49 of the 429 complaints filed about the Hummer H2 are about the braking system — 11% of everything owners reported. The worst model year for it is 2003.
49
Complaints
11%
Share of all complaints
2
Crashes
1
Fires
SERVICE BRAKES
P code P0872 6L50/6L80/6L90 - Automatic Transmission
NHTSA complaint #11648738 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
The contact owns a 2005 Hummer H2. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed, and the brakes made a whistling sound. The contact, an independent mechanic, diagnosed that the brake booster needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that there was no recall associated with the VIN. The failure mileage was approximately 70,000.
NHTSA complaint #11521346 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
TL* THE CONTACT OWNS A 2003 HUMMER H2. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 15 MPH, THE BRAKE PEDAL WAS DEPRESSED AND WENT TO THE FLOORBOARD. THE CONTACT VEHICLE MOVED INTO THE INTERSECTION. THE CONTACT WAS ABLE BRING THE VEHICLE TO A STOP. THE CONTACT WAS ABLE TO MOVE THE VEHICLE TO SAFETY. THE CONTACT INSPECTED THE VEHICLE HIMSELF AND FOUND THAT THE BRAKE FLUID WAS LEAKING FROM THE BRAKE MASTER CYLINDER. THE VEHICLE WAS NOT TAKEN TO THE DEALER TO HAVE A DIAGNOSTIC TEST PERFORMED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 160,000.
NHTSA complaint #11397730 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
TL* THE CONTACT OWNS A 2005 HUMMER H2. THE CONTACT STATED THAT WHILE DRIVING THE VEHICLE, THE POWER STEERING FAILED, CAUSING THE STEERING WHEEL TO BECOME VERY DIFFICULT TO TURN IN EITHER DIRECTION. ADDITIONALLY, THE POWER STEERING FLUID LEAKED UNTO THE HYDRO-BOOST BRAKING SYSTEM, CAUSING THE BRAKES TO MALFUNCTION AND BECOME SPONGY, EXTENDING THE BRAKING DISTANCE. THE CONTACT WORKS AS AN INDEPENDENT MECHANIC AND CONFIRMED THE CAUSES OF THE FAILURES. THE LOCAL DEALER APPLE VALLEY CHEVROLET LOCATED AT 650 FOXCROFT AVE, MARTINSBURG, WV 25401 AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NOT INCLUDED IN THE NHTSA CAMPAIGN NUMBER: 05V043000 (SERVICE BRAKES, HYDRAULIC). THE CONTACT STATED THAT THE VEHICLE HAD EXPERIENCED THE FAILURE LISTED IN THE RECALL. THE FAILURE MILEAGE WAS 240,000.
NHTSA complaint #11373830 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2004 HUMMER H2. WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD. THE STOPPING DISTANCE WAS EXTENDED. WHILE EXAMINING THE VEHICLE, THE CONTACT NOTICED BRAKE FLUID LEAKING UNDER THE SUBFRAME. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE LOCAL DEALER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 160,000.
NHTSA complaint #11232360 — an unverified report by a vehicle owner.
SERVICE BRAKES
RIGHT FRONT BRAKE HOSE RUBBING ON WHEEL AND CUTTING LOSS OF FLUID AND BRAKING EFFETENESS WAS MOVING IN DRIVEWAY WHEN IT POPPED THE MILEAGE IS 29236
NHTSA complaint #11089607 — an unverified report by a vehicle owner.
SERVICE BRAKES
BRAKES LINES UNDER VEHICLE HAVE EXCESSIVE CORROSION AND HAVE FINALLY CRACKED, RESULTING IN COMPLETE BRAKE FAILURE. EVENT DID NOT RESULT IN ACCIDENT. VEHICLE HAS NOT BEEN OPERATED IN A NORTHERN SNOW REGION NOR COASTAL AREA.
NHTSA complaint #11072214 — an unverified report by a vehicle owner.
