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SAN DIEGO COUNTY
6AM - 11:30PM • MOBILE SERVICE •
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(619) 876-1271
EZ Car Keyz California bear mascot
Fast Response Locksmith

CAR KEY REPLACEMENT

NASTF-certified mobile locksmiths serving every city across San Diego County. Full blank inventory, cut and programmed on the spot. 100+ five-star Google reviews. Call or text for an exact quote in under 60 seconds.

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BSIS LCO #6792 - Locksmith credential badgeBSIS LCO #6792
Fully Insured - Locksmith credential badgeFully Insured
★★★★★Over 100 Reviews
EZ Car Keyz Mobile Car Key Replacement Van San Diego County
Available
Marco Levy - EZ Car Keyz Key Replacement
Marco L.Your Locksmith

Also serving Ventura County

25-Min ETA Upfront Pricing Free Quote

Car Key Replacement Options We Offer

Prices below are typical ranges. Your exact cost depends on year, make, model, and whether all keys have been lost. We'll confirm the price before any work starts.

01

Transponder Key Replacement

Security light blinking and the engine won't turn over? That's the immobilizer rejecting the key. We fix it at your location, no tow needed.

Mobile automotive locksmith cutting and pairing a new transponder key for a 2020 Toyota Camry parked on a quiet street in San Diego, California.

Most transponder keys built after 2010 use encrypted challenge-response protocols. The ECU and chip exchange a cryptographic handshake every time you start the car, which means old-school cloning is useless.

$150-$27530-45 minutes

Text us your year, make, and model for a free quote.

02

Smart Key / Proximity Fob Replacement

Keyless entry stopped working and the push-button ignition won't engage? We'll have a new fob programmed at your location in under an hour.

EZ Car Keyz pairing a replacement proximity fob for a 2021 Ford Explorer at a customer's home in Chula Vista, California.

Proximity fobs are the key you never take out of your pocket, or purse, or gym bag, which is exactly how they end up lost. The system uses short-range encrypted radio between the fob and multiple antennas built into the vehicle's body.

$275-$475Under 1 hour

Text us your year, make, and model for a free quote.

03

Laser-Cut / Sidewinder Key Replacement

Dealerships quote $400 to $600 for this key and make you tow the car in. We cut the identical key at your location in half an hour for less.

Mobile key cutting on a sidewinder blade for a 2018 Mercedes C-Class at a home driveway in Oceanside, California.

Sidewinders get their name from the winding groove milled down the center of a thick, flat blade.

$200-$325About 30 minutes

Text us your year, make, and model for a free quote.

04

Flip Key / Switchblade Key Replacement

Housing cracked? Spring gave out? Blade won't fold back in? We fix or replace flip keys in a single visit, no return trip.

Mobile flip key rebuild for a 2017 Hyundai Elantra at the customer's office parking lot in Escondido, California.

If your key folds in half like a pocket knife, you have a flip key, and you're far from alone. This is the single most common key type on San Diego's roads, covering everything from Kia Fortes and Hyundai Elantras to Chevy Cruzes and Mazda 3s.

$160-$300Under 45 minutes

Text us your year, make, and model for a free quote.

05

Standard Metal Key Replacement

Cheapest and fastest job we do. If you're down to your last key, get a spare cut before it becomes an emergency.

Mobile key cutting for an older fleet pickup used by a crew working near a military installation in Carlsbad, California. The request is a straight mechanical cut, no transponder involved, calibrated to the factory bitting on our shop machine.

Purely mechanical. No electronics whatsoever. Turn it in the lock, start the engine, done. These are increasingly rare on consumer vehicles, but San Diego's massive military presence keeps them in heavy rotation: government-issue trucks and fleet rigs around Camp Pendleton, MCAS Miramar, Naval Base San Diego, and the shipyards.

$60-$11015-20 minutes

Text us your year, make, and model for a free quote.

06

Emergency / Insert Key Replacement

San Diego's salt air eats fob batteries faster than the owner's manual promises. Get a replacement emergency blade cut before you're standing in a parking lot with a dead fob.

Mobile cut of an emergency insert key for a 2020 Acura MDX at a seaside residence in El Cajon, California. The owner's proximity fob went dead overnight and the mechanical backup slot was empty from a prior dealer swap.

Park near the coast in Ocean Beach, La Jolla, or Coronado and the humidity alone can cut battery life well short of what you'd expect.

When the battery finally gives out, often at the worst possible moment, the emergency insert key is your only way in.

$85-$165Quick service

Text us your year, make, and model for a free quote.

Simple Process

How It Works

EZ Car Keyz Car Key Replacement step 01 - Describe Your Key Situation in San Diego County
01

Describe Your Key Situation

Tell us the year, make, and model. We quote an exact price on the spot.

EZ Car Keyz Car Key Replacement step 02 - We Drive to You in San Diego County
02

We Drive to You

Our mobile unit shows up wherever you are. Average arrival: 25 minutes.

EZ Car Keyz Car Key Replacement step 03 - New Key in Hand in San Diego County
03

New Key in Hand

Key cut, programmed to your vehicle, and tested before we pack up.

