One problem related to battery has 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.
I have had the car since 3/05 brand new off the show room floor, currently have about 38k miles on the vehicle -since I have owned the vehicle more than 20 times while driving all of the lights will come on the dashboard and the seatbelt light will chime --then the battery light will remain on for approx 15 to 20 minutes-have had the vehicle on for service numerous times and they have replaced module after module -cannot diagnose problem. On at least 5 occasions while driving at highway speeds of 50mph or more the vehicle will just turn off and everything will lock up. Vehicle will restart right away but there is no warning that the vehicle is about to stall or turn off --had in for service numerous times -have been assured that the problem is fixed and then it will happen all over again. This vehicle is a hazard to be on the road -as Chevrolet truly has no idea what is causing the problem, they believed the problem was due to the remote start in the vehicle -they replaced that numerous times and finally removed all together and the problem still exists. There is no telling when the car will shut off it will be fine for days and the problem will resurface. Last incident date was 3/27/09 -problem started in 2007.