display a warning when the key battery needs replacing.
Check your owner’s manual for the correct battery and opening procedure. Match the specified battery type, install it in the correct orientation, and avoid forcing the casing or bending the contacts. Keep loose coin batteries away from children.
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you have a spare, check whether it unlocks and starts the vehicle.
A working spare helps narrow the problem to the original key, although it does not reveal exactly what is wrong. If neither key works, the vehicle itself may need attention. Tell
