2004 Chevrolet Trailblazer EXT electrical problems

Filed Dec 23, 2017 · Airbags, Electrical · 157,000 miles · WA

Instrumental panel/ gage cluster. All gages continue to fail spiking all over the place prior to failing. Air bag light continues to blink on then off randomly

Filed Jul 30, 2017 · Electrical · AL

Fuel gauge not working alone with all the other gauges and turning signal not working

Filed Jan 12, 2016 · Electrical · 98,000 miles · MA

Tl* the contact owns a 2004 chevrolet trailblazer ext. The contact stated that the entire instrument panel failed to operate. In addition, the speedometer, tachometer, and fuel gauge failed to function properly. The vehicle was taken to an independent mechanic who stated that the instrument panel cluster would need to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 98,000. The VIN was unavailable.

Filed Aug 20, 2014 · Airbags, Electrical · 47,000 miles · NY · crash · 5 injuries

When had the crash which was very hard loud and scary the air bags didn't deploy nor did the air bags on the side of seat. The crash was very serious and the electrical system and powertrain to windows.

Filed Jul 2, 2014 · Electrical · 150,000 miles · VA

Speedometer dropped to zero. Stopped vehicle and restarted. Speedometer started but wouldn't go above 35 MPH. I had a GPS speedometer on my phone and it was registering 55-60 MPH and the vehicle speedometer would display 25-30. After a cool night it might work correctly for 4 or 5 miles then it either drops to zero or falls to the 10-25mph range. Sometimes restarting the vehicle will get it to work again for a short time. When it is failing the needle drops below the 0 MPH towards the mileage. When it seems to be working somewhat it stops at 0 MPH or just above it. This should really be a recall ! Thank you

Filed May 20, 2014 · Electrical · 135,000 miles · NC

The headlights intermittently will not work (lowbeam only). It happens at night many times and I will have to drive with the bright lights or fog lights. Sometimes the entire dash lighting will go out as well including the speedometer. It's almost as if the electrical portion of the ignition has failed. It has been happening intermittently for about a year.

Filed Apr 26, 2014 · Electrical · 57,000 miles · MI

Instrument panel/ speedometer no longer works, first incident happened march of 2010. As of 12/2013 the voltage meter, RPM gauge, speedometer have completely stopped working.

Filed Apr 2, 2014 · Electrical, Fuel system · 83,000 miles · MA

Lights started flashing, gas gauge went to empty, car died. Restarted drove 1/4 mile died. Stereo system completely failed (whole unit). Keeps popping circuits changed out still doing. Cannot shut off heat due to banging sound. Car speeds up and down on own. Cannot read gas gauge correctly, not sure how full tank is.

Filed Jul 25, 2013 · Electrical · 62,000 miles · NY

Speedometer gets stuck at random places. Impossible to know how fast you are going. Gm recalled for this but not on trailblazers.

Filed Jun 6, 2013 · Electrical, Fuel system · 103,000 miles · FM

We were doing our normal fill-up (truck was off) and after we filled it up & turned it over, the fuel gauge shot way over the 'full' mark. Every time we turned the vehicle on, the fuel gauge was reading differently, I have no idea how many times it was right. The oil pressure and battery charge gauge have also been giving false/sporadic readings as well. After much searching, I found the root cause of this to be a very common problem not only in the trailblazers but the tahoes and several other of their vehicles (the instrument clusters are faulty). Given the expansive nature of this issue, and the potential dangers of not knowing your speed, fuel level, oil pressure or rpms, I'm having problems seeing why this isn't a recall already. It seems to happen more in the 2003-2006 models more than others from what I've found as well.