Skip the auto shop - Our mechanics make house calls

Q: Is it possible to take used key fob and reprogram it?

asked by on

I have a used remote with the same button configurations (including remote start) and was wondering if it was possible to reset or overwrite that key fob to my vehicle. I have a single remote currently programmed to the car
My car has an automatic transmission.

Hi there. You could reprogram a key fob to a different vehicle as long as the key is the same for the vehicle. In this case, if the key can go into the doors and unlock them, then you would need to do the following:

  • Remove the battery from the key fob and put it back in (unless you put in a new battery)
  • Remove the battery cables from the vehicle, wait 30 seconds, then hook them back up (reset computer).
  • Put the key in the ignition and turn the key to the ’ON’ position.
  • Turn the key to the ’OFF’ position.
  • Turn the key to the ’ON’ position and lock the door with you hand and the remote at the same time.
  • Turn the key to the ’OFF’ position.
  • Turn the key to the ’ON’ position and unlock the door with you hand and the remote at the same time.
  • Turn the key to the ’OFF’ position.
  • Remove the key from the ignition switch.
  • Put the key in the driver door
  • Unlock and lock the door with the key and push the lock and unlock buttons on the key fob at the same time - (do this 3 times).
  • Take the key out of the door and with the door shut, try to unlock the doors with the remote.
  • If the doors will lock then put the key in the ignition switch and try to start the engine.

If the engine starts up after these steps, then the key fob is successfully reprogrammed to your vehicle. If the key is not starting up the engine or locking the doors, then the key may be different all together and you would need to get a new key. If you need further assistance with your keyless entry system, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Bent wheel on passenger side

Hello. Bent wheels can be a problem as they will cause tire wear and can cause vibration. If the vehicle is equipped with a steel wheel you can usually take the wheel to a tire store that can send the...

Q: Convertible stuck open

Hello. This commonly happens on this vehicle for a number of reasons. Most of the time, it is because of a battery voltage loss. It can also happen if one of the sensors are not reading correctly. When either of...

Q: Chirping noise when I accelerate

This may be related to a failing power steering pump or low power steering fluid levels. As you may know, the power steering system uses a pump, normally driven by a belt. The pump supplies pressure as it is turned...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...