There are 10 owner-reported brakes complaints for the 2008 GMC Acadiain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2008 GMC ACADIA. THE CONTACT STATED THAT THE BRAKE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE BRAKE FLUID WAS LEAKING INTO THE POWER BUSTER. THE VEHICLE WAS REPAIRED. IN ADDITION, THE CONTACT STATED THAT WATER WAS LEAKING DOWN FROM THE SUN ROOF INTO THE ELECTRICAL FUSE BOX, CAUSING CORROSION AND THE VEHICLE WOULD FAILED TO TURN OFF. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE WATER LEAKING INTO THE FUSE BOX WAS CAUSING THE VEHICLE NOT TO TURN OFF DUE TO THE CORROSION. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 62,000. UPDATED 06/29/16*LJ UPDATED 08/02/16.*JB
TL* THE CONTACT OWNED A 2008 GMC ACADIA. WHILE DRIVING AT APPROXIMATELY 55 MPH, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO RESPOND. AS A RESULT, THE CONTACT'S VEHICLE CRASHED INTO ANOTHER VEHICLE. THE CONTACT SUSTAINED KNEE AND HEAD INJURIES AND THE PASSENGER SUSTAINED UNKNOWN INJURIES THAT NEEDED MEDICAL ATTENTION. IN ADDITION, THE DRIVER IN THE OTHER VEHICLE SUSTAINED UNKNOWN INJURIES THAT ALSO NEEDED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 120,000.
WHILE DRIVING THE STABILITRAK OFF LIGHT, SERVICE BRAKE SYSTEM LIGHT CAME ON. UPON TAKING IT TO THE DEALERSHIP THEY INFORMED ME THAT THE MASTER CYLINDER WAS LEAKING INTO THE BRAKE BOOSTER AND BOTH PARTS NEED TO BE REPLACED OR THE WHOLE BRAKE SYSTEM COULD/WOULD FAIL. THIS IS A KNOWN DEFECT WITH THE GMC ACADIA AND COULD RESULT IN A SERIOUS ACCIDENT/FATALITY. THERE WAS NO INDICATION OF AN ISSUE DUE TO AN APPARENT DEFECT IN CONSTRUCTION WHERE THE BRAKE FLUID DOES NOT LEAK EXTERNALLY, BUT RATHER INTERNALLY TO ANOTHER COMPONENT. THIS SERIOUS ISSUE HAS THE POTENTIAL TO CAUSE CATASTROPHIC DAMAGE AND SHOULD BE RECALLED BY GMC.
MY VEHICLE BEGAN GIVING A STABILITRAK NOTIFICATION. I TOOK THE VEHICLE IN TO IDENTIFY THE ISSUE I WAS TOLD BY THE GM SERVICE DEPARTMENT THAT THE MASTER CYLINDER WAS LEAKING INTO THE BOOSTER AND WOULD EVENTUALLY CAUSE THE BRAKES TO FAIL. UPON FURTHER RESEARCH I HAVE FOUND SEVERAL INDIVIDUALS WHO HAVE DEALT WITH THE SAME ISSUE. THIS IS OBVIOUSLY A FACTORY ISSUE THAT IS EVENTUALLY GOING TO CAUSE INJURY OR POSSIBLY FATALITY.
I HAVE BROUGHT MY VEHICLE IN BEFORE OUR TRIP TO MASSACHUSSETTS TO THE GM DEALER IN HASTINGS, MN AS THE STOP ENGINE NOW/FUEL PRESSURE LIGHT KEPT COMING ON ALL THE TIME. THEY TOLD ME THAT IT IS PROBABLY JUST A SENSOR ISSUE. SO I DROVE MY CAR. IN THE LAST FEW WEEKS MORE LIGHTS CAME ON SUCH AS TRACTION CONTROL IS OUT, STABILIZATION NEEDS ATTENTION, BREAKS NEED ATTENTION, AND CHECK ENGINE. SO THEY FIGURED JUST MORE SENSOR ISSUE. 9/9/14 I WAS BACKING OUT A PARKING SPOT WITH A FRIEND OF MINE AND MY POWER STEERING WAS DISABLED AND ALMOST CAUSED AND ACCIDENT WHEN THE BREAK SERVICE LIGHT CAME ON. FINALLY MY HUSBAND TOOK IT BACK TO THE DEALER TO FIND THAT NOW I NEED A NEW TIMING CHAIN AND UPDATES $2045, TRANSMISSION CONTROL MODULE W/SOLENOID $1226.58, AND MASTER CYLINDER AND BRAKE BOOSTER $690.00. THEY SHOULD HAVE CAUGHT THIS BEFORE AS GM IS WELL AWARE OF THE ISSUES ACCORDING TO COMPLAINTS ONLINE AND THE SERVICE MAN WHO TOLD ME HE SEES THIS A LOT. I