See also:

Engine serial number
MR20DE QR25DE The number is stamped on the engine as shown. ...

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 ...

Seat belt warning chime
The seat belt warning chime will sound for about 6 seconds unless the driver’s seat belt is securely fastened. ...