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Fast Response Locksmith

2016 Mazda CX-3
Key Replacement - Save vs Dealer in San Diego

Google Guaranteed | Background Checked

Available
2016 Mazda CX-3 Smart Key
Smart Key

With 100+ verified Google reviews and every major industry certification, EZ Car Keyz is the locksmith trusted by families, businesses, and fleet managers throughout the area.

CA BSIS LICENSE LCO#6792
CA State Licensed Verified Creds Fully Insured
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
Stranded without a 2016 Mazda CX-3 key? EZ Car Keyz El Cajon CA can help
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Stranded without a 2016 Mazda CX-3 key? EZ Car Keyz El Cajon CA can help
Key specialists
Google Guaranteed
Passed Google's screening and verification process
Fixed pricing
Fully Insured
Liability coverage and background-checked technicians
Fast mobile service
8+ Years in Business
Over 10,000 keys made across the region
619 Special
10% OFFCODE:EZ-619-2026

🔥 Trusted by thousands, save today 🔥

Covers all NASTF-certified key work
REDEEM (619) 876-1271

2016 Mazda CX-3
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Mazda key typeMost Popular
2016 Mazda CX-3 Smart Key WAZSKE13D01
FCC IDWAZSKE13D01Part #KDY3-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2016 Mazda CX-3 Smart Key WAZSKE13D02
FCC IDWAZSKE13D02Part #KD33-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Key
2016 Mazda CX-3 Key WAZSKE13D02
FCC IDWAZSKE13D02Part #KDY3-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2016 Mazda CX-3 Smart Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Metal Key
2016 Mazda CX-3 Metal Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Emergency 2016 Mazda CX-3 key fob made from scratch by EZ Car Keyz El Cajon CA
Skip the Dealer Markup
Professional key, honest rate
Emergency 2016 Mazda CX-3 key fob made from scratch by EZ Car Keyz El Cajon CA
🔧 PRO TIP
The 2016 CX-3 smart key runs a CR2025 cell, not the CR2032 that fits half the other fobs in your junk drawer. Easy to mix up. A dying CR2025 on these will show up as reduced range first, then intermittent door handle touch unlock, then the push-button start throwing a key-not-detected warning even with the fob sitting right on the center console. Before assuming the fob or the immobilizer is the problem, pull the back of that fob and confirm you have the right battery seated flat with clean contact. The fob housing on this key clips together tightly, and people crack the case prying it wrong. Thin coin in the seam, not a screwdriver.
Related services: Ignition Repair · Smart Key

Who Do You Trust With Your Key?

Verified reviews, verified licenses - compare

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
Google Guaranteed with NASTF certification
Book Service (619) 876-1271

2016 Mazda CX-3 Smart Key Replacement - Fast, Affordable & Professional

Out in Fletcher Hills, over off Navajo Road, I got a call around 11 at night from a woman who worked overnight ER shifts. She was home between shifts, not at the hospital, which was the only thing that went right that evening.

Her only smart key had stopped being recognized. The CX-3 was sitting in the garage and she could not get it to acknowledge the fob at all. Push the button, nothing. Touch the door handle, nothing. She told me she had already tried holding the fob against the start button, which is actually the right instinct on these when the battery is nearly dead, and even that did not work. She figured a tow to the dealer was the only move and started looking up numbers.

I told her to wait.

When I pulled up, I connected to the OBD port and ran the all-keys-lost procedure for this system. There is a timed security delay built into the process, so I set the equipment going and we stood in the garage while it counted down. She asked me twice if it was supposed to take that long. It was. Once the module reset completed, I registered two new fobs, tested the push-button start, walked both door handles, and ran the lock and unlock functions before I packed anything up.

The whole thing was done before midnight. She made her shift. The dealer conversation never came up again except when she mentioned what she had been quoted on the phone before she called me. My price was a fraction of what they wanted, and I came to her.

Save vs the Dealer on Your Mazda CX-3 Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

Get Pricing (619) 876-1271 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: Bostonia · Crest · Downtown El Cajon · Fletcher Hills

Mazda CX-3 Rapid Response, Done Right

Rapid response in the field

All keys lost service for 2016 Mazda CX-3 by EZ Car Keyz El Cajon CA
Smart Key | Rapid On-Site Service
2016 Mazda CX-3 | San Diego
All keys lost service for 2016 Mazda CX-3 by EZ Car Keyz El Cajon CA
2016 Mazda CX-3 Smart Key
2016 Mazda CX-3
Smart Key | Pro Grade Service
Estimated arrival time to El Cajon
Proven Timing
Rapid Arrival
Available Today
Service location El Cajon
El Cajon
Insured Service
619 Area
Same-Day Keys (619) 876-1271

Licensed, Certified, and Reviewed

Trusted and verified by real customers

E
Ezra M.
Oct 2025
★★★★★

“I needed a new key for my car and Marco gave me the best quote by far. He showed up, made the new key on the spot, and everything works perfectly. Fast service and great value.”

Google Review
F
Felipe P.
Oct 2025
★★★★★

“Quick, affordable, and professional service. Marco made a new key for my motorcycle after I lost it and had me back on the road fast. Clean work, great price, and super friendly.”

Google Review
A
Alexx C.
Dec 2025
★★★★★

“I needed a car key replacement in Hillcrest and EZ Car Keyz helped me immediately. The technician programmed a new smart key right next to my car and tested every function before leaving. Fast, friendly, and very professional.”

Google Review
Watch real savings, real jobs62KFollowers
Locked out rescue review for 2016 Mazda CX-3 - EZ Car Keyz El Cajon CA
“Real savings, real reviews.”
Locked out rescue review for 2016 Mazda CX-3 - EZ Car Keyz El Cajon CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Mazda CX-3 Mobile Service FAQ

Real costs, no dealer surprises

How much does a 2016 Mazda CX-3 key replacement cost?
Call us for the exact number because pricing depends on what you need: a spare added to an existing working key, or an all-keys-lost job where everything has to be wiped and re-registered. Those are two different procedures with different time and equipment involved. What I can tell you is that the dealer price for this generation Mazda smart key replacement tends to land significantly higher once they separate out the fob, the cut inner key, the programming labor, and whatever diagnostic time they attach to it. Our price is one number that covers the hardware, the cutting, the programming, and the mobile service to your location in El Cajon. You get the total on the phone before I drive out.
Is a mobile locksmith actually cheaper than the Mazda dealer for a smart key?
Does your price include cutting and programming, or are those separate?
My CX-3 shows a key warning on the dash but the fob battery is new. What is going on?
I bought a replacement fob online for my 2016 CX-3. Can I program it myself?
Questions? Call (619) 876-1271

Mazda CX-3 Key Service Areas

Background checked and bonded everywhere

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
need a key? 🔑
San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Lockout rescue coverage for 2016 Mazda CX-3 in El Cajon County CA
Emergency dispatch throughout San Diego County

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

Get Help Now (619) 876-1271
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Mazda CX-3 car key replacement video
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Licensed Pros for Your Mazda CX-3 Key

100+ five-star reviews on Google and Yelp. Background checked, bonded, and insured.

Locked out of your 2016 Mazda CX-3? Get help from EZ Car Keyz El Cajon CA
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