One problem related to battery has been reported for the 2004 Buick Rendezvous. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Buick Rendezvous based on all problems reported for the 2004 Rendezvous.
Purchased 2004 Buick Rendezvous 6/22/2005 and while traveling to work on busy belt-line waiting in traffic, the vehicle just shut down completely and battery light came on. Put vehcile in neutral and it restarted. Later found that presets in radio had all been erased which would indicate a complete loss of electrical power. This has the potential to be a serious safety concern due to the possibilty of rear end collisions. Have read of similar complaints from other owners of this vehicle with out resolution. Will contact dealership if problem continues to happen.