Print this page 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.


really awful
Crashes / Fires:
1 / 1
Injuries / Deaths:
1 / 0
Average Mileage:
85,498 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.

2005 Chevrolet Trailblazer engine problems

engine problem

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2005 Chevrolet Trailblazer Owner Comments (Page 1 of 2)

problem #24

Jun 112016


  • 120,000 miles


The contact owns a 2005 Chevrolet Trailblazer. While operating the vehicle, smoke emitted from the hood. The contact pulled over and discovered flames under the hood. The fire department extinguished the fire. The vehicle was taken to an independent mechanic where it was diagnosed that the failure was due to a failed GM/ac delco transmission coolant line fitting, which caused transmission coolant to leak out onto the catalytic converter and exhaust system. The manufacturer was not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was 120,000.

- Waynesburg, PA, USA

problem #23

Feb 152016


  • 130,000 miles
Car will not accelerate. Revs up really high without acceleration.

- Kansas City, MO, USA

problem #22

Jan 012013


  • 58,584 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that the steering wheel became difficult to turn and the speedometer failed. In addition, the rear hatch lock failed causing the contact to be unable to unlock the rear hatch and the front rotors failed. The vehicle was taken to an independent mechanic, who replaced the power steering pump and the front rotors. The speedometer and rear hatch were not repaired. The contact also stated that there was a strong abnormal odor present inside the vehicle and the engine warning light illuminated. The manufacturer was not notified of the failure. The failure mileage was 58,584.

- Por Arthur, TX, USA

problem #21

Mar 312015

Trailblazer 6-cyl

  • 160,107 miles


The headlights work then shut off. (on the way to work in a downpour, no less) dashboard lights partially working. (if I go over 40 mpg can't tell what my speed is) was working correctly for a couple of days now nothing. I checked for recalls and there are recalls for 2006-20xx (NHTSA 14V755000 ) just wondering, after finding on the internet, numerous 2005 owners with same problem, why this model wasn't included in the recalls? I would like to file a complaint on the potentially deadly problem of the 2005 Chevy Trailblazer that should be corrected and included in this recall. Thank you

- Bessemer, AL, USA

problem #20

Jul 112013


  • miles
The engine light constantly comes on even after I had a tune up. I had diagnostics done and there is some type of fuel misfire. Two winters straight I have had issues with the power steering lines bursting and replaced 3 times. The speedometer malfunctions, most of the time it just stays at zero. If GM uses a lot of the same parts to make multiple models why has the 2005 Trailblazer not been recalled? I was told the GM Envoy has the same engine and other inner workings as my Trailblazer so why wouldn't their recalls apply to my vehicle especially if I may be having the same issues.

- Edgewood, MD, USA

problem #19

Jan 012015


  • 98,000 miles
Multiple times while driving the headlights will malfunction and turn on and off, at random driving speeds under many different conditions. I continued to drive the Trailblazer even after this occurred. Just not as often. If the heater was on while driving and the headlights would short the heater would stop and then turn back on. The fan turns on at random, first it turns on when driving at random times. The fan will turn on at random times with a higher speed and sound. I have had the inspection completed multiple times with a mechanic re-assuring the issue although it has been happening frequently. The check engine light is on all the time due to computer error and is a $500 fix. This has all happened and been reported within the first year I bought the vehicle from kendal motors in lewiston Idaho. I find that the amount of work to fix this vehicle is overwhelming and to see that this vehicle was under 100.000 miles is financially distressing. I have already had the fuel pump portion removed and fixed twice, I had to purchase a locking cap. The stereo repeatedly jams with new cd's even.

- Coeurdalene, ID, USA

problem #18

Oct 012014

Trailblazer 6-cyl

  • 140,000 miles


Pulled up to a red light and stopped. Shortly after, coming to a complete stop, the engine just shut down. No warning lights had come on prior to the engine shutting down. Just lost all power instantly. I turned the key, as you would to start the vehicle, and it started right up. Very glad it did not happen while I was on the expressway or while moving. I can't help but wonder if it is an ignition problem, as that which plagues other GM products. Also, I have the radio on while driving and on multiple occasions, after turning off the car and opening the door to get out, the radio refuses to stop playing (it is supposed to, and it used to, cease operating when you open the driver's door). I am forced to open the back vehicle door to get it to stop. I wonder if this is a related issue to the ignition, as the ignition key may not actually be shutting of the accessories.

- Spring Hill, FL, USA

problem #17

Mar 062014


  • 150,000 miles
The contact owns a 2005 Chevrolet Trailblazer. While driving 55 mph, the check engine warning indicator illuminated and the vehicle stalled. Within five minutes, the vehicle restarted but the check engine indicator remained illuminated. The failure occurred four times. The vehicle was taken to a dealer who confirmed that the throttle body needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 150,000.

