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CarComplaints.com Notes: The 2002-2007 Chevrolet Trailblazer is known for many things, but perhaps it is most famous for its faulty fuel gauge.

This gauge flip-flops more than a politician during election season. Some report that the gauge says "empty" after a fill-up, while others report the gauge says "full" when they're running on fumes. Either way, there's one thing everyone seems to agree on: the darn thing is just wrong.

Following hundreds of complaints and a few accidents allegedly caused by the malfunction, the National Highway Traffic Safety Administration (NHTSA) opened an investigation into the issue in May 2011. Unfortunately for frustrated owners, no recall has been announced.

10.0

really awful
Crashes / Fires:
3 / 39
Injuries / Deaths:
6 / 0
Average Mileage:
65,532 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Chevrolet Trailblazer electrical problems

electrical problem

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2007 Chevrolet Trailblazer Owner Comments (Page 1 of 10)

problem #193

Jul 012023

Trailblazer

  • 214,000 miles

A D V E R T I S E M E N T S

The contact owns a 2007 Chevrolet Trailblazer. The contact stated that the driver's side power master window switch had failed and failed to roll up the windows. There was no warning light illuminated. The contact stated that the failure had caused a significant amount of water to leak into the vehicle. The vehicle was taken to the dealer, where it was diagnosed and the failure was inked to NHTSA Campaign Number: 13V248000 (Electrical System, Visibility); however, the part to do the recall repair was not yet available. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 214,000. Parts distribution disconnect.

- Memphis, TN, USA

problem #192

Jun 092023

Trailblazer

  • miles
Keeps blowing #46 headlight relay. Happens every 2-3 weeks. When this happens the low beams stop working. I have to switch to high beams to continue driving.

- Wayland, MI, USA

problem #191

Apr 042023

Trailblazer

  • miles
I've had the brakes replaced because I thought they were an issue I was having with my ABS. But my car will randomly lock its brakes as I'm driving, no matter what speed. I'm scared to drive it. It also almost loses all power after breaking but then speeds up on its own making it almost impossible to slow down or brake.

- La Crosse, WI, USA

problem #190

Sep 282020

Trailblazer

  • miles

A D V E R T I S E M E N T S

My doors have had water seeping in them the whole time and I-??ve replaced my speakers multiple times.

- New Castle, IN, USA

problem #189

Nov 012021

Trailblazer

  • miles
My headlights turn off bybthemselves while driving, other times they wont turn off at all after car is turned off even while in park, and other times they turn on while switched to off position randomly in the middle of te night resulting in a dead battery come morning. My driver window no longer works as well as driver power locks. Happening since 2020 random at first now permentant removal of fuse switch in order to shut off lights and the fuse switch is hot to the touch upon removal.

- Billings, MT, USA

problem #188

Mar 182021

Trailblazer

  • miles
I noticed around March 18th 2021, that my headlights was out while driving and just 2 days ago my battery died April 12th 2021 due to my ignition switch being stuck it was parked already in my garage

- Compton, CA, USA

problem #187

Oct 112020

Trailblazer

  • miles

A D V E R T I S E M E N T S

The first thing to go wrong was the power windows don't work properly in the winter, now the air conditioner only blows cold air intermittently, and the most recent problem is the headlights won't work at all, I called the local service center and they said that the electrical recalls were VIN specific, even tho I had the correct make model and year my VIN did not qualify for the recall! I'm very upset that they can be VIN specific but I'm having all the issues on the recalls!! I can no longer drive my vehicle if it is raining, foggy, or dark because I have no headlights!!! I also lost control of my car in the rain and think it has to do with the stabilitrak, the light has been on for a while, luckily I stopped my car before I crashed into anything

- Nicholasville, KY, USA

problem #186

Sep 192020

Trailblazer

  • 75,000 miles
Ffuse block caught on fire because of bad relay. The lights went out on my way home from missoula Montana to hamilton Montana. Thankfully the high beams still worked. On opening the fuse block the day and low beam lighs relay had melted a 1/2 inch hole in the fuse block.

- Hamilton, MT, USA

problem #185

Aug 272020

Trailblazer

  • 198,000 miles
While driving my vehicle it started producing a light smoke through defrost vent on passenger side. I stopped and opened the hood to see if something was on fire in the engine area and there was not. I got back in my vehicle and proceeded to drive it back home and within seconds I had black smoke rolling from dashboard and flames shooting from under dash on passenger side hitting passenger seat next to me I pulled over and my son and I jumped out thankfully he was in back seat and the car was engulfed in flames within seconds. Car is totaled. Passenger window quit working about a month ago but I figured it was a window motor issue but now I'm wondering if it was connected.

