The 2004 Hummer H2 has 4 safety recalls and 59 owner complaints on file with NHTSA. The most-reported problem area is electrical system (14 complaints).
Recalls4safety recalls
Complaints59filed by owners
Crashes · fires6 · 1reported in complaints
Injuries · deaths5 · 0reported in complaints
Safety recalls
Steering
NHTSA recall 06E010000 · Feb 1, 2006 · 1,360 vehicles
Problem: CERTAIN FABTECH AFTERMARKET REPLACEMENT PITMAN ARMS, P/NOS. FTS71000 AND FTS71001, INSTALLED FOR USE ON CERTAIN 2001-2006 GM C/K 2500 PICK UP TRUCKS AND SPORT UTILITY VEHICLES. THE PIN LOCATED INSIDE THE PITMAN ARM CAN SHEAR OFF DUE TO A REVERSE BENDING FATIGUE CONDITION, RESULTING IN A TOTAL LOSS OF STEERING CONTROL.
Risk: LOSS OF STEERING CONTROL COULD LEAD TO A VEHICLE CRASH WITH POTENTIAL INJURY OR DEATH.
Fix: FABTECH WILL NOTIFY OWNERS AND REPLACE THE PITMAN AND IDLER ARMS FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING FEBRUARY 2006. OWNERS MAY CONTACT FABTECH AT 909-597-7800.
Problem: ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF OCCUPANTS, ESPECIALLY SMALLER OCCUPANTS, SEATED IN THIS POSITION. APPROPRIATE USE OF A CHILD SEAT OR BOOSTER SEAT, AS RECOMMENDED FOR SMALL CHILDREN, DOES IMPROVE THE FIT CONDITION FOR THIS USER GROUP. IN ADDITION TO INSTRUCTIONS ON PROPER INFANT AND YOUNG CHILD RESTRAINT (WITH CHILD SEATS OR BOOSTERS), SPECIAL VERBIAGE FOR RESTRAINING OLDER CHILD IS INCLUDED IN THE OWNER'S MANUAL. ALSO, THE SUGGESTED SEAT BELT FIT/ROUTING FOR ADULTS, IRRESPECTIVE OF SEATING POSITION, IS DESCRIBED IN THE OWNER'S MANUAL TEXT.
Risk: A LAP PORTION OF THE SEAT BELT ROUTING THAT IS NOT LOW AND SNUG ON THE HIPS CAN ALLOW THE LAP BELT TO RIDE UP ON AN OCCUPANT'S ABDOMEN INSTEAD OF FITTING LOW AROUND THEIR HIPBONES, AND THEREFORE, CAN EXPOSE THEM TO MORE RISK OF ABDOMINAL AND INTERNAL ORGAN INJURY.
Fix: DEALERS WILL CUT OPEN THE GUIDE LOOP, REMOVE A PORTION OF THE LOOP, AND THEN THE REMAINING TWO SIDES SHOULD BE FOLDED OVER AND SECURED WITH A RETAINER FREE OF CHARGE. THE RECALL BEGAN ON JULY 21, 2005. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR HUMMER AT 1-800-732-5493.
Service brakes, hydraulic
NHTSA recall 05V043000 · Feb 8, 2005 · 77,411 vehicles
Problem: CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE ASSEMBLIES, THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.
Risk: IF A SEPARATION OCCURRED AND THE HOOD OF THE VEHICLE WERE OPEN, FRAGMENTS FROM THE ACCUMULATOR COULD CAUSE INJURY TO PEOPLE IN THE IMMEDIATE AREA. THE PRESENCE OF THIS CRACK OR FRACTURED SURFACE COULD ALLOW THE HYDRAULIC FLUID TO LEAK FROM THE ACCUMULATOR CIRCUIT OF THE BOOSTER ASSEMBLY. THE LOSS OF FLUID WOULD CAUSE INCREASED STEERING AND BRAKING EFFORT AND A CRASH MAY OCCUR WITHOUT PRIOR WARNING.
Fix: DEALERS WILL TEST THE HYDRO-BOOST ASSEMBLY FOR FUNCTIONAL OPERATION OF THE TWO-FUNCTION VALVE. IF THE HYDRO-BOOST ASSEMBLY FAILS THE TEST, DEALERS WILL REPLACE THE ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON MARCH 23, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC TRUCKS AT 1-866-996-9463 AND HUMMER AT 1-800-732-5493.
Service brakes, hydraulic
NHTSA recall 04V045000 · Feb 4, 2004 · 68,875 vehicles
Problem: CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.
Risk: CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE BRAKING OR PARKING. UNDER CERTAIN DRIVING CONDITIONS, A FRACTURED SEAL MAY REQUIRE A SLIGHT INCREASE IN THE APPLIED BRAKE PEDAL EFFORT TO ACHIEVE THE SAME VEHICLE DECELERATION RATE AS PRIOR TO THE SEAT FRACTURE.
Fix: DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339; CHEVROLET AT 1-800-630-2438; GMC AT 1-866-996-9463; OR HUMMER AT 1-866-486-6376.
Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.
