HUMMER Complaints

View complaints related to HUMMER. The complaints found here are submitted by actual consumers with first hand experience. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2007 HUMMER H3
    - SACRAMENTO, CA

    VEHICLE MISFIRES FREQUENTLY. ENGINE WILL NEARLY STALL AT IDLE DUE TO MISFIRES AND SHAKE THE WHOLE VEHICLE. LACK OF POWER AND EFFICIENCY. AND JUDDERING WHILE ACCELERATING. IT IS KNOWN TO GM AND MANY PEOPLE HAVE HAD TO RESORT TO CYLINDER HEAD REPLACEMENTS COSTING HUNDREDS AT A MINIMUM.

    Source: NHTSA WEB SITE
  • 2009 HUMMER H3
    - DUNMOR, KY

    RECENTLY MY 2009 HUMMER H3, HAS BEEN ACTING STRANGE. WHILE DRIVING DOWN THE ROAD, WARNING LIGHTS WILL FLASH, WILL BEEP, (TRACTION CONTROL, ABS, SERVICE 4WD, CHANGE OIL, SERVICE TPM), ALL THE WHILE ALL THINGS ELECTRICAL STOPS WORKING SUCH AS HEADLIGHTS, BRAKE LIGHTS, BLOWER FAN, HEATED SEAT, TURN SIGNALS, AND ALL THIS WHILE DRIVING DOWN THE ROAD AT NORMAL SPEED. IT STARTED DOING THIS AS THE WEATHER GOT COLDER BUT THIS H3 IS WELL MAINTAINED AND IS GARAGE KEPT AND I ONLY USE IT TO DRIVE TO AND FROM WORK. IT IS NOW A SAFETY HAZARD AND WITH THESE ISSUES WILL NOT BE ABLE TO TRADE IT IN. I HAVE NO IDEA WHERE TO START IN ORDER TO FIX IT. AFTER FINALLY DRIVING FOR 30 MIN OR SO SOMETIMES IT WILL FINALLY QUIT MESSING UP AND ACT NORMAL.

    Source: NHTSA WEB SITE
  • 2008 HUMMER H3
    - EAST HARTFORD, CT

    TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED THAT RAIN ENTERED THE VEHICLE FROM THE SUN ROOF. UPON ENTERING THE VEHICLE, WATER WAS DISCOVERED ON THE DRIVER'S SIDE FLOOR BOARD AS WELL AS ON THE REAR DRIVER' SIDE. THE CONTACT STATED THAT WATER ENTERED THE VEHICLE WHILE DRIVING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FAILURE WAS DIAGNOSED AS A CLOGGED DRAIN TUBING. THE CONTACT STATED THAT THE INDEPENDENT MECHANIC CLEARED THE CLOGGED DRAIN TUBING HOWEVER, THE FAILURE RECURRED ON SEVERAL OCCASIONS. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA FOR ASSISTANCE. THE APPROXIMATE FAILURE MILEAGE WAS 125,000.*DT *TR

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2006 HUMMER H3
    - FREDERICK, MD

    WAS MAKING A RIGHT TURN,HEARD A LOUD POP WAS ABLE TO GET HOME.UPON INSPECTION THE REAR DRIVER SIDE LEAF SPRING FRACTURED.AFTER RESEARCHING THIS MUST BE AN ONGOING ISSUE,BUT NO RECALL.

