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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:
0 / 5
Injuries / Deaths:
0 / 0
Average Mileage:
97,225 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.

2006 Chevrolet Trailblazer engine problems

engine problem

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2006 Chevrolet Trailblazer Owner Comments (Page 1 of 3)

problem #41

May 012020

Trailblazer

  • 160,000 miles

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

Stabilitrak light comes on intermittently for no apparent reason. Have had brake fluid, brake pads, rotors, sensors and tires replaced. Traction control and ABS checked; all is good. No cel code relating to this issue. Traction control off button doesn┐T work once light appears. There is no difference in driving when light is on. Still haven┐T figured out what causes it. Battery, power cords, and alternator have both had to be replaced do to issues with the voltage outputs. Now to replace fuse box and ECM due to more voltage output issues. Cel has had no indications of an ECM, fuse box, alternator, or battery problem until they were beyond repair (this also happened with other transfer case leak, loss of reverse gear, and front differential leak). Cel comes and goes by itself at anytime with no difference in drivability or conditions. Each time it reappeard it's thrown different sensors and/or circuits failing or high/low voltages including O2, maf, tps, evap system, wheel speed, fuel pressure, oil pressure, steering wheel, gas and brake pedal position, air bag impact, just to name a few. My car has recently started going into limp mode at random due to this electrical issue. Only remedy for this problem is disconnecting the wiring harness and allowing the fuse box and ECM to cool down. And finally, my oil filler tube seal broke and oil was spitting out into engine bay. Coincidentally, my PCV valve tube had also broken, and the tube was hanging loose right in front of the oil filler tube. As a result, PCV tubing sucked up a large amount of oil into the air intake; with no check engine light illumination indicating any problems during the time of failure. My air intake system is nearly ruined (not to mention the $$$ I shelled out in oil) and the wear down on parts has been detrimental to the life of the engine. This car is nothing but a cash cow for GM.

- Reno, NV, USA

problem #40

Mar 072020

Trailblazer

  • miles
I purchased the vehicle from usados auto sales and the owner told me the car had 185,000 on it. Well after paying cash and waiting 27 days I finally receive the title and it says it has 260,000. The bill of sale he signed when he bought it also stated that the actual mileage wasn┐T correct. He filed my bill of sale out and didn┐T inform me or even right back there form he lied to me and said it was 185,000 so I contacted him and he said it was something he overlooked to just write on my bill of sale the actual mileage and I told him no I would you have spent $2500 on a vehicle with 260,000 miles and he refuses to help me. Now the vehicles check engine light is on. It leaking oil and the radio doesn┐T work and it keeps blowing fuses.

- Marietta, SC, USA

problem #39

Mar 042019

Trailblazer

  • 158,000 miles
If GM knows about the exhaust manifolds on these Trailblazers that warp and leak exhaust why are they not fixing them.it's a on going problem

- Lancaster, PA, USA

problem #38

Jul 132018

Trailblazer

  • 126,000 miles

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

The contact owns a 2006 Chevrolet Trailblazer. While driving various speeds, the windshield wipers sprayed uncontrollably at maximum pressure. Even though the sprayer activated uncontrollably, the wipers did not work. The failure recurred. The contact also stated that the check engine indicator illuminated and remained lit prior to the failure. The contact called progressive Chevrolet at 330-879-3697 (located at 8000 hills and dales rd nw, massillon, oh 44646) and was advised to call the manufacturer. The manufacturer was called and stated that there was no recall. The vehicle was not diagnosed or repaired. The failure mileage was approximately 126,000.

- Canton, OH, USA

problem #37

Oct 052016

Trailblazer

  • 120,000 miles
The contact owns a 2006 Chevrolet Trailblazer. While driving various speeds, the vehicle stalled without warning. The contact stated that the failure occurred on several occasions. In order to restart, the vehicle would need to be shifted into park or neutral. The vehicle was taken to an independent mechanic, but the failure could not be duplicated. The contact stated that there were other issues with the vehicle that the independent mechanic was able to correct, but the stalling persisted. The manufacturer was made aware of the failure. The failure mileage was approximately 120,000.

- Demotte, IN, USA

problem #36

Feb 162017

Trailblazer

  • 167,200 miles
Vehicle was serviced for a faulty fuel level float sensor, which was registering that there was no fuel in the gas tank when the tank was full. 7 days later, while driving on a busy freeway, all of the gauges on the gauge cluster started spinning out of control and the vehicle lost complete power while driving 65 mph. I had to merege across 4 lanes on the freeway in heavy traffic and nearly got run over. No power to the engine at all - it just died while I was driving. Of course, onstar and the Chevrolet dealer that performed all of the service on the vehicle were no help. While waiting for onstar, my vehicle was towed off the freeway.

- Houston, TX, USA

problem #35

Jun 012016

Trailblazer

  • 127,000 miles

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

Whilst driving on the highway the engine shut down and lost power steering. Had to pull over on the side of the highway. At high speeds this is troubling. The powertrain and check engine light came on. Waited several minutes and car would restart and be operable but would repeat. Mechanic determined a faulty computer known as the powetrain control module (PCM) or engine control module (ECM). This part was replaced and has fixed the problem.

