This is what you can do if a dealership is asking for hundreds of dollars to program a car key fob
Published on Nov 18, 2025 at 11:09 AM (UTC+4)
by Jason Fan
Last updated on Nov 18, 2025 at 12:38 PM (UTC+4)
Edited by
Kate Bain
If you’ve ever wondered how to program a car key fob without handing over a small fortune to your dealership, you’re not alone.
With new cars averaging more than $50,000 and maintenance bills steadily climbing, nobody wants to drop an extra few hundred bucks just to make a plastic clicker do what it’s intended to do.
That’s why DIY key-fob hacks are gaining popularity.
Sometimes all it takes is curiosity, a cheap tool, and a refusal to pay dealership prices.
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How to program a car key fob
One Silverado owner recently became a minor TikTok hero after refusing to swallow a $260 programming fee on top of the $160 he had already spent for a replacement fob.
Instead, he got a $40 key-fob programmer from O’Reilly Auto Parts and figured, why not try it?
The process turned out to be hilariously simple.
Plug the device into the truck’s OBD-II port, press and hold the lock and unlock buttons on the new fob for up to 30 seconds, wait for the confirmation beep, and boom, the fob syncs like magic.

Saving $260 for 30 seconds of effort is the kind of math everyone can get behind.
And here’s the fun part: this isn’t some rare Silverado-only cheat code.
Key-fob programming tools are available at places like Walmart for under $20, and while they won’t work for every make and model, they’re often worth a shot before surrendering your wallet at the service desk.
Modern cars have a staggering variety of keys, from simple chips to smart fobs with fancy features, so success depends on the manufacturer.
However, plenty of owners online have reported that the DIY hack works.
How to guide: quick and easy DIY steps
Even without a programming gadget, many vehicles include a built-in way to add an extra key, though the steps vary from car to car.
A common method goes something like this: sit inside your vehicle with both the working key and the new one.
Insert your current key, turn it until the dash wakes up (but don’t start the engine), turn it back off, and pull it out.

Then quickly (usually within five seconds) insert the new key, and repeat the dashboard-on dash-off sequence.
In many cars, this kicks the system into security mode, allowing the new key to be recognized.
Some models may even display prompts on the dashboard to guide you.
Why it’s not guaranteed to work with every model, this method costs nothing, so it’s worth a try before you go to the dealership and spend a chunk of cash.
And if your key fob dies before you can get your hands on a new one, you can always try this simple trick to start your car in an emergency.
Knowing how to program a car key fob means the next time a service advisor quotes you hundreds just to pair a key fob, you can say ‘no, thanks’ with a smug face.
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Jason Fan is an experienced content creator who graduated from Nanyang Technological University in Singapore with a degree in communications. He then relocated to Australia during a millennial mid-life crisis. A fan of luxury travel and high-performance machines, he politely thanks chatbots just in case the AI apocalypse ever arrives. Jason covers a wide variety of topics, with a special focus on technology, planes and luxury.