2021 GMC Terrain: recalls and problems

Engine2026-09-11

Vehicle information:year/make/model: 2021 gmc terrainengine type: 1.5l turbocharged enginecurrent mileage: 155,000 miles [1]description of safety defect:i am writing to report a severe, sudden engine and turbocharger failure on my 2021 gmc terrain that presents an extreme, life-threatening safety hazard. while operating the vehicle in active traffic, the engine began flashing a severe dashboard warning reading "sto

Service Brakes2026-07-12

Vacuum pump failure caused my brakes to lock up and almost caused me to wreck into another vehicle

Service Brakes2026-07-01

Driving on the garden state parkway on sunday night june 28, 2026 i proceed to cross over the ratitan bridge. there was traffic as i was going down the bridge at 70 miles an hour. when i applied the brakes the car would not stop. i had two 6 years old in the backseat. i applied 2 feet to the brake pedal and it was like a rock and the car would not slow down. i thought i was going to crash. i had to steer and lane cha

Service Brakes2026-07-01

Formal safety complaint – 2021 gmc terrain brake failure vehicle: 2021 gmc terrain incident location: garden state parkway (nj) speed: approximately 65 mph incident description while driving northbound at highway speed, i attempted to change lanes and apply my brakes. when i pressed the brake pedal, it became completely rigid (rock hard) and failed to function. i had no ability to slow the vehicle using normal brakin