Two problems related to wiring have been reported for the 2004 Chevrolet Monte Carlo. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Monte Carlo based on all problems reported for the 2004 Monte Carlo.
The contact owns a 2004 Chevrolet Monte Carlo. The contact stated that the traction control warning light illuminated. The vehicle was taken to the dealer who inspected the vehicle. The failure was located at the tail light assembly wires. The tail light wiring was wired incorrectly and caused the brake light and the traction control to fail. The manufacturer was made aware of the failure. The vehicle was repaired. The failure and the current mileage was 123,401. Updated 6/6/12 the consumer believed during assembly at the gm factory, the tail light/stop light wiring was improperly routed. On the left side, the wiring harness was wrapped around a mounting bolt and the right side, the wires were pinched between the sheet metal of the vehicle's body and the housing of the tail light assembly. Over time, the insulation on the wires became worn and caused a short and loss of brake light function. Updated 06/11/12.
Speedometer started registering incorrect speed, then worked sporadically and sometimes not at all. Car was taken to the dealership to have it looked at. They determined that the whole instrument panel console needed to be replaced (not just the speedometer). The dealership sent the old instrument panel to the parts supplier and received a new instrument panel, then installed it. They speculated that it might have been because of a bad ground in the system. Unsure whether or not old part is available.