1. Check the battery contacts: Make sure the battery contacts in the remote and the key fob are clean and free of corrosion. Clean the contacts with a cotton swab and rubbing alcohol if necessary.
2. Check the fuse: There is a fuse for the keyless entry system in the fuse box under the hood. Check the fuse to make sure it is not blown. If the fuse is blown, replace it with a new one of the same amperage.
3. Check the key fob: Sometimes the key fob itself can become damaged or malfunction. Try using a different key fob to see if that works. If the other key fob works, then the original key fob may need to be replaced.
4. Check the receiver: The receiver for the keyless entry system is located in the overhead console. Make sure the receiver is not damaged or disconnected. If the receiver is damaged, it will need to be replaced.
5. Check the wiring: The wiring for the keyless entry system can become damaged or disconnected. Check the wiring to make sure it is all connected properly and that there are no loose or damaged wires. If any of the wiring is damaged, it will need to be repaired or replaced.
6. Check the programming: The keyless entry system may need to be reprogrammed if it is not working properly. You can try reprogramming the system yourself by following the instructions in the owner's manual. If you are unable to reprogram the system yourself, you will need to take it to a qualified mechanic.
