Warning signs the Keyless Entry Transmitter is failing:
- Reduced range: You have to be closer to the vehicle for the remote to work.
- Intermittent operation: Sometimes the remote works, sometimes it doesn't.
- Buttons don't respond: Pressing a button does nothing.
- Vehicle doesn't respond: The car doesn't lock, unlock, or start (if equipped with remote start).
How to test if this part is the problem:
- Check the battery: Replace the battery in the key fob with a new one. This is the most common cause of failure.
- Try the spare key fob: If you have a second key fob, try using it. If the second fob works, the first one is likely the problem.
- Check the vehicle's battery: A weak car battery can sometimes interfere with the keyless entry system.
- Inspect the key fob: Look for any signs of physical damage, such as cracks or broken buttons.
- Consult a professional: If you've tried these steps and the key fob still doesn't work, a mechanic can diagnose the problem further. They can check the vehicle's receiver and other components.
Common failure causes:
- Dead battery: The most frequent cause.
- Physical damage: Dropping the key fob can damage the internal components.
- Water damage: Exposure to water can corrode the electronics.
- Button wear: Repeated use can wear out the buttons.
- Internal component failure: Over time, the internal components can fail.