NOTICED THERE IS A RECALL ON 2007 AND 2009 FOR SEVERAL OF THESE ISSUES. HAD I NOT HAVE MY HUSBAND BRING THIS IN AGAIN I AM SURE THERE WOULD HAVE BEEN A SEVERE ACCIDENT INVOLVING ME AND POSSIBLY MY CHILDREN. GM OFFERED TO PAY FOR HALF THE SERVICES BUT HONESTLY THEY KNOW THIS IS AN ISSUE WITH THEIR MODEL. TO TELL PEOPLE NOTHING IS WRONG, NOTHING IS WRONG AND BAM EVERYTHING WRONG AT JUST 120K MILES SEEMS FISHY. I WANT THIS FIXED BEFORE SOMEONE GETS HURT. I HAVE A FRIEND WITH THE SAME MODEL WITH MANY OF THE SAME ISSUES. THIS IS NOT FAIR TO LEAVE CONSUMERS IN THE DARK CONSIDERING THIS IS VEHICLE MOSTLY USED BY FAMILIES. *TR
STOPPED AT LIGHT, EMERGENCY STABILITRAK MESSAGE FLASHED, STABILITRAK LIGHT CAM ON, THEN THE DING, DING, DING THEN THE BRAKE LIGHT CAME ON, THEN ANOTHER MESSAGE: WARNING SERVICE BREAKS. A FEW SECONDS LATER THE BRAKE WARNING WENT AWAY, THE STABILITRAK LIGHT STAYED ON. I PULLED OVER, STOPPED AND TURNED OFF THE IGNITION, AND THE STABILITRAK LIGHT TURNED OFF. NO OTHER ISSUES IN FRIVING THIS DAY. THE NEXT MORNING SAME ISSUE, ABOUT 3 MILES OF DRIVING, STOPPED AT THE TRAFFIC LIGHT, THEN THE DING, DING, DING...THEN THE STABILITRAK MESSAGE AND THEN THE : WARNING SERVICE BREAKS MESSAGE. *TR
WHILE GETTING REPAIRS FOR MY 35R WAVE PLATE (ODI 10550736), THE DEALERSHIP TOLD ME THAT MY MASTER CYLINDER WAS LEAKING INTO THE POWER BRAKE BOOSTER AND NEEDED TO BE REPLACED. LIKE THE 35R WAVE PLATE, THIS SEEMS TO BE A COMMON ISSUE WITH THE ACADIA. I WAS TOLD THAT IF I DID NOT REPLACE THE MASTER CYLINDER, EVENTUALLY, THE BRAKES WOULD FAIL. *TR
TL* THE CONTACT OWNS A 2008 GMC ACADIA. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE BRAKE WARNING LAMP ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE MASTER CYLINDER NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 92,000 AND THE CURRENT MILEAGE WAS 98,000.
DRIVING AT SLOW SPEED AND WARNING LIGHT CAME ON THAT NEEDED TO SERVICE BRAKES. I TOOK IT TO THE LOCAL JOHN ELWAY CHEVY DEALERSHIP FOR SERVICE RIGHT OF WAY. THEY CAME BACK THAT THE MASTER BRAKE CYLINDER WAS LEAKING AND HAD TO BE REPLACED. I AM 63, PROBABLY HAVE HAD OVER 15 BRANDS OF CARS THAT I DRIVE TO AT LEAST 125,000 MILES AND NEVER REPLACED A MASTER BRAKE CYLINDER. I WENT ON EDMUNDS.COM ONLINE AND READ MULTIPLE COMPLAINTS FROM OTHER ACADIA OWNERS WITH EVEN NEWER MODELS WITH SAME PROBLEM. I CALLED GM AND ASKED FOR THEM TO PAY FOR REPAIR, THEY REFUSED. THE MECHANIC SHOWED ME WHERE THE MASTER BRAKE CYLINDER WAS LEAKING. HE INDICATED THAT IT IS GLUED TOGETHER. *TR
THE ABS WARNING LIGHT ON MY GMC ACADIA HAS COME ON MULTIPLE TIMES OVER THE LAST COUPLE OF YEARS. THE PROBLEM GOES AWAY AFTER ADDING BRAKE FLUID TO THE MASTER CYLINDER. AFTER SEARCHING ONLINE, THIS IS AN EXTREMELY COMMON PROBLEM WITH GMC ACADIA'S, WHERE THE MASTER CYLINDER LEAKS BRAKE FLUID INTO THE BRAKE BOOSTER. I AM CONCERNED THAT THIS IS A MAJOR SAFETY RISK, BECAUSE THE VEHICLE WILL LOSE BRAKING ABILITY AND AT ONE POINT, THE BRAKE BOOSTER IS NOT GOING TO WORK DUE TO THE FACT THAT IT IS FILLED WITH BRAKE FLUID. GM NEEDS TO STAND BEHIND ITS PRODUCTS ... NOT JUST SAY THAT THEY ARE THE "NEW" GM. THIS IS A MAJOR SAFETY HAZARD. *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 25, 2026