Mazda 3 Transponder Key
Transponder 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
Locked Out? No Stress Keys From Zero Fast Response
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Stranded without a 2005 Mazda 3 key? EZ Car Keyz Simi Valley CA can help
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Stranded without a 2005 Mazda 3 key? EZ Car Keyz Simi Valley CA can help
Key specialists
Zero Keys Needed
We program directly to your vehicle's computer
Fixed pricing
On-Site Key Cutting
New key cut from vehicle codes, not from a copy
Fast mobile service
Fast Recovery
Back on the road in 30-45 minutes from arrival
805 Special
10% OFFCODE:EZ-805-2026

🔥 Rescue key service, 10% off 🔥

Covers lockouts, lost keys & spares
REDEEM (805) 790-8162

2005 Mazda 3
Key Options

Dealer-grade key for a fair, honest price

Transponder Key
Most popular Mazda key typeMost Popular
2005 Mazda 3 Transponder Key
FCC IDPart #MAZ-CAN80-KEYButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2005 Mazda 3 Remote KPU41846
FCC IDKPU41846Part #BN8P-67-5RYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
MECHANICAL-KEY
2005 Mazda 3 MECHANICAL-KEY
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Emergency 2005 Mazda 3 key fob made from scratch by EZ Car Keyz Simi Valley CA
Skip the Dealer Markup
Professional key, honest rate
Emergency 2005 Mazda 3 key fob made from scratch by EZ Car Keyz Simi Valley CA
🔧 PRO TIP
The 2005 Mazda 3 runs a Texas Instruments 4D63 (40-bit) transponder chip in a mechanical key blade, part of Mazda's first-gen immobilizer system. No remote head, no push-button start. Just a transponder embedded in the key bow. The blank is an MAZ24-PT, cut to the MAZ24 keyway. If you have one working key, a spare can be added through the OBD-II port in about ten minutes. All keys lost is a different story: the immobilizer module needs a full reset before it will accept new transponder IDs. Always get a spare made while your first key still works.
Related services: Ignition Repair · Smart Key

Lost Mazda Key: Tow vs Mobile Fix

Stranded? Compare response times

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

2005 Mazda 3 Transponder Key Replacement - Fast, Affordable & Professional

A pharmacy tech called me from a strip mall lot near Hummingbird Trailhead in Simi Valley around 9:45 at night. Closing shift, dark parking lot, and her only key to her 2005 Mazda 3 was gone. Checked her scrub pockets, the store, the lot. Nothing.

She didn't have her registration on her and couldn't remember what a VIN was. I talked her through it on the phone. Told her to look through the windshield at the base of the glass on the driver side. She found it with her phone flashlight. Then I had her check her insurance app, and sure enough the registration was saved there too.

With the VIN I already knew what I was walking into: first-gen BK Mazda 3, 4D63 40-bit transponder, MAZ24 keyway. I grabbed the right blank and prepped before leaving.

On site, I decoded the lock, cut the key on my mobile machine, then ran the all-keys-lost procedure through the OBD-II port with my IM508S. The 4D63 chip registered clean. She sat on a parking curb watching me work under the lights and got noticeably calmer once the engine turned over on the first try.

She drove home that night. The dealer would have meant a tow, a wait until morning, and a bill that would have stung a lot harder. The VIN is the single most useful thing you can give me. Text it before I arrive.

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

All keys lost service for 2005 Mazda 3 by EZ Car Keyz Simi Valley CA
Transponder Key | Rapid On-Site Service
2005 Mazda 3 | Ventura County
All keys lost service for 2005 Mazda 3 by EZ Car Keyz Simi Valley CA
2005 Mazda 3 Transponder Key
2005 Mazda 3
Transponder 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

Lockout to Five-Star Review

Lost key panic turned to five-star praise

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
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
Watch real savings, real jobs62KFollowers
Locked out rescue review for 2005 Mazda 3 - EZ Car Keyz Simi Valley CA
“Real savings, real reviews.”
Locked out rescue review for 2005 Mazda 3 - 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

What is the cheapest way to replace my 2005 Mazda 3 key?
Call a mobile locksmith before you call the dealer. Mazda dealers typically quote well over double what I charge for a single transponder key, and that's before the tow if the car won't start. With me, you get the MAZ24 blank cut, the 4D63 transponder programmed, and the key verified on site. One trip, one price, no separate line items. The 2005 Mazda 3 is a straightforward transponder system, so there's no reason to pay dealer-level money for it.
How much more does an all-keys-lost job cost compared to adding a spare?
Do aftermarket transponder keys work on the 2005 Mazda 3?
My 2005 Mazda 3 cranks but won't start and the immobilizer light is blinking. What's going on?
Can I program a new transponder key for my 2005 Mazda 3 myself?
Questions? Call (805) 790-8162

Mazda 3 Key Service Areas

Stranded in any city? We come to you

📍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
Lockout rescue coverage for 2005 Mazda 3 in Ventura County CA
Lockout rescue coverage for 2005 Mazda 3 in Ventura County CA
Stranded in Ventura County? We respond fast

Lost your keys? We’ll come to wherever the car is

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

Every Mazda 3 Key Lost? We Handle It

Lost your only key? Don't panic. We specialize in all-keys-lost and arrive ready to program.

Locked out of your 2005 Mazda 3? Get help from EZ Car Keyz Simi Valley CA
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
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Ventura County