Last post on Apr 08, 2013 at 9:06 AM
You are in the Chevrolet TrailBlazer
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Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, Electrical, SUV
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#137 of 284 02 Trailblazer, Electrical Prob
May 11, 2010 (11:21 am)
I own a 2002 Chevy TB, after 6 recalls before my warranty went out, its been a mess. I am currently experiencing what seem to be electrical problems. My air bag light sometimes comes on, my cruise control works then doesnt, my a/c blows cold then doesn't. Its been in and out of the shop for the last 6 days and the mechanic cant seem to figure it out. Check engine light back on after sensors were replaced. The panel for radio seems to get blazing hot when radio is on. Anyone had these problems, if so what did you find out that it could be?
#138 of 284 Re: 02 Trailblazer, Electrical Prob [kimmi4]
May 12, 2010 (7:28 am)
Do you mean that sometimes after you start it certain things don't work, but other times they do? Or do these things just stop working randomly? If it's the first, I would look at the ignition switch.
The hot radio panel was discussed lots of times early on and I expect it's just normal. The heatsink for the output driver transistors may be close to the front, I don't know for sure but it's a possibility.
The A/C has always been quirky on my 02, it has to do with the cooling fan design. It's a long technical explanantion. If the A/C is not working at all that's another story.
The most common reason for a CEL to come on is the fuel cap being loose, crooked, or the seal on the cap being worn or cracked. I found the latter to be the problem on mine. The seal isn't just an O ring but a special grooved extrusion (kind of like an O ring with a lip) that gets small cracks over time. I was able to just turn it over and get another year or so out of it before I replaced the entire cap (couldn't just get the seal). Keep in mind that the CEL won't go off right away on it's own even if the problem is cleared. It will take several start cycles. It can be reset through the OBD connection however.
I've had the airbag light stay on after starting a couple of times in 8 years, but shutting it off and re-starting has always taken care of it.
I don't remember 6 recalls. I remember the wiper motor, tail light bulb socket assembly, and the trans lockout button (which I opted not to do). There was also a few TSB's that were done during service but those aren't "recalls".
Good luck finding your solutions.
May 14, 2010 (8:59 am)
I have 2005 trailblazer first thing that happened was fuel gage stopped working, then couple days later wouldnt start, when u turn the key all the lights come on but engine wont turn over. Towed it to dealer they fixed the fuel guage but still no start . so far it has been towed 6 times in 3 weeks they have replaced the starter relay, ignition, battery, and ecm. got it back yesterday with new ecm and wouldnt start this am. towed back to dealer today. good thing i bought the extended warrantee, But they cant figure ourt what is wrong
#140 of 284 Re: HELP [sher9]
May 14, 2010 (11:16 am)
I am from GM Customer Service. I apologize that you are experience issues with your vehicle. Can you please email me more information about the situation so I can look further into it? You can get my email by clicking on my name. Thank you,
Mariah GM Customer Service
#141 of 284 Re: Electrical Problems--Battery or Alternator or what? [eckrut]
May 17, 2010 (2:39 pm)
I had the same problem. Checked for battery, alternator which battery was recently put in so none was bad. Finally, my brother changed the timing belt and has been 4 months now I haven't notice light flashing or battery gauge dropped suddenly again at night or day. Tensioner is also good to look into to replace if it looks like not functioning correctly.
#143 of 284 2005 Trailblazer - Keyless Entry, Rear Wiper, Tailgate Not Working
May 17, 2010 (6:01 pm)
I have a 2005 Trailblazer problem. The tailgate will not unlock, the rear wiper is not working, and the keyless entry is not working all at the same time. The problem was intermittent and then finally didn't work. I took it to the dealer and they said it was a frayed wire and they repaired. Now the problem is back and is intermittent again. Any ideas where I could start looking?
#144 of 284 Re: 2006 Chevy Trailblazer Electrical Short [supern8inak]
Jun 27, 2010 (7:39 am)
I am having a similar issue with my 2006 Chevy Trailblazer. I was driving yesterday and hit a bump in road. The car signaled to "Service Stabilitrak." As I continued to drive, less than 1/4 mile, power started to cut off to several parts of the car. The radio and a/c turned off and I could no longer get readings on my gauges. I stopped at the stop sign and it wouldn't restart. I'm not sure if it is the fuse or alternator. Yesterday, I looked at the fuses and they looked fine. Last night I went back to have the truck towed and it was completely dead due to battery drain. A boost got me up and running and I was able to drive it up on the AAA truck. It's currently sitting outside my house, but I'm concerned as to what might be pulling on my electrical system like this.
Jul 04, 2010 (12:07 pm)
The only way we are going to get anywhere is by getting people to not buy Chevys. The way they treat their customers is criminal. My 06 Trailblazer has been the worst car I have ever owned and they will do nothing to fix it.
Jul 14, 2010 (8:30 am)
It's time for a change. Rather than being slaves to a corporation that sells us crap it's time to file a complaint with the NHTSA. The only way we will ever get a recall issued for or trucks is to get the government involved. Any vehicle problem that has the potential to leave you stranded is a risk to personal safety. These electrical problems that Chevy has been ignoring and charging the consumer for are a risk to your personal safety. It's time to mobilize people. Go to the NHTSA website and file a complaint.