Warning signs the Keyless Entry Transmitter is failing:
- The buttons on your key fob may not work consistently. Sometimes they work, sometimes they don't.
- You have to press the buttons multiple times for the car to respond.
- The range of the key fob is significantly reduced. You have to be very close to the car for it to work.
- The key fob doesn't work at all, even with a fresh battery.
- Your car alarm goes off randomly.
How to test if this part is the problem:
- Check the battery: The easiest first step is to replace the battery in your key fob with a new one. If that fixes the problem, you're all set!
- Try a spare key fob: If you have a spare key fob, try using it. If the spare works fine, then the original key fob is likely the problem.
- Check the car's battery: A weak car battery can sometimes cause issues with the keyless entry system. Make sure your car battery is in good condition.
- Inspect the key fob: Look for any signs of physical damage to the key fob, such as cracks, broken buttons, or water damage.
- Have it professionally diagnosed: If you've tried these steps and are still having problems, it's best to take your car to a qualified mechanic or locksmith for diagnosis.
Common failure causes:
- Dead battery: The most common cause is simply a dead battery in the key fob.
- Physical damage: Dropping the key fob or getting it wet can damage the internal components.
- Worn buttons: Over time, the buttons can wear out and become less responsive.
- Internal component failure: The electronic components inside the key fob can fail due to age or other factors.
- Programming issues: Sometimes the key fob can lose its programming and need to be reprogrammed to the vehicle.