SERVICE BRAKES
AS I WAS DRIVING ON I 5 IN OREGON I EXPERIENCED A COMPLETE FAILURE OF THE ELECTRICAL SYSTEM AND BRAKE SYSTEMS. THE VEHICLE WAS ON CRUISE CONTROL AND WHEN I DISENGAGED IT ALL OF THE SAFETY WARNING LIGHT APPEARED ON THE DASHBOARD. I PRESSED ON THE BRAKES AND THEY WERE A COMPLETE FAILURE ALSO. AT THIS TIME THE DASHBOARD LIGHTS AND CONTROLS WENT OFF AND I LOSS POWER. I WAS ABLE TO GET TO THE SIDE OF THE ROAD WHEN I NOTICED SMOKE COMING FROM UNDER THE HOOD. I GOT MY DAUGHTER OUT OF THE VEHICLE TO A SAFE DISTANCE AND OPENED THE HOOD AND THE MAIN FUSE RELAY PANEL WAS FULLY ENGULFED IN FIRE. I CALLED 911. IN THE APPROX. 5 MIN. THE TIME THE FIRE TRUCK ARRIVED THE TRUCK WAS CONSUMED AND FULLY GUTTED OUT FROM THE FIRE.
NHTSA complaint #11022893 — an unverified report by a vehicle owner.
SERVICE BRAKES
MY 2004 H2 HAS A SERIOUS RUSTING ISSUE WITH THE BRAKE LINES. ON 2 SEPARATE OCCASIONS I HAVE BEEN DRIVING ALONG AT APPROXIMATELY 30 MPG AND HIT THE BRAKES ONLY TO HAVE THEM GO ALL THE WAY TO THE FLOOR. LUCKILY I DID NOT AN ACCIDENT. IN BOTH OCCASIONS THE LINE BURST DUE TO RUST. MY VEH. HAS 103,000.00 LIGHTLY DRIVEN. GM NEEDS TO COME OUT AND ADMIT THEY HAVE A PROBLEM WITH RUSTING BRAKE LIENS BEFORE SOMEONE GETS KILLED
NHTSA complaint #11013344 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2003 HUMMER H2. AFTER COMING TO A STOP, THE BRAKE PEDAL SUDDENLY TRAVELED TO THE FLOORBOARD. THE CONTACT PULLED THE VEHICLE INTO A PARKING LOT NEARBY AND NOTICED BRAKE FLUID LEAKING OUTSIDE THE VEHICLE. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC WHO DIAGNOSED THAT THE BRAKE LINE WAS RUSTED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 74,000. UPDATED 05/23/2017*JS UPDATED 06/08/17*LJ
NHTSA complaint #10970960 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2003 HUMMER H2. WHILE DRIVING APPROXIMATELY 15 MPH, THE TRACTION CONTROL AND ABS WARNING INDICATORS ILLUMINATED. THE FAILURE RECURRED WHENEVER DRIVING OVER 15 MPH. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED, BUT NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE APPROXIMATE FAILURE MILEAGE WAS 116,500.
NHTSA complaint #10863414 — an unverified report by a vehicle owner.
SERVICE BRAKES, HYDRAULIC
TL* THE CONTACT OWNS A 2005 HUMMER H2. THE CONTACT STATED THAT WHILE COMING TO A STOP, THE BRAKES FAILED TO RESPOND WHEN THE BRAKE PEDAL WAS DEPRESSED. IN ADDITION, AN ABNORMAL SQUEAKING SOUND WAS HEARD FROM THE STEERING WHEEL. THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE HYDRAULIC BRAKE BOOSTER ACCUMULATOR CRACKED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE VIN WAS NOT INCLUDED IN THE NHTSA CAMPAIGN NUMBER: 05V043000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 81,500.
NHTSA complaint #10806816 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2006 HUMMER H2. THE CONTACT STATED THAT THE BRAKE LINES WERE CORRODED, WHICH CAUSED THEM TO RUPTURE AND LEAK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 111,000.
NHTSA complaint #10788277 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2006 HUMMER H2. THE CONTACT STATED THAT THE BRAKE PEDAL WAS APPLIED MORE THAN ONCE AND IT TRAVELED TO THE FLOORBOARD. WHILE DRIVING AT 60 MPH, THE FRONT PASSENGER SIDE BRAKE LINE WAS RUSTED AND FRACTURED. AS A RESULT, THE VEHICLE WAS DIFFICULT TO MANEUVER. THE VEHICLE WAS CAUTIOUSLY DRIVEN TO AN INDEPENDENT MECHANIC WHO REPLACED THE ANTI-LOCK BRAKE SYSTEM AND THE FRONT PASSENGER SIDE BRAKE LINE. THE VIN WAS NOT AVAILABLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000.
NHTSA complaint #10786351 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2005 HUMMER H2. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE CONTACT ALSO STATED THAT THERE WAS FLUID ON THE GROUND. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE POWER STEERING PUMP NEEDED TO BE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 05V043000 (SERVICE BRAKES, HYDRAULIC). THE APPROXIMATE FAILURE MILEAGE WAS 73,600.
