See also:

Troubleshooting guide
Verify the location of all Intelligent Keys that are programmed for the vehicle. If another Intelligent Key is in range or inside the vehicle, the vehicle system may respond differently than expect ...

If your vehicle is stolen
If your vehicle is stolen, you should change the codes of any non-rolling code device that has been programmed into HomeLink . Consult the Owner’s Manual of each device or call the manufacturer ...

Tire Pressure Monitoring System (TPMS) (if so equipped)
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire ...