2004 Hummer H2 problems
The Hummer H2 is an full-size off-road sport utility vehicle (SUV) that was marketed by Hummer and built in the AM General facility under contract from General Motors from 2002 until 2009. It is based on a modified GMT820 GM three-quarter-ton pickup truck in the front and a half-ton 1500 frame in the rear. A four-door pickup truck version with a midgate that opens the vehicle's interior to the external cargo bed was introduced for the 2005 model year as the H2 SUT (sport utility truck).
Background
In 2001 and 2002, GM allowed journalists to examine early versions of the Hummer H2, which were still under development at the time.
The H2 was built by AM General under contract with General Motors at AM General Commercial Assembly Plant in Mishawaka, Indiana.
Social links
Common 2004 Hummer H2 problems
Based on the information provided in the sources, here is a list of common problems reported by owners of the 2004 Hummer H2:
- Braking System Issues:
- Some owners have reported that the brake pedal can become hard to press, or that the brakes can feel spongy or unresponsive. This issue can be caused by problems with the brake booster or the master cylinder.
- Fuel System Problems:
- Owners have experienced trouble starting the vehicle or stalling out, along with inaccurate fuel gauge readings or a non-functional fuel gauge. These issues are often attributed to a faulty fuel pump or problems with the fuel sending unit.
- Transmission Concerns:
- Reports indicate that the transmission can slip or shift erratically, especially during the shift from first to second gear. This erratic behavior can be linked to issues with the transmission fluid or the transmission control module.
- Rear Differential Troubles:
- Some owners have noted problems with the rear differential, including grinding or whining noises, or complete failure. These issues can stem from problems with the bearings or gears within the differential.
It is essential for owners of the 2004 Hummer H2 to address these reported problems promptly to prevent further damage to their vehicles. Regular maintenance and inspections by qualified mechanics are recommended to mitigate these issues and ensure the longevity of the vehicle.
Is a Hummer H2 a reliable car?
The Hummer H2 has a good reputation in terms of reliability.
How long will a 2004 Hummer H2 last?
Depending on how you use them, hummers can last for a long period of time. That is because they are designed to withstand rough terrains and really bad weather. Many people get a lifetime of 300,000 to 500,000 miles from a Hummer.
Is it expensive to fix a Hummer H2?
The annual maintenance cost of a Hummer H2 is $745. Repair and maintenance costs vary depending on age, mileage, location and shop.
What are the problems with H2 transmission?
Some of the most common are slipping between gears, hard shifts, soft shifts, overheating, and the complete failure to engage a forward gear.
2004 Hummer H2 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Hummer H2 problems, we found that the most common problems with these 2023 model year vehicles are:
- Service brakes problems
- Electrical system problems
- Visibility problems
- Steering problems
- Hydraulic problems
The graph below shows statistics for all 2004 Hummer H2 vehicle components and the number of complaints received.
Latest 25 complaints 2004 Hummer H2
The NHTSA has received 58 complaints about various vehicle components related to the 2004 Hummer H2. Below are the 25 most recent complaints reported for 2004 Hummer H2 vehicles.
2022-10-10
SEAT BELTS PROBLEM
- Date Of Incident: 2022-10-10
- VIN: 5GRGN23U34H
- Components: SEAT BELTS
- Summary: Report states my vehicle has a recall on 2nd row seatbelts.
2022-02-22
ELECTRICAL SYSTEM,ENGINE PROBLEM
- Date Of Incident: 2022-02-20
- VIN: 5GRGN23U64H
- Components: ELECTRICAL SYSTEM,ENGINE
- Summary: 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.
2021-09-16
SUSPENSION PROBLEM
- Date Of Incident: 2021-08-15
- Components: SUSPENSION
- Summary: 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 mileage was at approximately 100,000. Consumer stated component that failed is the front differential to front differential carrier connection.
2019-07-16
SERVICE BRAKES PROBLEM
- Date Of Incident: 2019-07-14
- VIN: 5GRGN23U74H
- Components: SERVICE BRAKES
- Summary: 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.
