Engine And Engine Cooling Related Problems of the 2021 Chevrolet Trailblazer

Table 1 shows four common engine and engine cooling related problems of the 2021 Chevrolet Trailblazer. The number one most common problem is related to the engine and engine cooling (37 problems). The second most common problem is related to the emission control (one problem).

Table 1. Engine And Engine Cooling related problems of Chevrolet Trailblazer


Recently reported Engine And Engine Cooling problems of the 2021 Chevrolet Trailblazer

The Engine And Engine Cooling problem

Dear chevy, I am reaching out to you again because I am desperately requesting immediate assistance with my vehicle, which has now become an extremely serious and dangerous safety concern. On Friday, [xxx], I had my vehicle towed to the dealership because of the ongoing mechanical issues I have   Read details...

The Emission Control problem

The contact owns a 2021 Chevrolet blazer. The contact stated that while driving at an undisclosed speed, the contact noticed a loud, unusual sound. No warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed with a crack between the muffler and front pipe.   Read details...

The Car Stall problem

Vehicle was taken to dealership Feb 2026 for turbo/wastegate repair (p0299). March 22, 2026, vehicle stalled and screen said to shift to neutral and push to start again. Car would crank but not start (sounds like there is no compression).   Read details...


Engine And Engine Cooling related problems in other Chevrolet Trailblazer model year vehicles:



☘ Trailblazer Service Bulletins
⚑ Trailblazer Safety Recalls
☤ Trailblazer Defect Investigations