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Fast Response Locksmith

2021 Ford F-150
Key Replacement - Save vs Dealer in San Diego

BBB A+ Rated | Verified Credentials

Available
2021 Ford F-150 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
Licensed Since 2016 NASTF Approved Damage Coverage
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
Verified locksmith 2021 Ford F-150 key specs from EZ Car Keyz La Mesa CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Verified locksmith 2021 Ford F-150 key specs from EZ Car Keyz La Mesa CA
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

🔥 Pro credentials, pro discount 🔥

Valid on all warranty-backed key services
REDEEM (619) 876-1271

2021 Ford F-150
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Ford key typeMost Popular
2021 Ford F-150 Smart Key M3N-A2C931426
FCC IDM3N-A2C931426Part #164-R8288Buttons5BatteryCR2450Frequency902 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2021 Ford F-150 Smart Key M3N-A2C93142600
FCC IDM3N-A2C93142600Part #164-R8149Buttons5BatteryCR2450Frequency902 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2021 Ford F-150 Smart Key M3N-A2C93142300
FCC IDM3N-A2C93142300Part #164-R8163Buttons3BatteryCR2450Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote Flip Key
2021 Ford F-150 Remote Flip Key N5F-A08TDA
FCC IDN5F-A08TDAPart #164-R8134Buttons4BatteryCR2032Frequency902 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Remote Flip Key
2021 Ford F-150 Remote Flip Key N5F-A08TAA
FCC IDN5F-A08TAAPart #164-R8130Buttons3BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
2021 Ford F-150 Transponder Key
FCC IDPart #5923293ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Key
2021 Ford F-150 Key M3N-A2C931426
FCC IDM3N-A2C931426Part #164-R8185Buttons5BatteryCR2450Frequency902 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Key
2021 Ford F-150 Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Dealer grade 2021 Ford F-150 key fob from EZ Car Keyz La Mesa CA
Skip the Dealer Markup
Professional key, honest rate
Dealer grade 2021 Ford F-150 key fob from EZ Car Keyz La Mesa CA
🔧 PRO TIP
The 2021 F-150 smart fob takes a CR2450, which is a bigger cell than most people expect. That size difference matters because owners sometimes force in a CR2032 thinking it will work in a pinch. It sits wrong in the tray, makes intermittent contact, and throws a key-not-detected warning that looks like a dead fob or a programming issue. Before you call anyone, confirm you have the right battery seated flat. Also worth knowing: the 2021 F-150 uses a dedicated immobilizer that communicates with the powertrain control module over the vehicle network. A fob that unlocks the doors but won't allow the engine to start is almost always a programming gap, not a broken fob. Those two failure modes look similar from the outside but need different fixes.
Related services: Ignition Repair · Smart Key

Licensed, Insured, and Reviewed

Real credentials, real reviews - see for yourself

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 Ford F-150 Smart Key Replacement - Fast, Affordable & Professional

There is a pharmacy near the heart of La Mesa Village, one of those spots where you park, run in for five minutes, and come back to a situation. A woman came out to her 2021 F-150 and the fob just stopped responding. Doors wouldn't unlock, no response on any button. She had a spare at home but home was not close.

She called me because she had already done her homework. Told me she looked up my BSIS license before dialing. Said her last locksmith left her with a receipt that had no company name, no working phone number a week later, and no license number anywhere on it. She was not doing that again.

I was in La Mesa already, pulled up in about twenty minutes. The fob battery tested low even though she had replaced it not long ago. Turned out it was the right voltage rating on paper but not the correct cell for the tray. It was making just enough contact to sometimes work, which is the worst kind of failure because it hides itself.

Swapped in the correct CR2450, confirmed good contact, walked every button. Fob came back fully. No programming needed, no module work.

She asked about a spare while I was there. We handled the spare on the spot, programmed it through the proper tooling so the immobilizer recognized it, and she left with two working keys and a receipt with a real license number and a phone number that will still work next year.

The dealer had quoted her a wait of several days just to get an appointment. We did it in a parking lot in under an hour.

Save vs the Dealer on Your Ford F-150 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: Casa de Oro · Downtown La Mesa · Grossmont Area · La Mesa Village

Ford F-150 Rapid Response, Done Right

Rapid response in the field

Insured mobile locksmith working on 2021 Ford F-150 in La Mesa CA
Smart Key | Rapid On-Site Service
2021 Ford F-150 | San Diego
Insured mobile locksmith working on 2021 Ford F-150 in La Mesa CA
2021 Ford F-150 Smart Key
2021 Ford F-150
Smart Key | Pro Grade Service
Estimated arrival time to La Mesa
Proven Timing
Rapid Arrival
Available Today
Service location La Mesa
La Mesa
Insured Service
619 Area
Same-Day Keys (619) 876-1271

What Trust Looks Like in Reviews

100+ customers who trusted us

M
Miston
Dec 2025
★★★★★

“My ignition would not turn in La Jolla and I thought I needed a tow. EZ Car Keyz repaired the ignition on the spot and also made a spare key for safety. The technician worked carefully and confidently.”

Google Review
R
Rick R.
Apr 2021
★★★★★

“Niv showed up, did his thing, and just like that I had two new keys for a fraction of what the dealership quoted. I have zero reservations recommending him to anyone who needs car keys replaced.”

Google Review
f
frankborja25
Dec 2019
★★★★★

“We had one broken key for our Honda Civic and one working key for our Lexus. Tim came out and cut three remote car keys at a great price. All keys worked perfectly. Professional, courteous, and highly recommended.”

Google Review
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Google Guaranteed locksmith review for 2021 Ford F-150 - EZ Car Keyz La Mesa CA
“Real savings, real reviews.”
Google Guaranteed locksmith review for 2021 Ford F-150 - EZ Car Keyz La Mesa CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Ford F-150 Mobile Service FAQ

Real costs, no dealer surprises

I lost all my keys to my 2021 F-150. Can you still make a new one?
Yes. All-keys-lost on the 2021 F-150 is a job we handle regularly. The process involves connecting to the vehicle through the diagnostic port, clearing the existing key data from the immobilizer, and enrolling fresh fobs so none of the lost ones can start the truck anymore. Ford's system on this generation typically requires a minimum of two programmed keys before the vehicle will start, so we carry extra blanks and program both in the same visit. You do not need to tow the truck. We come to you in La Mesa, handle the decode, the cutting of the emergency blade, and the full programming on site. One visit, done.
Do I need to tow my F-150 to the dealer if I have no working keys?
How long does an all-keys-lost replacement take on a 2021 F-150?
My 2021 F-150 shows a key-not-detected warning but the fob feels fine. What is actually happening?
Can I buy a replacement fob online and program it myself to my 2021 F-150?
Questions? Call (619) 876-1271

Ford F-150 Key Service Areas

Same licensed team, every city

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
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San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Guaranteed 2021 Ford F-150 locksmith service area in La Mesa County CA
Emergency dispatch throughout San Diego County

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Ford F-150 car key replacement video
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Your Ford F-150 Key in Expert Hands

Eight years of proven service across La Mesa. Licensed, insured, and reviewed by customers.

Rated number one 2021 Ford F-150 locksmith - EZ Car Keyz La Mesa CA
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