2019-07-15
TIRES PROBLEM
- Date Of Incident: 2019-04-08
- VIN: 5GRGN23U84H
- Components: TIRES
- Summary: 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.
2019-02-17
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2019-02-15
- VIN: BCP1799
- Components: ELECTRICAL SYSTEM
- Summary: 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
2018-10-08
ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE PROBLEM
- Date Of Incident: 2018-06-27
- VIN: 5GRGN23U33H
- Components: ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE
- Summary: 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.
2018-04-23
SERVICE BRAKES PROBLEM
- Date Of Incident: 2018-04-22
- VIN: 5GRGN23U04H
- Components: SERVICE BRAKES
- Summary: 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
2018-02-11
SERVICE BRAKES PROBLEM
- Date Of Incident: 2018-02-11
- VIN: 5GRGN23U44H
- Components: SERVICE BRAKES
- Summary: 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.
2017-09-12
ELECTRICAL SYSTEM,SERVICE BRAKES PROBLEM
- Date Of Incident: 2017-09-11
- Fire: 1
- VIN: 5GRGN23U34H
- Components: ELECTRICAL SYSTEM,SERVICE BRAKES
- Summary: 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.
2017-08-07
SERVICE BRAKES PROBLEM
- Date Of Incident: 2017-08-06
- VIN: 5GRGN23U24H
- Components: SERVICE BRAKES
- Summary: 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
2016-10-22
POWER TRAIN PROBLEM
- Date Of Incident: 2016-09-01
- VIN: 5GRGN23U44H
- Components: POWER TRAIN
- Summary: I WAS DRIVING HOME AT NIGHT AND ABOUT A MILE BEFORE I GOT HOME MY TRANSMISSION DIDN'T SEEM TO SHIFT AS SMOOTH AS IT USUALLY DOES AND WHEN I PARKED IN MY GARAGE I GOT OUT AND TRANSMISSION FLUID WAS DRIPPING OUT FROM UNDER MY H2 VERY QUICKLY AND BY THE NEXT HOUR IT HAD EVERY BIT RUN OUT AND HUGE PUDDLE OF TRANSMISSION FLUID WAS ALL OVER MY GARAGE FLOOR. I TOOK THE SKID PLATE OFF MY H2 AND THE TRANSMISSION LINE HAD A HOLE RUSTED THROUGH IT. HAD I BEEN ANOTHER FEW MILES AWAY FROM GETTING HOME THIS COULD HAVE DESTROYED MY TRANSMISSION AND POSSIBLY CAUSED ME TO WRECK.
2016-10-13
ELECTRICAL SYSTEM,AIR BAGS,ELECTRONIC STABILITY CONTROL (ESC) PROBLEM
- Date Of Incident: 2016-09-19
- VIN: 5GRGN23U74H
- Components: ELECTRICAL SYSTEM,AIR BAGS,ELECTRONIC STABILITY CONTROL (ESC)
- Summary: I HAVE A 2004 HUMMER H2, THE ENTIRE INSTRUMENT PANEL MALFUNCTIONS.. FUEL GAUGE, SPEEDOMETER, OIL GAUGES .KEYLESS ENTRY WILL NOT WORK,ETC. REDUCED ENGINE POWER MESSAGE APPEARS AND VEHICLE AUTOMATICALLY SLOWLY REDUCING SPEED TO 15 MILES PER HR WHILE DRIVING AT HIGH SPEED. AIR BAG LIGHT WILL NOT SHUT OFF. THESE ISSUES ARE A SAFETY HAZARD AND I WOULD APPRECIATE ASSITANCE AND RESULUTION AS SOON AS POSSIBLE. THIS TRUCK HAS LESS THAN 75,000 MILES AND HAS BEEN WELL MAINTAINED. .