What owners report
Problem area
Complaints
Crashes
Fires
Injuries
Typical mileage*
Electrical system Instrument cluster/panel; Ignition › Switch
Steering Linkages › Knuckle › Spindle › Arm; Hydraulic power assist › Power steering fluid
6
2
0
1
43,600 mi
Service brakes, hydraulic
6
2
0
1
36,000 mi
Suspension Front › Control arm › Upper ball joint; Front
3
1
0
0
59,000 mi
Structure Frame and members; Body › Hood
3
1
0
0
11,000 mi
Air bags
3
1
0
3
—
Visibility/wiper
3
0
0
0
98,720 mi
Power train Automatic transmission
2
0
0
0
—
Unknown or other
2
0
0
0
—
Electronic stability control (esc)
2
0
0
0
—
*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Recent owner complaints
Feb 10, 2026 · 210,000 milesElectrical system › Instrument panel › Speedometer/odometer Odometer Fraud. The contact purchased a 2004 Hummer H2. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 200,000. It was later discovered that the mileage on the Title was 210,000. Additionally, the contact stated she felt pressured to purchase the vehicle, signed the contract, and was unable to recoup the funds.
Oct 10, 2022Seat belts Report states my vehicle has a recall on 2nd row seatbelts.
Feb 20, 2022Engine Yesterday I turned off the alarm and unlocked the doors via the keypad. I opened the driver door and my wife opened the passenger rear door and the Hummer H2 started. No key in the ignition and the fob does not have a start button. I then got in the car and inserted the key and turned the key to ON then to off and the vehicle would not shut off. Only after cycling through the gears was I able to shut off the vehicle. I have now disconnected the battery to prevent another unwanted start.
Aug 15, 2021 · 100,000 milesSuspension › Front › Springs › Leaf spring assembly › U-bolt, leaf spring to axle The contact owns a 2004 Hummer H2.The contact stated while driving at 35MPH, the contact stated the vehicle loss of control and forward momentum to the vehicle which caused the vehicle stalled and loss motive power. The contact who is a mechanic inspected the vehicle and notice that front differential carrier bolt had snapped was detached from the frame and connection to the engine. The vehicle was towed to the contact residence then towed later to a local dealer who inspected the vehicle diagnosed the failure the same as the contact that front differential carrier bolt was damaged and to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure…
Jul 14, 2019 · 160,000 milesService 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.
Apr 8, 2019 · 205,000 milesTires TL* THE CONTACT OWNS A 2004 HUMMER H2 EQUIPPED WITH AFTERMARKET NITTO MUD GRAPPLER EXTREME TIRES, SIZE: 37/13.5/20 (NA). THE TIRES WERE PURCHASED ON NOVEMBER 28, 2018. THE CONTACT STATED THAT THE TWO FRONT TIRES WERE WORN MORE THAN HALFWAY EVER SINCE THEY WERE PURCHASED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE TIRES WERE NOT DESIGNED FOR CITY DRIVING. THE TIRES WERE NOT REPLACED. THE APPROXIMATE VEHICLE FAILURE MILEAGE WAS 205,000 AND THE TIRE FAILURE MILEAGE WAS 2,000.
Feb 15, 2019 · 122,000 milesElectrical system WHOLE CLUSTER LIGHTS UP ON CAR DOOR LOCKS DON'T WORK RADIO WON'T GO OFF AIR BAG LIGHTS ON ALL BRAKE LIGHTS ON , THIS WAS GOING DOWN A CITY STREET DRIVING
Jun 27, 2018 · 165,975 milesElectronic stability control (esc) I AM HAVING A PROBLEM WITH MY HUMMER 2004. THE LOCK LIGHT COMES ON AND MY HUMMER WILL NOT START. THIS IS SO HORRIBLE THE PROBLEM STARTED ABOUT 3 MONTHS AGO. EVERYTIME THAT LIGHT COMES ON I HAVE TO WAITE 15TO 25 MINUTES FOR IT TO START AGAIN.
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
NHTSA defect investigations
EA05017 · opened Oct 28, 2005 · closed Apr 30, 2007HUMMER H2 STEERING KNUCKLE FAILURES ODI UPGRADED THIS INVESTIGATION AT THE CONCLUSION OF PE04-080.THE ALLEGED DEFECT INVOLVES THE FAILURE OF THE STEERING KNUCKLE AT THE LOWER BALL JOINT BOSS, RESULTING IN A SEPARATION OF THE LOWER BALL JOINT FROM THE KNUCKLE.A LOWER BALL JOINT SEPARATION COULD RESULT IN A LOSS OF STEERING AND/OR A DISABLED VEHICLE. IT APPEARS THAT THE FRACTURES OF H2 STEERING KNUCKLES CAN BE ATTRIBUTED TO WHEEL/TIRE COLLISION FORCES BEING TRANSFERRED DIRECTLY TO THE STEERING KNUCKLE.THE ORIGINAL KNUCKLE DESIGN APPEARS TO BE SUFFICIENT FOR THE H2 APPLICATION.EVIDENCE FROM INSPECTED VEHICLES, PHOTOGRAPHS, POLICE REPORTS AND EDR DATA INDICATES COLLISION IMPACT EVENTS PLACED STRESS ON THE STEERING KNUCKLE CAUSING IT TO FRACTURE.FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS WITH…
PE04080 · opened Dec 2, 2004 · closed Oct 28, 2005STEERING KNUCKLE FRACTURE DURING THE PE, ODI INVESTIGATED THE HUMMER H2 FOR FRACTURES WHICH WERE OCCURRING AT THE FRONT STEERING KNUCKLE LOWER BOSS.WHEN THE KNUCKLE LOWER BOSS FRACTURES, THE LOWER BALL JOINT STUD IS RELEASED AND THE ENTIRE KNUCKLE AND WHEEL/TIRE ASSEMBLY SEPARATES FROM THE VEHICLE.ODI IS UPGRADING THIS INVESTIGATION TO GAIN A FULL TECHNICAL UNDERSTANDING OF THE FACTORS WHICH CONTRIBUTED TO THESE FAILURES.