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Fast Response Locksmith

2021 Nissan Frontier
Key Replacement - Save vs Dealer in San Diego

100+ Five-Star Reviews | Certified Pros

Available
2021 Nissan Frontier Smart Key
Smart Key

Not all locksmiths are created equal. EZ Car Keyz is BBB A+ rated, fully licensed and insured, and trusted by thousands of customers across the area. Your vehicle is in good hands.

CA BSIS LICENSE LCO#6792
BBB A+ Rated Licensed & Bonded Certified Techs
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
Certified 2021 Nissan Frontier key replacement info from EZ Car Keyz National City CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Certified 2021 Nissan Frontier key replacement info from EZ Car Keyz National City CA
Key specialists
BSIS Licensed
Licensed by the California Bureau of Security
Fixed pricing
NASTF Certified
National Automotive Service Task Force approved
Fast mobile service
100+ Reviews
Five-star rated on Google, Yelp, and BBB A+
619 Special
10% OFFCODE:EZ-619-2026

🔥 5-star service at a discount 🔥

Valid on licensed & insured service
REDEEM (619) 876-1271

2021 Nissan Frontier
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Nissan key typeMost Popular
2021 Nissan Frontier Smart Key KR5TXN7
FCC IDKR5TXN7Part #285E3-6HE1AButtons4BatteryCR2032Frequency434 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2021 Nissan Frontier Smart Key KR5TXN7
FCC IDKR5TXN7Part #285E3-9BU1AButtons3BatteryCR2032Frequency433 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Metal Key
2021 Nissan Frontier Metal Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
OEM quality 2021 Nissan Frontier key fob from EZ Car Keyz National City CA
Skip the Dealer Markup
Professional key, honest rate
OEM quality 2021 Nissan Frontier key fob from EZ Car Keyz National City CA
🔧 PRO TIP
The 2021 Frontier sits in a tricky spot. This is still the outgoing generation, so the Intelligent Key system on this truck is mature and well-documented, but it does not mean it's simple. The fob runs a CR2032 and the truck uses a push-button start with a proximity antenna. One thing that catches people: if the battery dies completely, the fob stops being detected at the door handles before it stops working at the start button. So owners sometimes think the door handle is broken when the fob is just running low. Swap the CR2032 first, then retest every function in order: door handles, then start button. Also worth knowing: the emergency insert blade lives inside the fob and opens the driver door mechanically if everything else fails. That blade slot is on the door handle, not the keyhole on the dash. Some owners stand there looking for an ignition cylinder that isn't where they expect it.
Related services: Ignition Repair · Smart Key

Compare Nissan Frontier Key Credentials

Our credentials vs dealer service - side by side

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
BSIS licensed with OEM quality guaranteed
Book Service (619) 876-1271

2021 Nissan Frontier Smart Key Replacement - Fast, Affordable & Professional

I got a call from a woman in Old Town National City, near one of the event venues off the main drag. She was an event planner. Her 2021 Frontier was parked in a loading zone, a catering vehicle was trying to get through, and her fob had stopped working. Event load-in was two hours out. The tone of the call was calm, but that two-hour window was doing the talking for her.

I was there in under 30 minutes.

She had already tried the fob at the door handle and at the start button. Nothing. The truck was locked. I pulled the emergency insert blade from inside her fob, opened the driver door the manual way, and got in. With the door open I could at least move the truck out of the loading zone before anything else, which she appreciated more than she said out loud.

Then I connected at the OBD port and pulled the key registration. The fob was still in memory, but the truck wasn't seeing it. Fresh CR2032, cleaned the battery contacts, reseated everything. Tested the door handles, tested the start button, walked all four buttons on the fob. It came back clean.

No reprogram needed in the end. The battery had dropped just enough voltage to cause intermittent detection, and the contact had a little corrosion that made it worse. Twenty-five minutes total on site.

She moved the Frontier out of the loading zone with an hour and forty minutes to spare. The dealer quote she'd gotten a few months back for a replacement fob was a figure that made her wince when she repeated it. What she paid me was a fraction of that, and she didn't need a tow or a rental.

Save vs the Dealer on Your Nissan Frontier Key

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

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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: Bay Marina · Downtown National City · Old Town National City · Sweetwater

Nissan Frontier Rapid Response, Done Right

Rapid response in the field

Licensed locksmith replacing 2021 Nissan Frontier key in National City CA
Smart Key | Rapid On-Site Service
2021 Nissan Frontier | San Diego
Licensed locksmith replacing 2021 Nissan Frontier key in National City CA
2021 Nissan Frontier Smart Key
2021 Nissan Frontier
Smart Key | Pro Grade Service
Estimated arrival time to National City
Proven Timing
Rapid Arrival
Available Today
Service location National City
National City
Insured Service
619 Area
Same-Day Keys (619) 876-1271

Five Stars From Verified Customers

Reviews that back up our credentials

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
J
Jennifer R.
Feb 2024
★★★★★

“The dealership quoted me $600 for a new Honda key. EZ Car Keyz did it for $225, same day, cut and programmed at my house. Works perfectly. Everyone should know this is an option.”

Yelp Review
Watch real savings, real jobs62KFollowers
5-star review of 2021 Nissan Frontier key service by EZ Car Keyz National City CA
“Real savings, real reviews.”
5-star review of 2021 Nissan Frontier key service by EZ Car Keyz National City CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Nissan Frontier Mobile Service FAQ

Real costs, no dealer surprises

How do I spot a fake locksmith before I get ripped off?
A few things to look for. If they won't give you a real estimate over the phone for your specific vehicle, that's the first sign. The "nineteen dollar service call, we'll figure out the rest when we arrive" move is a bait and switch. It's been documented enough that Nissan owners on forums actively warn each other about it. Look the business up before they show up. A legitimate automotive locksmith has real reviews, a real business name that matches when you search it, and someone who can actually talk through your key type and what the job involves. If you mention the Intelligent Key on your 2021 Frontier and they go quiet or pivot fast, that's a flag. One more: a real locksmith will tell you the price before they touch the vehicle. Not after.
What exactly is an Intelligent Key, and why can't I just get a copy made at a hardware store?
What equipment do you actually use to program a Nissan Intelligent Key?
I have a spare Intelligent Key for my 2021 Frontier. Can I add it myself without going to a dealer?
My 2021 Frontier starts fine but keeps showing a key warning on the dash. Is the fob going bad?
Questions? Call (619) 876-1271

Nissan Frontier Key Service Areas

Trusted by thousands across the area

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
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San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Licensed 2021 Nissan Frontier locksmith service area in San Diego County CA
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Certified Nissan Frontier Key Experts

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Trusted 2021 Nissan Frontier locksmith service by EZ Car Keyz National City CA
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