- Burton, MI, USA

problem #184

Dec 232019

Trailblazer

  • 89,000 miles
Had recall repaired at dealer. Car caught fire door panel switches. Repair has now failed again 12/23/2019. The previous incident, wires were burning in the door panel. Door locks and light were operating erratically. This time the driver S controls are all inoperative. Car was moving at time, made to house, called fire dept via onstar. Car was at dealer several days. Did complain something still banging in door radio speaker has not worked since their recall repair

- Sacramento, CA, USA

problem #183

May 312019

Trailblazer

  • 140,000 miles

A D V E R T I S E M E N T S

The speedometer keeps malfunctioning. The speedometer needle sticks at a higher speed after decelerating or stopping, making it impossible to know what speed you are driving. This happens mostly when the weather warms up, spring/summer/fall. Making a hard braking stop, like at an intersection, will sometimes cause the needle to drop back 5-10 mph, as will turning the car off and back on. Most specifically, yesterday, May 31, 2019, the speedometer needle wouldn't go back down at all, and my speedometer was "pegged" past the top end of 110mph. I have researched online, and this seems to be a common and chronic issue with this model.

- Flint, MI, USA

problem #182

Dec 142018

Trailblazer

  • 148,890 miles
When driving the vehicle the headlights will just randomly go out.or at times they will go out come on and go out again..."while driving " especially at night" causing me to having to pull over..unable seeing where im pullin off the road to.after several tries of turning switch on and off..the lights return.but only for a few and then it does it all over again.this happens randomly..reported it to yhe dealership whr I purchased it...I was told they was unable..to see it.but had change the fuses..

- Martinsburg, WV, USA

problem #181

Nov 232018

Trailblazer

  • 19,000 miles
All of sudden my tail gate will not open unless the vehicle is running and I hit the unlock button 5 or more times and then at times that doesn't work also my airbag light starting blinking and now it won't go off. I called about a recall and was told there wasn't one for this problem but on line it showed it was. My case number is 4864379595 I am going threw cancer treatments and need my vehicle please let me know if this is under recall as I can't pay right now to get it fixed.

- Saline, MI, USA

problem #180

Jun 202017

Trailblazer

  • miles
The driver side door electrical panel malfunctions and the door does not open and the window does not go down and the window lock unlocks after being locked. The rack and pinion had to be replaced twice. The car turned off while driving. The light in the back will not work no matter how many times the bulb and rack has been replaced.

- Newark, NJ, USA

problem #179

Jan 082018

Trailblazer

  • 66,000 miles
Recalled, been trying to get GM dealers to repair recalled door system since purchase Oct 2017. Went out to vehicle, opened door smoke had filled inside vehicle, door panel was warm. All kinds out dash lights blinking, power windows inop.

- Sacramento, CA, USA

problem #178

Oct 232017

Trailblazer

  • miles
Trouble with my ignition. Sometimes will not shut off and unable to remove key. Happens every time I use it.

- Schuylkill Haven, PA, USA

problem #177

Sep 012017

Trailblazer

  • miles
The contact owns a 2007 Chevrolet Trailblazer. Without warning, the low beam headlights failed to function properly. Months later, the manufacturer sent an extended warranty campaign letter. The contact called the manufacturer and was informed that the vehicle exceeded the mileage limitation and they refused to repair the vehicle. A dealer had not inspected and diagnosed the vehicle. The contact was not provided with a solution from the manufacturer and was uncertain of when the vehicle would be repaired. The failure mileage was not available.

- Wyoming, MI, USA

problem #176

Sep 072017

Trailblazer

  • 104,486 miles
The passlock system comes on and stops engine even while driving, it is very dangerous this has happened a number of times. This has happened today on the hwy, and was very alarming. GM has been of no help

- Tuscumbia, AL, USA

problem #175

Jan 132016

Trailblazer

  • 134,000 miles
My truck was involved in a accident and my air bags did not deploy and my charging system goes in and out my 4WD comes on by itself and I have to turn it off while driving

- Detroit, MI, USA

problem #174

May 312017

Trailblazer

  • miles
With no warning, both headlights went out and no longer work. Turn signals, fog lights still work.

- Onalaska, WI, USA

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