Chevrolet Trailblazer EXT 370 Electrical Problems

Electrical complaints by model year

Which parts fail

• Instrument cluster/panel
  33
• Ignition
  1
• Wiring
  1

Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).

Mileage when the problem started

• Under 25k
  44%
• 25k–50k
  1514%
• 50k–75k
  3634%
• 75k–100k
  3331%
• 100k–150k
  1615%
• 150k+
  33%

What owners report

Tl* the contact owns a 2006 Chevrolet Trailblazer EXT 370. While operating the vehicle, the fuel gauge would erroneously indicate that the fuel tank was empty. After restarting the vehicle, the fuel gauge would provide an accurate fuel reading before displaying empty again. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 71,800.

Tl* the contact owns a 2006 Chevrolet Trailblazer EXT 370. While the vehicle was stopped at a red light, the headlights failed to illuminate. The failure recurred twice. The vehicle was taken to an independent mechanic where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 126,000.

My 2005 Chevy Trailblazer is completely going crazy it seems everything electrical is going wrong with it. I am afraid to let my wife or my kids drive in it because I never know what's going to go wrong while driving. My whole gas system is gone from fuel level indicator to the gauge. My entire dashboard is not working. Lights are going out. What is crazy about this is that I am one of thousands that this is happening to. Chevy needs to fix this problem before someone does get killed. Waiting for fatalities before making Chevy fixes there awfully made vehicles is unacceptable. I understand the situation our economy is in but these thousands of Trailblazer owners that are having these problems shouldn't be paying thousands of dollars to be getting there entire electrical problem fixed. I do not know one owner of a 2006 Trailblazer that does not have this same problem. …

There is already a recall out for the 2006 model year, but I know that mine is part of it. I have a 2005 Trailblazer and the headlights keep intermittently going out as I am driving down the road. This problem as happened to me before in the past and I was able to finally remedy the issue by replacing the relay. The problem has now returned and I have even been pulled over multiple times for it. After doing a quick google search today I discovered that there are tons!!!!! Of people with the same issue going back as far as 2002. Http://www.topix.com/forum/autos/Chevrolet-Trailblazer/t32jtl93i9fkauf4n http://forums.trailvoy.com/showthread.php?t=47492 http://chevroletforum.com/forum/Trailblazer-27/2003-Trailblazer-headlights-2588/ I also ran across that GM has issued a recall for headlights, but it only covers years 2006-2008. …

I parked the car in my driveway and the passenger side mirror started clicking. The mirror was attempting to rotate to the extreme car side of the mirror. Using the remote mirror control had no effect.the car was turned off and the mirror motor continued to try to move the mirror past the limit. After several minutes, the clicking stopped and there was an odor of plastic burning. After the clicking stopped, neither mirror moved. The local mechanic said the wiring to the motor had burned and shorted the mechanism. I was lucky that there was no damage to the interior of the door. Has this malfunction been a problem with the trailblazers?

Switches for the power window and heated driver's seat on driver's door panel stopped working. Heater for driver's seat turns on, on its own and cannot be controlled with the switch. While the heater for driver's seat is on, the instrument panel flickers. The heater for driver's seat turns on and off, on its own and each time it comes on, the instrument panel flickers.

Tl* the contact owns a 2003 Chevrolet Trailblazer EXT 370. The contact stated that the turn signals do not function properly and the hazard lights illuminated instead of the turn signals. The contact was able to press the button for the hazard lights when needed, but not the turn signals. The vehicle was not diagnosed. The failure continued and caused the front headlight assembly and the rear headlight assembly to short and dim with no warning. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 150,000.

2003 Chevrolet Trailblazer 370 rear passenger side door electrical window control switch would not completely close window . Smelled like electrical wire burning. Had vehicle stop at time and had assistance in removing door interior panel and found electrical window switch completely melted and wire connection burned . Personal vehicle used on vacation, stopped just off highway at time .

NHTSA investigations