2016-09-01
AIR BAGS PROBLEM
- Date Of Incident: 2016-08-29
- VIN: 5GRGN23U74H
- Components: AIR BAGS
- Summary: CHECK SYSTEM OUT AND SENSING MODULE THAT CONTROLS THE INFLATABLE RESTRAINTS HAS INTERNAL FAILURE AND WILL NOT COMMUNICATE. THE SDM NEEDS REPLACED
2016-01-29
VISIBILITY/WIPER PROBLEM
- Date Of Incident: 2015-01-01
- VIN: 5GRGN23U64H
- Components: VISIBILITY/WIPER
- Summary: GM IS RECALLING 13,358 MY 2003 HUMMER H2 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH WATER CAN ENTER THE WINDSHIELD WIPER MOTOR MODULE. IF A SUFFICIENT AMOUNT OF WATER ENTERS THE MODULE, OVER TIME, THE FRONT WINDSHIELD WIPERS MAY WORK INTERMITTENTLY OR THEY MAY BECOME INOPERATIVE. READ MORE AT HTTP://WWW.CARS.COM/RECALLS/HUMMER/H2/2003/#85K348WCJDLBCQXU.99
2014-10-24
SERVICE BRAKES PROBLEM
- Date Of Incident: 2014-10-17
- VIN: 5GRGN23U44H
- Components: SERVICE BRAKES
- Summary: 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. *TR
2014-10-23
ELECTRICAL SYSTEM,UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2014-03-01
- VIN: 5GRGN23U64H
- Components: ELECTRICAL SYSTEM,UNKNOWN OR OTHER
- Summary: I FEEL THAT THIS KEY PROBLEM FALLING OUT OF THE IGNITION, KEY WILL NOT TURN ON OR OFF MAKING IT HARD TO CONTROL WHEN THE KEY IS IN THE IGNITION AND CAUSING IT NOT TO START. I HAD THIS SAME PROBLEM ON A 2003 ISUZU ASCENDER. ALSO THE "DRIVER INFORMATION CENTER" HAS QUIT WORKING RIGHT WHICH CONTROLS A LOT OF THINGS ON THE VEHICLE. I THINK IT IS A DEFECTIVE SWITCH FROM GM WHO ALSO BUILT MY 2003 ISUZU. *TR
2014-01-20
SERVICE BRAKES PROBLEM
- Date Of Incident: 2014-01-11
- VIN: 5GRGN23U84H
- Components: SERVICE BRAKES
- Summary: I WAS TRAVELING ON NJ TURNPIKE WHEN MY BRAKES DIDN'T FEEL RIGHT. ALMOST NO BRAKES STEPPING TO FLOOR. THEN BRAKE FAILURE LIGHT CAME ON. THIS IS A GARAGE KEPT VEHICLE WITH APPROX 14000 ORIGINAL MILES. APPEARS BRAKE LINES ARE CORRODED. ONE OWNER. HOW COULD THIS HAPPEN. IS THERE A RECALL HOW CAN I OBTAIN DETAILS FOR FULL RECOVERY OR REIMBURSEMENT? *TR
2013-12-03
SERVICE BRAKES PROBLEM
- Date Of Incident: 2013-08-14
- VIN: 5GRGN23U94H
- Components: SERVICE BRAKES
- Summary: TL* THE CONTACT OWNS A 2004 HUMMER H2. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE BRAKE PEDAL FAILED TO RESPOND WHEN DEPRESSED REPEATEDLY. THE VEHICLE WAS DRIVEN UPHILL IN COMBINATION OF THE EMERGENCY BRAKE BEING ENGAGED IN AN ATTEMPT TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE THE BRAKE POWER BOOSTER WAS REPLACED. IN ADDITION, THE MASTER CYLINDER AND BRAKE LINES WERE REPLACED AT DIFFERENT TIMES. THE MANUFACTURER WAS NOTIFIED OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 71,000.
