Table 1 shows eight common electrical system related problems of the 2004 Chevrolet Avalanche. The number one most common problem is related to the instrument panel (65 problems). The second most common problem is related to the electrical system (35 problems).
I did an internet search to see what causes a speedometer to go out and to my surprise there are many people who have had their speedometer to go out on this model vehicle. Most people experienced this problem around 30,000 miles. Read details...
Vehicle looses power and brakes go out then dies,doesn't matter speed. If slowing down and press the brakes, the locks, lights, and security goes crazy. This is dangerous as it is in intersections and caution for collision. The vehicle has to be off for a time frame and restarts fine and can go. Read details...
The contact owns a 2004 Chevrolet Avalanche. The contact stated that the speedometer would display inaccurate readings and failed intermittently. With the assistance of a navigation system that would read the traveled speed at 55 mph, the vehicle's speedometer would display over 100 mph. Read details...