Chevrolet Trailblazer power steering loss problems

Filed Nov 2, 2026 · Engine, Steering · MI

I am filing this complaint regarding a serious engine failure in my 2021 Chevrolet Trailblazer LS that occurred while I was driving. While driving, the vehicle displayed the warning message “Engine Power Reduced” and I experienced a loss of power steering. Approximately 30 seconds after these warnings and symptoms appeared, the engine failed and I was stranded. The vehicle became inoperable. The sudden loss of engine power and power steering while the vehicle was in motion created an extremely dangerous situation. The vehicle could no longer be safely operated, and I was left stranded after an abrupt failure while driving. This vehicle has experienced recurring engine-related problems since approximately 30,000 miles. Despite previous repair attempts and ongoing concerns, it has now suffered a severe engine failure. The dealership’s diagnostic report states that the engine died and would not crank or start. The technician diagnosed a shredded or failed timing belt that caused the engine to jump timing. The report further documents internal engine damage, including piston-to-valve contact and exhaust-side rocker arms displaced from the valves/lifters. The dealership recommends replacement of the complete engine assembly. The estimated cost to replace the engine is approximately $6,200. I contacted General Motors regarding this failure. GM has offered to contribute only 10% toward the repair cost, leaving me responsible for the overwhelming majority of the expense despite the vehicle’s history of recurring problems. I am concerned that this failure may represent a serious safety defect. Other owners of the same vehicle have reported similar engine-related problems.

Filed Aug 31, 2026 · Brakes, Electrical · MO

About a year ago I brought my car to the dealership because my computer blacked out which resulted in losing power steering and braking ability. I was told they hooked it up to the computer and found nothing and sent me on my way. Last week this same thing happened 5x in one day and I lost all computer function for 24 hours. The computer has since glitched and blacked out multiple times but have not lost steering or braking.

Filed Jun 24, 2026 · Electrical, Fuel system · CA

Vehicle stalled and shut off while driving in moving traffic on multiple occasions, resulting in sudden loss of power steering and brake assist — a significant safety hazard. Battery failed at 32,860 miles (September 2025) with all low voltage codes. Battery replaced by dealer. Vehicle continued to exhibit stalling, no-start, and Battery Saver Active warnings. Dealer has been unable to resolve the recurring issue across three visits (RO 510659, RO 518708, RO 523715) at Chevrolet of Culver City, Culver City CA. Dealer is now attributing the fault to contaminated fuel without providing lab evidence. Active GM Customer Care case 1-02414837. Powertrain warranty active

Filed Feb 4, 2026 · Brakes, Electrical · NY

The incident involved a 2025 Chevrolet Trailblazer, purchased new in late February 2025. The failure appears related to the vehicle’s electrical/charging system and associated control modules, resulting in a sudden loss of critical safety systems. The vehicle was towed by GM Roadside Assistance and is currently at an authorized Chevrolet dealership, where it is available for inspection upon request. While driving in Cambria, New York, the dashboard illuminated with multiple warning indicators and the vehicle experienced a complete loss of power steering and braking. The brake pedal traveled fully to the floor with no resistance and no braking effect. Steering effort increased dramatically. The driver was only able to avoid a crash due to favorable road and traffic conditions and was able to coast to a stop and pull off the roadway. This failure posed an immediate and serious risk of injury or death to the driver and others. The problem had occurred previously in the form of repeated warning messages. Beginning within the first week of ownership, the vehicle displayed “Service the Charge System Vehicle May Stall” warnings and since then has appeared hundreds of times. The vehicle was previously towed to an authorized Chevrolet dealership, where we were informed that General Motors identified the issue as a known software-related problem and advised that the vehicle could continue to be driven while awaiting a future update. The catastrophic failure occurred after this guidance. The vehicle has been inspected by an authorized Chevrolet dealership both prior to and following this incident, and General Motors has been involved through dealership communication. No police or insurance inspection has occurred, as no collision resulted. Based on the repeated warnings, dealer statements, and nature of the failure, the best assessment is an electrical or software-related malfunction, though the precise root cause remains UNKNOWN and requires investigation.

Filed May 5, 2025 · KS

Upon starting vehicle it would idle for 30secs to 1 minute before shutting completely down, then would prompt to engage brake and push start/stop button to turn back on. Two different times while driving at 60+ mph the vehicle completely stalled losing power steering and brakes. Both times when the vehicle shut down it would say to push start/stop button and then place vehicle in park, engage brake to restart. When the vehicle stalled I was getting onto a highway and was about 2 seconds from being hit from behind by a semi while I was at almost a standstill while they were doing 70+. Have taken it back to the dealership both times and it died on them once but there is no solution to this issue as no codes come up.

Filed Aug 30, 2022 · Steering · 200,000 miles · OH

The contact owns a 2006 Chevrolet Trailblazer. The contact stated while driving approximately 35 MPH, the vehicle lost power steering and braking functionality. There were no warning lights illuminated. The vehicle was towed to the residence. The vehicle was diagnosed by an independent mechanic with power steering failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to the federal safety agency Campaign Number: 05V455000 (Steering). The approximate failure mileage was 200,000.

Filed Jan 25, 2022 · Brakes, Engine · 3,051 miles · WI

The contact owns a 2022 Chevrolet Trailblazer. The contact stated that while operating the vehicle, the engine fans were activated however, the engine overheated. The vehicle was taken to the local dealer who diagnosed the engine thermostat as faulty. The thermostat was replaced, and the failure was remedied. Also, while driving the vehicle would jerk and hesitate while changing gears. The cause of the failure was not yet determined. The contact was informed by the dealer that the failure was a transmission issue. No further information was available. Also, while driving 27 MPH, the service brake system failure" message suddenly displayed, and the brake pedal was hard while pressed. The parking brake was activated. Moments later the message "power steering failure" displayed and the steering wheel was difficult to turn in either direction. The vehicle was towed to the dealer who diagnosed that the brake master cylinder was faulty and needed to be replaced. The brake master cylinder was replaced, and the braking and steering failures were remedied. The manufacturer was not yet notified of the failure. The failure mileage was 3,051.

Filed Oct 25, 2019 · Steering · 135,000 miles · LA

No power steering!!

Filed Sep 5, 2018 · Airbags, Electrical · 143,339 miles · AZ

Engine dies while driving (losing propulsion, steering, brakes, etc.) and the key will not restart when turned forward (in neutral), while coasting, but will restart when the key is turned back and then forward again. In this case, coasting down and braking and turning right, possibly with right turn signal on. Died right before starting to turn the steering wheel at about 15-20 MPH. It was a clear dry 100 degree afternoon, on smooth pavement. We live on a bumpy dirt road that is just over a quarter of a mile long to reach our house. Similar to other gm ignition key / no air bag recall programs for similar model year vehicles, such as the hhr. There is no recall, but how many people does this happen to? Any deaths, yet? I don't believe the air bags may have worked, should we have been involved in an accident. There was no information shown in the diver information center display (dic) and there were warning lights on in the dashboard, to indicate that the power was on to the instrument cluster (ic), but that the motor was off. I could not select brakes and steering as being affected, but with no motor, there is no vacuum brake boosting going on, and no power steering either.

Filed Jan 4, 2017 · Steering · 70,000 miles · ND

My trailblazer sprung a major power steering fluid leak. I lost power steering after coming out of a grocery store, it was -10 degrees outside and I used my autostart while inside the store. I came out and did not have p/s and noticed a large puddle under the car. I looked under the hood when I got home, and the high pressure hose disconnected from where the high pressure hose meets the metal tube before entering the rack