2013-05-04
VISIBILITY/WIPER PROBLEM
- Date Of Incident: 2013-05-03
- VIN: 5GRGN23U84H
- Components: VISIBILITY/WIPER
- Summary: I HAVE A 2004 H2 MY FRONT WINDSHIELD WIPERS WILL NOT SHUT OFF. I HAD TO REMOVE THE WIPER FUSE IN ORDER TO DRIVE MY TRUCK ON A SUNNY DAY. THE SWITCH IS IN THE OFF POSITION BUT THEY CONTINUE TO STAY ON. I NEED HELP FAST TO CONTINUE TO DRIVE MY TRUCK IN SAFE CONDITIONS. *TR
2012-08-30
SEATS PROBLEM
- Date Of Incident: 2012-08-10
- Number Of Injuries: 1
- VIN: 5GRGN23U14H
- Components: SEATS
- Summary: WHILE DRIVING THE VEHICLE ON AN EXTENDED TRIP ON THE HIGHWAY, THE HEATING ELEMENT ON THE HEATED SEATS OVERHEATED AND BURNED THE RIGHT SIDE BELOW SHOULDER BLADE ABOVE WAIST, CAUSING INJURY TO MY BACK. I WENT TO A PHYSICIAN ,AND NOW HAVE A TWO LARGE SCARS ABOUT 4.5 INCHES IN LENGTH. I HAD THE SEAT WARMER ON A TRIP TO NEBRASKA, AND THE SEAT BURNED MY BACK. *TR
2012-05-17
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,VISIBILITY/WIPER PROBLEM
- Date Of Incident: 2012-05-11
- VIN: 5GRGN23U74H
- Components: ELECTRICAL SYSTEM,EXTERIOR LIGHTING,VISIBILITY/WIPER
- Summary: 1. VOLTAGE METER ERRATIC 2. WINDSHIELD WIPERS STOPPED WORKING, WIPERS STOPPED AND REMAIN IN THE MIDDLE OF THE WINDSHIELD. 3. DASHBOARD INSTRUMENT PANEL REMAINED ON WITH BATTERY LIGHT AND RADIO AFTER SWITCHING OFF AND LOCKING VEHICLE. IT WAS NECESSARY TO DISCONNECT THE BATTERY TO DISABLE THIS CONDITION. ON MORNING OF 5/17/2012, WE RECONNECTED THE BATTERY AND VOLTAGE METER AND INSTRUMENT PANEL WAS NORMAL. WINDSHIELD WIPERS ARE STILL INOPERABLE. *TR
2012-04-04
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2012-04-02
- Components: ELECTRICAL SYSTEM
- Summary: TL* THE CONTACT OWNS A 2004 HUMMER H2. THE CONTACT STATED THAT THE SPEEDOMETER FAILED AS HE PARKED THE VEHICLE. CONTACT NOTICED THAT THE SPEEDOMETER PROVIDED A READING OF 80 MPH INSTEAD OF 0. ON OCCASIONS, THE SPEEDOMETER WOULD RETURN TO NORMAL BUT WOULD MAINLY READ BETWEEN 80-100 MPH ERRONEOUSLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THEY ADVISED HIM THAT A MOTOR IN THE SPEEDOMETER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED NOR WAS THE MANUFACTURER CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 43,000. THE VIN WAS UNAVAILABLE.
2011-12-14
VISIBILITY PROBLEM
- Date Of Incident: 2011-11-01
- Crash: 1
- VIN: 5GRGN23U34H
- Components: VISIBILITY
- Summary: TL* THE CONTACT OWNS A 2004 HUMMER H2. THE CONTACT STATED THAT THE WIPER MOTOR FOR THE FRONT WINDSHIELD BECAME INOPERABLE WHILE THE CONTACT WAS DRIVING IN INCLEMENT WEATHER, CAUSING THE CONTACT TO LOSS CONTROL OF THE VEHICLE AND CRASH INTO A GUARD RAIL. THE DEALER AND MANUFACTURER WERE NOTIFIED OF THE FAILURE, BUT DENIED ANY ASSISTANCE WITH REPAIRS TO THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THERE WERE NO INJURIES. A POLICE REPORT WAS NOT FILED. THE FAILURE MILEAGE WAS 70,000 AND THE CURRENT MILEAGE WAS 80,000.
