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2005 HUMMER H2 Recalls, Problems & Maintenance

The 2005 HUMMER H2 has no open NHTSA recalls. Owners report 5 recurring issue clusters, led by “Windshield wiper/washer motor malfunction.” Know which Hummer you have, because they share a name and nothing else. The H2 and H3 are GM trucks underneath: oil by the Oil Life Monitor with a 12-month cap, plugs at 100,000 miles, Dex-Cool on a 5-year clock, and driveline fluids around 50,000 under hard use. The H1 is a demilitarized truck with a schedule to match: fluids and inspections on a repeating 12,000-mile cycle, fuel filter elements every 6,000 miles on the diesel, grease fittings every 3,000, plus two systems no other truck on this site has, geared hubs at each wheel and the central tire inflation system, both of which need a specialist who knows them. If you off-road any of these, run the severe schedule without debate.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2005 HUMMER H2.

Reported to NHTSA

Windshield wiper/washer motor malfunction

VISIBILITY

24 NHTSA complaints · 2008-01 → 2020-03

“TL*THE CONTACT OWNS A 2005 HUMMER H2. THE CONTACT STATED THAT THE WINDSHIELD WIPERS FAILED. THROUGH ONLINE RESEARCH, HE DISCOVERED NHTSA CAMPAIGN ID NUMBER 08V456000 (VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR)”
— Owner report, NHTSA ODI #10263163
“I OWN A 2005 HUMMER H2 AND A PROBLEM DEVELOPED WITH THE WINDSHIELD WIPERS. THEY WILL WORK INTERMITTENTLY AND AT TIMES CONTINUOUSLY ALSO THE WASHER PUMP RUNS CONTINUALLY”
— Owner report, NHTSA ODI #10321340
“WIPERS STOPPED ON THE FREEWAY. RAINING REALLY HARD. *TR”
— Owner report, NHTSA ODI #10453127

Read all complaints on NHTSA →

Speedometer and instrument cluster failure

ELECTRICAL SYSTEM

18 NHTSA complaints · 2009-01 → 2021-05

“WHILE TRAVELING ON THE MAIN ROADS THE SPEEDOMETER INTERMITTENTLY MALFUNCTIONS THEN DROPS TO ZERO, WHEREAS I'M LITERALLY UNABLE TO DETERMINE MY SPEED THIS SEEMS TO OCCUR WHEN THE ENGINE WARMS UP AND I BEEN DRIVING FOR BETTER THAN A HALF HOUR”
— Owner report, NHTSA ODI #11415074
“THE SPEEDOMETER AND TACHOMETER IN MY VEHICLE GET STUCK AT ANY SPEED. BOTH METERS EITHER MAX OUT OR DROP TO ZERO AT NUMEROUS SPEEDS”
— Owner report, NHTSA ODI #10424380
“WHILE DRIVING ON I-81 NEAR WINCHESTER, VA., I NOTICED MY SPEEDOMETER MOVING ERRATICALLY”
— Owner report, NHTSA ODI #10618748

Read all complaints on NHTSA →

Brake line corrosion and fluid loss

SERVICE BRAKES

3 NHTSA complaints · 2014-07 → 2015-04

“BRAKE LINES RUSTED THROUGH AND FAILED CATASTROPHICALLY AND WITHOUT WARNING CAUSING A COMPLETE LOSS OF BRAKING WHILE STOPPING FOR A RED LIGHT”
— Owner report, NHTSA ODI #10608878
“STEEL BRAKE LINE BURST DUE TO CORROSION AND RUST. BRAKE PEDAL WENT ALL THE WAY TO FLOOR”
— Owner report, NHTSA ODI #10618272
“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”
— Owner report, NHTSA ODI #10703960

Read all complaints on NHTSA →

Airbag sensing diagnostic module failure

AIR BAGS

11 NHTSA complaints · 2013-01 → 2018-07

“2005 HUMMER H2. CONSUMER WRITES IN REGARDS TO AIR BAG MODULE PROBLEMS. *SMD THE CONSUMER TOOK THE VEHICLE TO THE DEALER, DUE TO A RED LIGHT INDICATING THE AIR BAG NEEDED TO BE REPLACED”
— Owner report, NHTSA ODI #10553401
“TL* THE CONTACT OWNS A 2005 HUMMER H2. WHILE DRIVING AT APPROXIMATELY 30 MPH, ANOTHER VEHICLE MADE AN IMPROPER LEFT TURN AND CRASHED INTO THE FRONT DRIVER SIDE OF THE CONTACT'S VEHICLE. THE AIR BAG LIGHT WARNING INDICATOR ILLUMINATED”
— Owner report, NHTSA ODI #10683019
“A PROBLEM WITH NEARLY ALL HUMMER H2S IS ROOF LEAK, THERE IS A DRAINAGE SYSTEM TO DRAIN THE WATER THRU THE VEHICLE. THIS CLOGS UP PERIODICALLY AND THE WATER DRAINS INTO THE VEHICLE AND ENDS UP ON THE FRONT FLOORBOARD”
— Owner report, NHTSA ODI #10859926

