What to Do When the Car Key Fails After Battery Replacement?

1 Answers
VonDavid
07/23/25 8:37pm
If the remote key fails after replacing the battery, it needs to be re-matched. The matching method is as follows: 1. Open the driver's side window and keep other windows closed. 2. Insert the remote key, turn it to the "II" position, then return it to the "0" position. Repeat this process four times. 3. After completing step 2, remove the key and press any button, such as the unlock button, for 4-5 seconds. If you hear a sound from inside the car, the key coding is complete. If no sound is heard, repeat step 2 (step 2 needs to be done quickly and decisively). 4. Test the remote closing and opening function inside the car. Everything should return to normal.
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