Sound Familiar?

  • Your key fell out of your pocket at the beach and you already retraced your steps twice.
  • You're returning a lease and the dealership is going to charge you $400 or more for the missing second key.
  • A valet, mechanic, or parking attendant lost your key and you need a replacement before the finger-pointing sorts itself out.
  • Your spare has been sitting in a kitchen drawer so long the transponder chip stopped syncing with the car.
  • You bought a car private-party and the seller swore there were two keys but only handed over one at signing.

Frequently Asked Questions

What do I need to have ready when you arrive?
A valid photo ID and your vehicle registration. The name on the ID needs to match the registration. If you're borrowing the car, have the owner provide written authorization or be available by phone for verbal confirmation. Ownership verification is required on every single job. It's quick, and it's there to make sure nobody gets a key made for a car that isn't theirs.
Can you come to a parking garage, tow yard, or my job site?
Yes, all of the above. Parking structures downtown, impound lots, hotel valets, military base housing (with base access), your office parking lot, even airport long-term lots. If we can get to the vehicle and access the driver's door, we can do the work. We handle tow yard jobs near Barrio Logan and Kearny Mesa all the time.
Will my roadside assistance or insurance pay for a new key?
Roadside assistance almost always covers lockouts (getting the door open) but not key replacement (cutting and programming a new one). Those are two different services. That said, some comprehensive auto insurance policies and credit card travel benefits do cover lost key replacement up to a certain dollar amount. We'll provide a detailed invoice with line items so you can file a claim if your policy qualifies.
I bought a key fob on Amazon. Can you just program it?
Depends on the key. Some aftermarket fobs work fine and we're happy to program them. Others use incorrect chip types or frequencies that won't pair with your vehicle no matter what we do. Before we schedule, send us the listing link or part number and we'll tell you straight up if it's going to work. If it won't, we carry OEM-spec replacements on the truck so you won't need a second appointment.
Can you make more than one key at a time?
Yes, and it's the smart move. The diagnostic session and setup time are the same whether we program one key or four. Each additional key in the same visit costs less than scheduling a separate trip later. Most vehicles support up to eight keys in the system. We recommend keeping at least two programmed and stored in different locations.
My key broke inside the lock. Can you still help?
That's a two-part job: extraction first, then cut and program a replacement. The biggest thing you can do to help is leave the broken piece alone. Don't push it further in, don't try to pry it out with pliers or a knife. Every time someone digs around in there before we arrive, it risks scoring the lock cylinder and turning a simple extraction into a lock replacement. Call us and don't touch it.
Do you handle fleet vehicles, rental cars, or motorcycles?
Fleet vehicles and motorcycles with transponder systems, yes. Rental cars get tricky because the rental company owns the vehicle, so they need to authorize the work directly. If you're managing a commercial fleet in San Diego, we do volume accounts with per-key pricing and priority scheduling. Motorcycles with chipped keys are becoming more common and we carry the diagnostic tools for most major brands.
How do I know your price is fair?
We text you a flat price before we leave the shop. That number covers everything: the key blank, cutting, programming, and the trip to your location. No add-ons once we arrive. We don't charge a separate "service call fee" or bump the price when we see the vehicle. You'll know the total before we ever start driving. Compare it to a dealership quote and the tow bill you'd need to get there.

What Customers Say

⭐⭐⭐⭐⭐

"Marco is the man for car keys. Lost my key for a Subaru WRX, he showed up same day and programmed it on the spot. Nice guy and great service."

Ray P.
⭐⭐⭐⭐⭐

"Super fast - 20 minutes from calling. Had a spare key made for my 2017 Nissan Rogue in 15 minutes. Friendly, fast, professional service."

Zebadiah A.
⭐⭐⭐⭐⭐

"Needed a car key replacement in Hillcrest and EZ Car Keyz helped me immediately. The technician programmed a new smart key beside my car and checked every function. Fast, friendly, very professional."

Alexx C.
EZ Car Keyz Car Key Replacement video in San Diego County

Lost Your Key? Call Now.

We cut and program a new key at your location. Exact price on the phone, no surprises at your door.

Acura key fob2019 Acura RdxAcura
Audi key fob2018 Audi Q5Audi
Bmw key fob2019 Bmw X3Bmw
Buick key fob2018 Buick EnclaveBuick
Chevrolet key fob2019 Chevrolet EquinoxChevrolet
Chrysler key fob2019 Chrysler 300Chrysler
Ford key fob2020 Ford ExplorerFord
Gmc key fob2019 Gmc AcadiaGmc
Honda key fob2019 Honda CivicHonda
Infiniti key fob2018 Infiniti Q50Infiniti
Lincoln key fob2018 Lincoln MkcLincoln
Mazda key fob2019 Mazda Cx 5Mazda
Mercedes Benz key fob2018 Mercedes Benz GlcMercedes Benz
Nissan key fob2019 Nissan RogueNissan
Porsche key fob2019 Porsche CayennePorsche
Ram key fob2019 Ram 1500Ram
Toyota key fob2019 Toyota CamryToyota
Volvo key fob2018 Volvo Xc60Volvo
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