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Fast Response Locksmith

2020 Mazda 3
Key Replacement - Save vs Dealer in San Diego

Why Pay Dealer Rates? | Mobile Service

Available
2020 Mazda 3 Smart Key
Smart Key

Save 40-60% compared to dealership prices. Our certified technicians come to your home, office, or roadside with all the equipment needed to cut and program your key on the spot.

CA BSIS LICENSE LCO#6792
Pay Less, Get More No Overcharging Price Match
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
2020 Mazda 3 car key pricing breakdown from EZ Car Keyz San Marcos CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
2020 Mazda 3 car key pricing breakdown from EZ Car Keyz San Marcos CA
Key specialists
Save 40-60%
Same OEM-quality key, fraction of the dealer price
Fixed pricing
Fixed Pricing
The quote on the phone is what you pay. Period.
Fast mobile service
Free Mobile Service
No trip fees, no towing costs - service included
619 Special
10% OFFCODE:EZ-619-2026

🔥 OEM key, fraction of the cost 🔥

Discount applied at time of service
REDEEM (619) 876-1271

2020 Mazda 3
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Mazda key typeMost Popular
2020 Mazda 3 Smart Key WAZSKE11D01
FCC IDWAZSKE11D01Part #BCYA-67-5DYButtons4BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2020 Mazda 3 Smart Key WAZSKE13D01
FCC IDWAZSKE13D01Part #KDY3-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2020 Mazda 3 Smart Key WAZSKE13D02
FCC IDWAZSKE13D02Part #KD33-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2020 Mazda 3 Smart Key WAZSKE11D01
FCC IDWAZSKE11D01Part #BCYN-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2020 Mazda 3 Smart Key WAZSKE13D03
FCC IDWAZSKE13D03Part #TAYA-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Key
2020 Mazda 3 Key WAZSKE13D02
FCC IDWAZSKE13D02Part #KDY3-67-5DYButtons3BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2020 Mazda 3 Smart Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Value priced 2020 Mazda 3 smart key from EZ Car Keyz San Marcos CA
Skip the Dealer Markup
Professional key, honest rate
Value priced 2020 Mazda 3 smart key from EZ Car Keyz San Marcos CA
🔧 PRO TIP
The 2020 Mazda 3 smart key runs a CR2025 cell, not the CR2032 that fits a lot of other fobs. Easy mix-up at the checkout counter because they look nearly identical. A CR2032 is slightly thicker and will either not seat properly or put pressure on the contacts in a way that causes intermittent behavior. Get the right size. Beyond that, the fob housing on these has a known tendency to develop hairline cracks near the key release button if it's been dropped a few times. Even a tiny crack lets humidity work on the circuit board inside. If the fob on a used 2020 Mazda 3 starts acting spotty, pop it open and look at the board before assuming the electronics are done. A swollen or leaking battery from a previous owner leaving a dead cell in there too long is also worth checking. The battery contact tabs on these are thin and can get corroded or slightly bent from a bad swap.
Related services: Ignition Repair · Smart Key

Same Key, Half the Price

The math speaks for itself

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 key, fraction of the dealer price
Book Service (619) 876-1271

2020 Mazda 3 Smart Key Replacement - Fast, Affordable & Professional

I got a call from a first-year teacher who had just bought a used 2020 Mazda 3 from a coworker near the CSUSM area in San Marcos. Decent car, fair deal, one key. She called the Mazda dealer first. The quote she got back stopped her cold. On a new teacher's salary, that number wasn't happening.

She found me online and asked if the dealer quote was real. I told her it was. Dealers charge what they charge, and the overhead is what it is. But the same result costs a fraction of that through me, and I come to you.

I met her at the lot after school. The 2020 Mazda 3 smart key system requires diagnostic equipment to register a new fob to the vehicle. There's no ignition-turn sequence, no button trick. I connected to the OBD port, pulled up the immobilizer module, and enrolled a new fob alongside her existing one. Cut the emergency insert blade from a decode of her door lock so it matched perfectly.

She ended up with two working keys, standing right next to her car. The whole job took under an hour.

The part that stuck with me was after I handed her the second key. She just held it for a second, like she was doing the math on what it meant to have a spare. A first-year teacher, new car, tight budget. That spare key is the difference between a quick add-a-key call someday and an all-keys-lost job that costs a lot more.

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 (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: CSUSM Area · Downtown San Marcos · Lake San Marcos · Richland

Mazda 3 Rapid Response, Done Right

Rapid response in the field

2020 Mazda 3 key replacement at half the dealer price in San Marcos CA
Smart Key | Rapid On-Site Service
2020 Mazda 3 | San Diego
2020 Mazda 3 key replacement at half the dealer price in San Marcos CA
2020 Mazda 3 Smart Key
2020 Mazda 3
Smart Key | Programmed for Less
Estimated arrival time to San Marcos
Quick & Affordable
Rapid Arrival
Available Today
Service location San Marcos
San Marcos
Best Rate Here
619 Area
Same-Day Keys (619) 876-1271

Why Mazda Owners Choose Us Over the Dealer

Real people, real savings, real reviews

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
K
Kelly C.
Dec 2024
★★★★★

“My car keys were stolen on a cold evening and Nick drove all the way out to Santa Barbara. He got into my car, made a new key, and charged $100 less than another company. Friendly, skilled, trustworthy, and genuinely caring. Nick is a hero.”

Yelp Review
K
Kane G.
Apr 2024
★★★★★

“Tim is a hero. He programmed a master proximity key for a newer Volkswagen that multiple locksmiths refused to touch. He spent hours until late at night making sure every function worked perfectly. The skill level here is incredible.”

Yelp Review
Watch real savings, real jobs62KFollowers
Best value 2020 Mazda 3 key replacement review - EZ Car Keyz San Marcos CA
“Real savings, real reviews.”
Best value 2020 Mazda 3 key replacement review - EZ Car Keyz San Marcos CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Mazda 3 Mobile Service FAQ

Real costs, no dealer surprises

Do I need to bring my 2020 Mazda 3 somewhere for key replacement?
No. I come to you. Whether you're parked at home, at work, or in a lot near CSUSM, I bring everything the job needs: the right fob, the cutting equipment, and the programming tools. Mazda dealers need you to either drive in with a working key or arrange a tow if you have none. That tow cost alone can hurt before the key work even starts. I handle the whole job on site, and your car doesn't move unless you want it to.
How does mobile smart key replacement work for the 2020 Mazda 3?
What do I need to have ready when you show up?
I bought a replacement fob online for my 2020 Mazda 3. Can I program it myself?
My 2020 Mazda 3 shows a key warning on the dash even though the fob is right there. What's going on?
Questions? Call (619) 876-1271

Mazda 3 Key Service Areas

Dealer alternative in your area

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
need a key? 🔑
San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Best deal 2020 Mazda 3 locksmith coverage in San Diego County CA
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Mazda 3 car key replacement video
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Mazda 3 Key Without the Dealer Markup

The dealer charges double for the same key. We charge fairly. Call EZ Car Keyz and save.

Unbeatable 2020 Mazda 3 key price from EZ Car Keyz San Marcos CA
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