NHTSA Complaint #11341949 — 2020 GMC TERRAIN

SERVICE BRAKES issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11341949
Vehicle	2020 GMC TERRAIN
Component	SERVICE BRAKES
Date of Incident	November 25, 2019
Date Filed	July 28, 2020
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MN

Consumer Description

EVERY WEEK IT'S SOMETHING DIFFERENT. IN MOTION... NO CRUZE CONTROL. NO AUDIO. DON'T DRIVE OVER 50MPH BRAKE PROBLEM. PARKING BRAKE ENGAGES RANDOMLY AND WITHOUT USER ENGAGEMENT. NO AWD. NO STABILITY TRACTION. THIS HAPPENS SO FREQUENTLY THE DASH INDICATORS HAVE BEEN REDUCED TO 'IDIOT LIGHTS'. AT WHAT POINT DO I BECOME CONCERNED? THINGS APPEAR TO RESOLVE WHEN THE ENGINE IS TURNED OFF AND BACK ON, SOMETIMES....I COMPARE IT TO OTHER GLITCHY TECHNOLOGY. HOWEVER I POTENTIALLY COULD BE AT AN 80MPH CRAZING SPEED WHEN I DECIDE TO IGNORE THE IDIOT LIGHTS...WHAT HAPPENS WHEN A REAL PROBLEM PRESENTS AND I IGNORE THE DASH INDICATORS DO TO FREQUENT GLITCHES? I'M SO DISAPPOINTED. MY 2 PREVIOUS TERRAINS WERE 10 TIMES THE VEHICLE THE 2020 MODEL YEAR.

Related Complaints for the 2020 GMC TERRAIN

Other SERVICE BRAKES Complaints

#11709184 — January 6, 2026 — While driving down the interstate a notice popped up on my dash about the brake assist. When I attempted to slow dow...

#11705372 — December 16, 2025 — Since August 2024, my brake booster has gone a total of five times each time with the notification on the dash servic...

#11702750 — December 3, 2025 — While driving my brakes failed. I was unable to stop my car, my brake pedal became very stiff and I could not stop my...

#11702097 — November 30, 2025 — While driving on a main road at around 45mph the vacuum pump that supplies brake fluid to the brakes failed. The car ...

#11699191 — November 13, 2025 — Vacuum pump went out. It was a recall, previously on older models, but this model needs to

Recent Complaints for the 2020 GMC TERRAIN

#11716636 — ELECTRICAL SYSTEM — February 9, 2026 — The contact owns a 2020 GMC Terrain. The contact stated that while driving in cold weather at various speeds; moistur...

#11714544 — UNKNOWN OR OTHER — January 30, 2026 — I own a 2020 GMC Terrain with approximately 110,000 miles. While driving in winter, the vehicle suddenly lost cabin h...

#11713540 — ENGINE — January 27, 2026 — I noticed a sticker in driver door stating recall however no evidence. The vehicle will not pull hills, back up on a ...

#11713540 — FUEL/PROPULSION SYSTEM — January 27, 2026 — I noticed a sticker in driver door stating recall however no evidence. The vehicle will not pull hills, back up on a ...

#11713540 — STRUCTURE:BODY — January 27, 2026 — I noticed a sticker in driver door stating recall however no evidence. The vehicle will not pull hills, back up on a ...