Table 1 shows one common exterior lighting related problems of the 2003 Mitsubishi Diamante.
| Problem Category | Number of Problems |
|---|---|
| Headlights problems |
Car doors are locking by themselves, the alarm for keys being left in the ignition no longer sounds, the automatic unlock when keys left in the ignition no longer works, and the headlights do not turn off when the car is turned off and door opened. Have been stranded several times due to keys locked in the car, and a dead battery due to headlights being left on.