NHTSA complaint #10782561 — an unverified report by a vehicle owner.
SERVICE BRAKES
TL* THE CONTACT OWNS A 2005 HUMMER H2. THE CONTACT STATED THAT WHILE MAKING A TURN WITH THE BRAKE PEDAL DEPRESSED, THE POWER STEERING AND BRAKES MALFUNCTIONED WITHOUT ANY WARNINGS. THE CONTACT WAS ABLE TO REGAIN CONTROL OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER, WHERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER MALFUNCTIONED AND NEED TO BE REPLACED. THERE WAS A RECALL THAT THE CONTACT STATED EXHIBITED THE SAME SYMPTOMS OF THE FAILURE LISTED IN NHTSA CAMPAIGN NUMBER: 05V043000 (SERVICE BRAKES, HYDRAULIC); HOWEVER, THE VIN WAS NOT INCLUDED IN THAT RECALL. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 140,000.
NHTSA complaint #10746913 — an unverified report by a vehicle owner.
SERVICE BRAKES
WE PURCHASED THIS H2 IN DECEMBER 2014 AND BY FEB 2015 NOTICED A GRUMBLY SOUND IN THE BRAKES. WE TOOK IT IN FOR SERVICE AND THE TECH TOLD US THE WHOLE UNDERCARRIAGE WAS RUSTED AND ALL THE BRAKE LINES WERE RUSTED THRU AND HAD TO BE REPLACED. SINCE SOME OF THE LINES WERE NO LONGER AVAILABLE, THEY HAD TO "CREATE" THEM. THIS WAS A COSTLY FIX AND WHO KNOWS WHAT THE SAFETY IMPACT COULD HAVE BEEN.
NHTSA complaint #10717606 — an unverified report by a vehicle owner.
SERVICE BRAKES
ON FEBRUARY 3, 2015, I NOTICED MY BRAKES PEDAL WERE GOING CLOSER TO THE FLOOR. I GOT HOME AND NOTICED THAT MY BRAKE LINES AT THE REAR WAS LEAKING BRAKE FLUID ONTO MY DRIVEWAY. I ATTEMPTED TO PULL THE VEHICLE UP FURTHER IN THE DRIVEWAY AND THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. I HAD TO PUSH IN THE EMERGENCY BRAKE. ON FEBRUARY THE 7TH I CONTACTED MY GMC DEALER IN WENDELL, NC. I ADVISED THEM THAT I WAS GETTING AAA TO TOW MY VEHICLE IN DUE TO BRAKE LINE PROBLEMS. THE DEALER REPAIRED MY REAR AND FRONT BRAKE LINES AND CHARGED ME A TOTAL OF 1,949.00 AND SAID THAT THEIR WAS NOT A RECALL ON THIS PART.
NHTSA complaint #10703960 — an unverified report by a vehicle owner.
SERVICE BRAKES
FAILURE OF BRAKING SYSTEM DUE TO COMPLETE EROSION OF BRAKE LINES. EXTREMELY DANGEROUS SAFETY ISSUE ALONG WITH VERY COSTLY REPAIRS FOR A VEHICLE CONSUMERS BELIEVED TO BE "WELL-MADE". I CAN'T UNDERSTAND WHY THE SUBSTANDARD DEFECTIVE PARTS AND ASSOCIATED REPAIRS HAVE NOT BEEN A DETERMINED AS A RECALL. BASED UPON THE AMOUNT OF COMPLAINTS FOR THIS PROBLEM, IT IS OBVIOUS THAT THE CONSUMERS THAT PAID FOR A "HIGH-END" VEHICLE WERE DUPED!!!
NHTSA complaint #10692224 — an unverified report by a vehicle owner.
SERVICE BRAKES
I WAS PULLING OUT OF MY DRIVEWAY IN MY HUMMER H2 WHEN THE BRAKE PEDAL WENT TO THE FLOOR. I GOT OUT OF MY H2 AND NOTICED A LARGE AMOUNT OF BRAKE FLUID RUNNING OUT FROM UNDER THE REAR END NEAR THE LEFT REAR WHEEL. I LOOKED UNDER THE VEHICLE AND NOTICED A BRAKE LINE WAS RUSTED IN TWO. I CHECKED UNDER THE HOOD AND SAW THAT THE BRAKE FLUID RESERVOIR WAS COMPLETELY EMPTY.
NHTSA complaint #10649650 — an unverified report by a vehicle owner.