2011-09-20
VISIBILITY PROBLEM
- Date Of Incident: 2011-09-19
- VIN: 5GRGN23U54H
- Components: VISIBILITY
- Summary: WIPERS GO ON AND OFF WATER EMPTY NO CONTROL WENT TO GM WATER IN MODULE HAD TO GET NEW ONE 03 RECALL WHY IS THE 04 NOT ON RECALL. *TR
2004 Hummer H2 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 4 recalls for different components of the 2004 Hummer H2.
2006-02-01
- Manufacturer: FABTECH MOTORSPORTS
- Components: STEERING
- Summary: 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.
- Consequence: LOSS OF STEERING CONTROL COULD LEAD TO A VEHICLE CRASH WITH POTENTIAL INJURY OR DEATH.
- Remedy: 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.
2005-04-22
- Manufacturer: GENERAL MOTORS CORP.
- Components: SEAT BELTS:REAR/OTHER
- Summary: 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.
- Consequence: 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.
- Remedy: 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.
2005-02-08
- Manufacturer: GENERAL MOTORS CORP.
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: 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.
- Consequence: 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.
- Remedy: 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.
2004-02-04
- Manufacturer: GENERAL MOTORS CORP.
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: 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.
- Consequence: 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.
- Remedy: 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.
Negative 2004 Hummer H2 car reviews
Positive 2004 Hummer H2 car reviews
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I hope you're enjoying your Hummer! It sounds like a great vehicle - safe, reliable, and capable of hauling just about anything. Plus, I've heard that the mileage improves after the break-in period. Thanks for sharing your thoughts!
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I really appreciate this vehicle. As a former car dealer with years of experience driving thousands of vehicles, I find this one particularly exciting to drive. It's also a great off-road vehicle!
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It's a blast to drive and rides much nicer than you would think.
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I'm so glad to hear that you love the truck! It's definitely a must-have.
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Great truck! It runs well and is so much fun to drive. It's also easy to handle and looks fantastic when you fix it up.
Additional sources
More sources of information about 2004 Hummer H2 problems:
Before You Buy A Hummer H2?! Facts And A Full List Of Common ...
https://www.youtube.com/watch?v=PiSaFepFGtk
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https://www.hummerforums.com/forum/hummer-h2-8/most-common-problems-h2s-18186/
Feb 5, 2010 ... Hummer H2 - Most common problems with H2's - Recently purchased H2. What problems, are pretty common in H2s? Any recommendations, add ons, ...
Hummer H2 Common Problems (2003-2009 Excluding Hummer EV ...
https://www.youtube.com/watch?v=4eF9joEDh0A
Feb 26, 2022 ... The Hummer H2 is an iconic American vehicle. It is not going out of style anytime soon. Considering the low numbers that were produced, ...
2004 Hummer H2 Problems and Complaints - 18 Issues
https://repairpal.com/2004-hummer-h2/problems
Top 2004 Hummer H2 Problems · Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail · Check Engine Light Due to Gas Cap Issue · CD Player May ...
BUY OR BUST? Hummer H2 High Miles Review! - YouTube
https://www.youtube.com/watch?v=-82nR7nwDEE
Aug 20, 2021 ... Facts And A Full List Of Common Problems! Cole Powers•134K views · 13 ... Hummer H2 Common Problems (2003-2009 Excluding Hummer EV). abiezz•2.9 ...
Other years of Hummer H2
Are you having problems with your 2004 Hummer H2?
Casper Ortiz 2024-08-21
We've had this car for almost a year now, and we're already considering selling it. One of the main reasons is that it's just too big and hard to park in places. We also don't like the performance very much. It's slow, and the braking is bad. The interior isn't exactly up to luxury vehicle standards, and the leather doesn't feel premium like the Navigator or Lexus LX470. I wouldn't recommend buyers to purchase this car unless they do off-roading. I wish we had waited a couple of months for the redesigned Navigator to come out.