- Hiltonhead, SC, USA

problem #16

Aug 052014


  • 89,000 miles
The contact owns a 2005 Chevrolet Trailblazer. While parking, the vehicle stalled and the ABS and service brake system warning indicators illuminated. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 89,000.

- Macon, GA, USA

problem #15

Jul 012014

Trailblazer 6-cyl

  • 123,000 miles
The check engine light comes on&off a lot right after fueling, I took it to the GMC dealership&had the camshaft replaced because it kept cutting off every time I turned a curve.I tried to show or tell them about this GMC recall letter I got on my 2005 Chevrolet Trailblazer, but they said that it didn't apply because of the mileage&I told them the car is not 10yrs old& the paper is saying 10yrs/120,00 miles& for me to take it to the dealership so that the manger can send my bill & receipt in for reimbursement they wouldn't do it.I guess because I'm a woman.driving to work on the interstate the car shut completely off. The car was still moving when all of a sudden all the lights and gauge's lit up and the car cut off. It did not lock up so I was able to steer it from the middle lane of a three lane interstate highway to the grass on the side without getting killed or hurting someone else.I had just filled it up with gas with a quarter of a tank from the full line. Once I got the car to a complete stop and thanking god that this was not tragic, I put the car in park and waited a few minutes before starting it back up. It started back up as if nothing had happened. I took it to auto zone to get a free diagnostic check&it showed that nothing was wrong. A few weeks later after I would cut the car off the air conditioning would not stop&the engine light constantly comes on every other time I hit the brakes. I had to keep taking out fuse #35 to get it to stop even after the car was cut off just so the battery won't run down. Took it to the dealership and was charged an arm&leg to get it fixed. I showed them the recall letter again and they said it was too late for them or myself to do anything about it. I have all of my receipts & the letter from GMC about the sure my vehicle fits in there somewhere with these problems& truly would like 4 them 2 give my free car.

- Dallas, NC, USA

problem #14

Jul 082008

Trailblazer 6-cyl

  • 3,000 miles


I am the owner of a 2005 Chevrolet Trailblazer with 32,000 miles. I purchased the truck new from the dealer. Over the few years that I have owned the vehicle, I have been faced with a multitude of issues. My first problem became the ac lines. They began to leak due to rust, which was not covered under the 7 year, 70,000 mile warranty. Next the exhaust manifold began to leak. The cost was covered under the warranty; however, the dealer managed to break the bolts that hold the manifold to the engine. The breakage was not covered, and therefore, I had to pay. Following these two issues, I noticed rust all over the undercarriage. In the past three years, after my warranty expired, I had to fix the following items due to the rust: The power steering coil, rear end, transmission, fuel pump, power steering lines, power steering pump, rack and pinion, front wheel bearings, and a fuel gage recall from GM. In addition, I avoid using low 4-wheel drive, because the vehicle gets stuck in that gearing.

- East Stroudsburg, PA, USA

problem #13

Jul 102006

Trailblazer 6-cyl

  • 8,000 miles
My car has shut down while idling at a stop sign or red light. The first time was in 2006, but has happened several times since then. I've taken it to the dealership, but they said that they couldn't see anything wrong with my vehicle. I believe that my fuel gauge is inaccurate. It showed empty, and, then 1/4 tank. The rear wiper sweeps without being turned on.

- Newnan, GA, USA

problem #12

Nov 052012

Trailblazer 6-cyl

  • 90,000 miles
Sir/ MA'am, I noticed recently in the news that several GM product lines have been plagued by faulty ignition switches causing the vehicle to lose power and/or cut out. I implore you to look into the Trailblazers. I emailed GM while I was deployed (2012) and they gave me the runaround saying that it is not a documented problem, as expected. A simple internet search would show that a lot of other Trailblazer owners have bad ignition switches/ electrical issues that cause the vehicle to lose power at all speeds. My wife lost power going about 35 mph and I had my two children along with her. This is just one example, on one occasion. Granted, I do acknowledge this problem is intermittent, it still occurs at random and at all speeds. GM tells me to go to a dealer and have them look at it. I refuse to pay GM any money to have a dealership rip me off for an ignition switch that is flawed and replace it with the same faulty oem style/model number. I have ran a scan tool looking for codes and it doesn't have any. Like stated previously, this is another line of GM that is plagued with ignition and electrical issues that GM refuses to take ownership of. The mileage I have entered is approximate. I cannot remember exact numbers, but it has happened for years, intermittently. When the vehicle has coasted to it's final destination after losing power, it starts up and drives normal again after it is put back into park. Also keep in mind that it doesn't show any check engine lights, indicating a problem or need of servicing. Again, please look into this product line as I know the result(s) will show that GM is liable and I don't want any fatalities because nobody spoke up about it.

