Quick answer:
- Proximity fobs are the most advanced car keys — and the priciest to replace.
- A locksmith can program most proximity fobs on-site, often below dealer pricing.
- A spare proximity fob now saves a lot of pain later.
What Makes Proximity Fobs Different
A push-to-start system uses a proximity fob the car senses when it’s nearby — you keep it in your pocket, press the brake, and hit Start. There’s no blade to insert (though most hide an emergency key inside). Because the fob constantly communicates with the vehicle and carries rolling-code security, it’s the most sophisticated — and most expensive — type of car key to replace. It’s a step up from a standard transponder key.
What Drives the Cost
Proximity-fob pricing varies more than any other key, depending on:
- Make and model (luxury and newest models cost more)
- Whether you still have a working fob (cheaper) or it’s all-keys-lost
- The fob hardware itself, which is pricier than a basic key
- Programming complexity for that vehicle’s security system
See our pricing guide for context, and compare routes in dealer vs. locksmith.
How a Locksmith Replaces It
For most vehicles, our mobile van can supply a compatible proximity fob, cut the hidden emergency blade, and program the fob to your car via the diagnostic port — right where the car is parked, no dealer tow. A handful of very new models still require the dealer, and we’ll tell you honestly. Details on how programming works.
Lost the Only Fob? Two Tips
First, you can usually still get into and start the car using the hidden emergency key and by holding the fob to the start button — check your manual. Second, once you’re sorted, make a spare — proximity fobs are the most painful and costly to replace from scratch (see all-keys-lost). Call (505) 818-0720 with your year, make, model, and VIN.
Frequently Asked Questions
Can a locksmith really program a push-to-start fob?
For the large majority of vehicles, yes — on-site. Some of the newest or specialty models still require the dealer; we’ll confirm for your specific car before we head out.
Why are proximity fobs so expensive?
The fob hardware itself costs more, and the rolling-code security takes more involved programming. Still, a locksmith is often less than the dealer and comes to you without a tow.
My push-to-start fob died — am I stranded?
Usually not. Most cars let you start the engine by holding the fob against or near the start button, and there’s a hidden emergency key for the door. Then replace the battery or the fob.
Need a locksmith in Albuquerque? Call Just In Time Locksmith at (505) 818-0720 for fast, local, upfront-priced service — or request service online. 24/7 across the metro.