- Grand Rapids, MI, USA

problem #34

May 281016

Trailblazer

  • miles
I spent over $1000 to have this problem fix, years ago, today 5/27/20016 I having the same problems. This truck is important to me and my kid. Turn the key and it want start, wait ten miniutes and try it again it starts, but while driving it the engine shuts down in traffic. Pull over to the side try to start it again sometimes it will start wright away no problem but other time it will take longer prolike the next day. The major concern is while I am driving with my son, the engine would shut down on the highway and local streets. Everytime this happen I am concern someone will rear end my truck and someone will be hurt. I try different mechanic the same problems. I needed help?

- Bethesda, MD, USA

problem #33

Apr 282016

Trailblazer

  • miles
Vehicle shut off while driving on highway lost power almost got into accident and was blocking trafficc. Other vehicles like mine have the same problem.

- La Puente, CA, USA

problem #32

Mar 012016

Trailblazer

  • 160,000 miles
When driving the engine randomly shuts off, looses power steering have to switch to neutral and restart vehicle. Suspect ignition switch possible

- Riverton, UT, USA

problem #31

Jan 012012

Trailblazer

  • 85,000 miles

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

Ignition switch failed on the road truck shut off could not be pushed would not go out of park once attempted to restart. Had to be towed off road.

- Jonesboro, AR, USA

problem #30

Oct 312012

Trailblazer

  • 140,000 miles
The contact owns a 2006 Chevrolet Trailblazer. The contact stated that while driving at approximately 25 mph, the vehicle leaked oil. The failure recurred numerous times. The vehicle was taken to a dealer where the failure was undetermined. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000. Updated 1/12/16

- Butler, KY, USA

problem #29

May 272015

Trailblazer 4WD 6-cyl

  • 149,000 miles
The contact owns a 2006 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the engine stalled. The pass lock warning message illuminated prior to the failure. The failure was recurring. The vehicle restarted after several attempts. The vehicle was taken to a dealer where it was not diagnosed or repaired. The manufacturer was aware of the failure. The failure mileage was approximately 149,000. Updated 12/03/15 the consumer stated the ignition switch and relay were replaced. However, the problem continued. Updated 12/10/15.

- East Jordan , MI, USA

problem #28

Dec 202007

Trailblazer

  • 8 miles
The contact owns a 2006 Chevrolet Trailblazer. While driving approximately 40 mph, the vehicle stalled. After several attempts, the vehicle restarted. The vehicle was taken to a dealer for diagnostic testing. The ignition circuit was replaced; however, the failure recurred. The mechanic stated that the throttle body needed to be cleaned. In addition, the contact stated that there was a grinding sound as the ignition was being started. The vehicle was taken to a dealer for diagnostic testing. The technician stated that the starter drive gear was worn and the starter was replaced. The manufacturer was notified of the failure. The approximate failure mileage was 8.

- Anaheim, CA, USA

problem #27

Jun 052015

Trailblazer

  • 150,000 miles
On two occasions now within a two week time frame, vehicle shuts off while driving. Both times I was in motion at approx. 25 to 35 mph. Get it over to put in park and it does start up so far. I have children and I commute on an extremely busy freeway. What if this failure occurs while I'm moving at 70mph plus? my mechanic has replaced some parts in hopes it was the problem. The check engine light is on/off for months but nothing of a major concern is showing up on the computer. I understand this vehicle has 150K miles but it should not be shutting down while driving. Please help.

- Howell, MI, USA

problem #26

Apr 082015

Trailblazer 6-cyl

  • 121,146 miles
I recently purchased this vehicle 3 weeks ago from a dealer in St augustine, Florida. The engine will just shut off when I am driving, I have two young children and am concerned that this could cause an accident when driving. I have not been able to get any help from the dealer where I purchased the vehicle even to do a diagnostic on the vehicle. Has there been any problems/ recalls with the ignition switch on this make and model, even when at idle it will shut off, without touching anything.

- St Augustine, FL, USA

problem #25

Jun 022014

Trailblazer

  • miles
The contact owns a 2006 Chevrolet Trailblazer. The contact stated that the check engine warning light remained illuminated. The vehicle was taken to the dealer who discovered burnt wires. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was unavailable.

- Tawas, MI, USA

problem #24

Oct 072014

Trailblazer

  • 148,000 miles
TL-the contact owns a 2006 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle stalled without warning. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 148,000. Djr

- Birmingham, AL, USA

problem #23

Nov 232014

Trailblazer

  • 133,800 miles
The contact owns a 2006 Chevrolet Trailblazer. While driving approximately 45 mph, the engine seized without warning. As a result, the vehicle lost all electricity and power steering. The failure recurred numerous times. The vehicle was not taken to the dealer. The manufacturer was not made aware of the failure. The failure mileage was 133,800.

- Troy, MI, USA

problem #22

May 192013

Trailblazer 4WD 6-cyl

  • 118,198 miles
My husband and I were traveling home from a weekend out of state. We were coming into Chicago traveling towards Wisconsin where we live. Just before the first toll booth on I80/I94 traveling at highway speeds, we hit a slight bump in the road and lost all power to the car. We managed to coast the car over from the far left lane of a 5 lane highway to the right shoulder of the road out of harms way. The car was towed to a Firestone dealership on a Sunday afternoon; we were told after a systems analysis was completed that the car would have to be towed to a GM dealership. The closest was in homewood, il. After GM fixed the car, I asked what would cause something like this to happen. I was told by the dealership, it is something that just happens. Knowing the gravity of what could have happened, this is very upsetting. I really believe the Trailblazer should be also noted on the GM recall of autos before another family has to experience what mine did or worse. Thank you

- Verona, WI, USA

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