There are 2 owner-reported brakes complaints for the 2009 Hummer H3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WHEN BRAKING AT STOP SIGN, HEARD GROAN NOISE FROM THE BACK BRAKES. TOOK TO DEALER 3 TIMES FOR SAME CONCERN, FIRST TIME ANSWER WAS "IT'S NORMAL, SECOND TIME, REFACE REAR DISCS, NO MORE NOISE. AFTER 3 MONTH , SAME PROBLEM, ANSWER WAS "NEED TO DRIVE MORE YOUR TRUCK.".RETURN AFTER FEW WEEKS , NOISE NOW IT'S WORSE, THEY AGAIN REFACE REAR DISCS, MY TRUCK HAVE 11000 MILES, NEVER SEEN ANYTHING LIKE THAT. NO ACCIDENTS SO FAR, BUT AT EVERY STOP OR LIGHT MY TRUCK "TURNS HEADS" OF OTHERS DRIVERS BUT NOT FOR THE LOOK, IT"S THE NOISE. *TR
THE AREA IN WHICH I RESIDE HAS BEEN IN EXTREME COLD TEMPERATURES FOR THREE DAYS, 28 BELOW ZERO IN THE MORNING THE DAYTIME HIGH 4 BELOW ZERO. THE VEHICLE HAS ANTI LOCK BRAKES. THIS MORNING 1/16/09 I APPLIED THE BRAKES TO STOP IN TRAFFIC AT @ 25 MILES PER HOUR THE VEHICLE WOULD NOT STOP IN THREE CAR LENGTHS AND MY VEHICLE COLLIDED INTO THE REAR OF THE VEHICLE IN FRONT OF ME. NO INJURIES OCCURRED . THE DAMAGE WAS MOSTLY TO THE VEHICLE THAT WAS STOPPED I FRONT OF ME. AT THIS TIME THE GM DEALER WANTS THE VEHICLE TO BE LOOKED AT AFTER IT HAS SAT OUT IN THE COLD ALL NIGHT. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026