Read all complaints on NHTSA →

Power steering fluid leak into brake booster

STEERING, SERVICE BRAKES, HYDRAULIC

11 NHTSA complaints · 2012-01 → 2026-03

“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”
— Owner report, NHTSA ODI #11373830
“WHILE DRIVING ON A CITY STREET AT APPROXIMATELY 40 MPH THE VEHICLE STARTED MAKING A LOUD NOISE (SIMILAR TO THE SOUND A DIRT BIKE ENGINE MAKES). THE SOUND BECAME LOLUDER WHEN I PRESSED THE BRAKES”
— Owner report, NHTSA ODI #10959113
“TL* THE CONTACT OWNS A 2005 HUMMER H2. THE CONTACT INSPECTED UNDERNEATH THE VEHICLE AND DETECTED A POWER STEERING FLUID LEAKAGE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO INFORMED HIM THAT THE BRAKE HYDRO-BOOST WAS LEAKING FLUID”
— Owner report, NHTSA ODI #10442503

Read all complaints on NHTSA →

Note: NHTSA also opened 1 defect investigation(s) on this vehicle that closed without action.

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 1, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Oil & Filter Change

Every 5,000 mi

H2/H3: per the Oil Life Monitor, at least annually. H1 diesels: every 3,000 to 5,000 miles depending on use, and the 6.5 turbodiesel earns the short end. Chassis grease with every change on H1s.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 7,500 mi

Rotate with oil services; these are heavy trucks that eat front tires. H1: verify CTIS inflate and deflate function at every service.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 7,500 mi

At every service. H2 brakes work hard against 6,600 pounds; budget accordingly.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 30,000 mi

GM published no interval in this era; every 2 to 3 years is sound practice, sooner with water crossings.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Fuel Filter (H1 Diesel)

Every 6,000 mi

The H1's tune-up item: drain and check at every service, replace the element every 6,000 miles. Diesel injection systems die from dirty fuel, not age.

Estimated cost — typical U.S. ranges

Dealer

~$195–$250

Shop

~$135–$175

DIY

~$20–$60

On many modern cars the filter lives inside the fuel tank and is lifetime — verify before paying for a 'service'.

Spark Plugs (H2/H3)

Every 100,000 mi

100,000 miles with the factory iridium plugs on both the H3's five-cylinder and the V8s. The H1 diesel has none.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 50,000 mi

H2/H3: inspect at oil changes, replace around 50,000 miles, far sooner in dust. H1: clean or replace every 6,000 miles; it lives in dust.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Transmission Fluid

Every 50,000 mi

50,000 miles severe, 100,000 normal on H2/H3, and almost every Hummer qualifies as severe. H1: transmission serviced on the 12,000-mile cycle.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Transfer Case Fluid

Every 50,000 mi

Every 50,000 miles under severe or off-road use on H2/H3 (Dexron VI per GM's updated spec); on the H1's 12,000-mile cycle.

Estimated cost — typical U.S. ranges

Dealer

~$105–$140

Shop

~$75–$100

DIY

~$15–$40

AWD/4WD vehicles only. Easy drain-and-fill on most platforms.

Differential Fluid (and H1 Geared Hubs)

Every 50,000 mi

Front and rear diffs around 50,000 miles with off-road or towing use. H1s add geared hubs at each corner, checked at every service; hub fluid is an H1 specialist item that must not be skipped.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

Drain plug + fill plug — straightforward DIY. AWD vehicles have two; budget for both.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Engine Coolant

Every 100,000 mi

H2/H3: Dex-Cool, 5 years or 150,000 miles. H1: the AM General schedule flushes far more often; follow it.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Drive Belt

Every 60,000 mi

Inspected at services, replaced on condition; every 6,000-mile check on the H1 schedule.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2005 HUMMER H2 reflects Hummer's published service intervals and the GM Oil Life Monitor (H2/H3) system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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