One problem related to brake disc rotor has been reported for the 1999 Mitsubishi Diamante. The most recently reported issues are listed below.
Rotors warped at 14444 miles, dealer turned them under warranty. They got warped again at 18700 mile, but dealer refused to address the issue, citing driver's driving habits.
| Brake Disc Rotor problems | |
| Brake Disc problems | |
| Service Brakes problems |