One problem related to underhood wiring 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.
Suddenly about 3 months ago the vehicle began to stall in traffic while being driven. The dash board lights all go off, the radio washes out the presets, when the engine is turned off sometimes the radio presets are erased. Many times the auto locks and unlocks when sitting in the lot. The dealer has worked on it at least five times, two engine control modules, a new wiring harness, the auto has had its radio "recalibrated" this thing is dangerous because it keeps shutting off while driving. Dealer says he has had multiple problems with similar cars, and that they continue to behave irrationally. Obviously an electrical problem, gm denies there is anything wrong, but when it shuts off going 0-60 mph on the highway there is a problem. Not to mention that when the dash board lights shut off, or the radio starts to act unusual it is very unsafe especially at night. One time the steering wheel radio button were switched, seek was band, and band seek.