- Yelm, WA, USA

problem #11

Jan 152014

Trailblazer 6-cyl

  • 92,000 miles
Speedometer randomly parks on 0 mph no matter what the speed is. The fuel gauge randomly indicates "E" or other inaccurate fuel readings regardless of how much fuel is in the tank. The car randomly stalls when stopped at traffic lights.

- Ft Lauderdale, FL, USA

problem #10

Mar 072014


  • 106,200 miles
We were driving at about 55 (we don't know exact speed as our control panel is not working) and the steering went out. It was hard pulling to the right and a few times we could not control it and went off the road. We had another incident like that when we were driving in the snow. When we purchased the car we had a fuel issue that covered under a recall.... now our whole panel is out. We don't know the speed we are going, the oil light and engine light are always on. We take care of our car so we know its not low on anything.

- Mccordsville, IN, USA

problem #9

Mar 232011

Trailblazer 6-cyl

  • 111,416 miles
Problems with my 2005 Chevy Trailblazer started with a series of engine lights, misfiring and stalling at low speeds and upon acceleration. My thermostat has been replaced numerous amount of times. I do preventative maintenance to keep my car in good working condition. I'm a single parent I need my car. My entire dashboard stopped working after getting stuck on and off. The fuel gauge was last to go 3 days ago. I fill up my tank it still reads empty with the light. My tailgate door the latch locks up. I manually have to move to latch so it closes. My doors sticking when the car is unlocked and it hard to get out the locks don't unlatch the first time. My car is very nice until U get in it to see everything is malfunctioning. I guess my speed, gas level and that's not cool. I been going through these same problems since 2011 and it's 2014. The fuel gauge was the last to go recently. When I fill up my tank it still reads empty with the indicator light. My repair was $565 we thought it was exhaust leak and had to replace the entire manifold it was cracked... I absolutely can't afford anything else and I need tires.please help I'm furious.. when you purchase a vehicle you expect it to last. That doesn't. my mechanics have been the same since day one and have given me every discount and warranty. I want my vehicle repaired I can't physically cause this type of damage. It's internal and not my fault. I have never had a car with this temperament. I have had 4 cars previous to this one and they lasted through the years until I decided to change cars. Everyone has the same problems with their vehicle as I do. How is that possible? manufacturers should value quality not quantity. I have every single document to verify this as well as my mechanics. I would like my vehicle repaired and to be reimbursed.

- Spring Valley, CA, USA

problem #8

Sep 102012


  • 40 miles
The contact owns a 2005 Chevrolet Trailblazer. The contact stated that while traveling approximately 40 mph, the vehicle suddenly stalled and veered into oncoming traffic. The driver crashed into another vehicle and the air bags failed to deploy upon impact. The driver sustained face, back, and neck injuries. The driver of the second vehicle was not injured. The vehicle was destroyed. The manufacturer was not contacted about the failure. The vehicle was not diagnosed. The failure mileage and VIN was not available.

- Lake Wood, NJ, USA

problem #7

Feb 272013


  • 140,000 miles
My Trailblazer 2005 would be driving down the street at about 25 to 30 miles, then my engine would just turn off with out any warning, am afraid it will happen again but this time when am in the highways going 60 miles on the highway I seen that is not just my vehicle that has happened to and even the fuel pump has gave up with out no answer, the GM or Chevrolet dealership don't have a clue why this is happening. It will be really helpful if you guys look into this before someone gets hurt on this malfunction. I really appreciate for taking your time. Sincerely, Chevrolet Trailblazer driver

- Brooklyn Park, MN, USA

problem #6

Dec 122013

Trailblazer 6-cyl

  • 155,000 miles
Driving at a low speed through a residential area the engine would serge between 2K RPM and 4K RPM. If surging is allowed to persist then it is followed by the vehicle's power steering shut off ultimately ending in the engine shutting off. After vehicle is restarted the cycle starts again after a short period of driving.

- Hill Afb , UT, USA

problem #5

Nov 062012


  • 70,000 miles
Even if this car is well maintained it sadly as serious electrical issues that Chevy does not want to come to terms with. The speedometer goes out and in and reads incorrectly as well as the rest of the gauges at random points in time. The heating system needs replaces and the alternator consistently needs to be replaced even when the maintenance of the car is maintained. It is a consistent struggle to keep the car running even if it is not on high miles and it is a sad product for Chevy.

- Tacoma, WA, USA

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