    Source: NHTSA WEB SITE
  • 2008 HUMMER H3
    - CATHEDRAL CITY, CA

    RADIATOR HAS A 8 INCH HORIZONTAL HAIR LINE CRACK THAT LETS THE COOLANT LEAK. THE CRACK IS ON TOP RIGHT CORNER( DRIVERS SIDE). THE RADIATOR TOP IS MADE FROM PLASTIC THAT IS PRONE TO CRACKING DUE TO FRAMEWORK BUMPING INTO IT CAUSING STRAIN ON RADIATOR TOP WHICH AFTER TIME CAUSES THE TOP RIGHT CORNER TO ESTABLISH A HAIRLINE CRACK AND CAUSE THE COOLANT TO LEAK. MANY HUMMER H3 VEHICLES OWNERS HAVE COMPLAINED ABOUT THIS ISSUE OF HAVING HAIRLINE CRACKS IN TOP RIGHT CORNER. HUMMER HAS REPLACED SEVERAL HUMMER OWNERS RADIATORS AT NO COST, DUE TO A DESIGN FLAW THAT THE TOP RIGHT RADIATOR BUMPS INTO THE FRAMEWORK CAUSING STRESS ON IT AND CRACKING. GM HAS UPDATED THE RADIATOR TO ACCOMMODATE FOR THIS ISSUE, BUT HAS NOT SHOWED INTEREST IN SAYING THAT THIS IS A BIG ISSUE. WHY WOULD THEY ALLOW THIS TO HAPPEN TO THOUSANDS OF HUMMER H3 OWNERS IF THEY KNOW THIS IS A DESIGN FLAW WHICH THEY ARE AWARE OF. MY HUMMER H3 ONLY HAS 24,400 MILES IN IT AND STREET DRIVEN ONLY HOW COULD THIS HAPPEN TO SOON.I HAD IT CHECKED BY MY LOCAL GM DEALER AND THEY STATED THAT YOU'RE NOT THE ONLY ONE COMPLAINING ABOUT THIS AND TO CONTACT GM REGARDING THIS ISSUE.

    Source: NHTSA WEB SITE
  • 2005 HUMMER H2
    - MARTINSBURG, WV

    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.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2008 HUMMER H3
    - MILLINGTON, TN

    SECURITY SYSTEM STOPS IT FROM CRANKING AND I HAVE TO STAND OUTSIDE THE VEHICLE WITH IT LOCKED FOR 15 MINUTES SO IT WILL RESET. WIRING BURNT UP AND I HAD IT REPLACED AND THE RADIO, A/C, AND TEMP GAUGE STILL DOESN'T WORK

    Source: NHTSA WEB SITE
  • 2009 HUMMER H3
    - HARDENVILLE, MO

    AIR BAG MODULE NOT RESPONDING AND IS DANGEROUS DUE TO THE FACT IT COULD DEPLOY AT A RANDOM TIME WHILE DRIVING. THE AIR BAG LIGHT STAYS ON AFTER THE VEHICLE IS IN MOTION CAUSING A POTENTIALLY DANGEROUS INCIDENT. ALSO HAIRLINE CRACKING IN THE RADIATOR DUE TO THE PLASTIC TOP OF THE RADIATOR TANK RUBBING ON THE VEHICLES FRAME.

    Source: NHTSA WEB SITE
  • 2003 HUMMER H2
    - SAN DIEGP, CA

    TL* THE CONTACT OWNS A 2003 HUMMER H2. THE CONTACT STATED WHILE AT A STOP LIGHT THERE WAS SMOKE SMOLDERING FROM THE FRONT PASSENGER SEAT. THE OCCUPANT NOTICED FIRE UNDER THE SEAT. THE CONTACT STATED THE INSTRUMENT CLUSTER WAS BLINKING WEEKS PRIOR. THERE WERE NO REPORTED INJURIES. THE CONTACT STATED HE MAY HAVE INHALED TOXIC FUMES. THE CONTACT, OCCUPANT, AND A STRANGER EXTINGUISHED THE FIRE WITH A FIRE EXTINGUISHER AND BOTTLES OF WATER. THE CONTACT STATED PRIOR TO THE INCIDENT THE BATTERY WAS DRAINED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE INFORMED THERE WAS A SHORTAGE WITH INSTRUMENT CLUSTER. THE FIRE DEPARTMENT WAS ON THE SCENE AND DISCONNECTED THE BATTERY. THERE WAS NO POLICE REPORT FILED. THE LOCAL DEALER AND MANUFACTURER WERE NOT CONTACTED. THE FAILURE MILEAGE WAS 206,450.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2008 HUMMER H3
    - HANCOCK, MN

    WHEN ATTEMPTING TO START THE VEHICLE, IT LOCKS ME OUT FOR 10 MIN, I HAD IT HAPPEN TWO TIMES IN A ROW WHERE I COULDN'T START IT FOR 20 MINUTES AND WAS LATE FOR WORK. I HAVE BEEN SUCK IN -20 DEGREE WEATHER WITH MY CHILD. THIS IS AN ON GOING ISSUE, AND THERE ISN'T AN ERROR CODE THAT POPS UP WHEN I HAD IT CHECKED. THIS NEEDS TO BE FIXED!! THERE IS NO WAY TO TELL WHEN IT IS GOING TO HAPPEN, THEREFORE IT HAS MADE IT VERY UNRELIABLE AND HAS PUT ME AND MY FAMILY AT RISK.

    Source: NHTSA WEB SITE