Hummer H3 (2006–2010) Fault Codes & Service Schedule | TroubleAtlas

🌐 ▾
Hummer H3 (2006–2010)
The TroubleAtlas app on a phoneTROUBLEATLAS APP · FREEFREE APPDownload our free appDownload our free appOur shopping centre in your pocket: dozens of suppliers that deliver in your country, compared, department by department.Dozens of suppliers compared, in your country. Get it free Get it free

HUMMER H3 (2006–2010): Technical Data, DTC & Service Schedule

Built 2006–2010 · all production years covered on this single page

3.7L I5 • Gasoline

2010
Hummer H3 (2006–2010)

© Wikimedia Commons CC BY-SA

5 Common problems View details →
14 OBD2 codes View details →
13 Recalls / TSB View details →

Every figure on this Hummer H3 (2006–2010) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.

The Hummer H3 (2006–2010) is powered by a 3.7L I5 engine. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.

⚠️ COMMON PROBLEMS
Transmission fault signal (TCM)MODERATE

The transmission module detected a fault — check separate transmission codes.

Related codes: P0700

Misfire / Loss of cylinderMODERATE

Rough running, idle vibration, power loss.

Related codes: P0300

Thermostat: coolant temperature lowLOW

Thermostat stuck open — engine does not reach operating temperature.

Related codes: P0128

Battery/system voltage lowLOW

System voltage below 10V — check alternator, battery or wiring.

Related codes: P0562

P0011LOW

Check with an OBD2 scanner.

Related codes: P0011

💰 AVERAGE INDICATIVE COSTS

Prices may vary by area and workshop.

🔧
Full service
€ 120 – € 200
🛑
Full brake service
€ 180 – € 300
⚡
Spark plug replacement
€ 80 – € 140
📊
Electronic diagnosis
€ 40 – € 70
💵 WORKSHOP LABOUR RATES BY COUNTRY

Average independent-workshop hourly labour rates, to estimate repair costs in your country.

🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
📋 RECALLS & TSB (13)
NHTSA 06V417000
Air Bags › Frontal
Date: 31/10/2006
CERTAIN VEHICLES ORIGINALLY BUILT WITH CLOTH SEATS THAT WERE EQUIPPED WITH AN AUTOMATIC AIR BAG PASSENGER SENSING SYSTEM AND LATER REUPHOLSTERED WITH AFTERMARKET LEATHER SEAT COVER KITS ARE INVOLVED. TESTING HAS INDICATED THAT THE AFTERMARKET LEATHER SEAT COVERS CAN CAUSE THE PA…
NHTSA 10V179000
Structure › Body › Hood
Date: 30/04/2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTIC…
NHTSA 10V179000
Structure › Body › Hood
Date: 30/04/2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTIC…
NHTSA 10V179000
Structure › Body › Hood
Date: 30/04/2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTIC…
NHTSA 10V179000
Structure › Body › Hood
Date: 30/04/2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTIC…
NHTSA 10V179000
Structure › Body › Hood
Date: 30/04/2010
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTIC…
NHTSA R/2015/185
Fire May Occur
Date: 15-10-2015
The control module for heater blower speed may overheat during prolonged use. The plastic body may melt and in extreme instances cause a fire.
NHTSA 05V552000
Equipment › Other › Labels
Date: 07/12/2005
CERTAIN TRUCKS AND SPORT UTILITY VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SHIPPED WITH TIRE AND LOADING INFORMATION LABELS LISTING AN INACCCURATE VEHICLE CAPACITY WEIGHT.
NHTSA 15V421000
Visibility › Defroster/Defogger/Hvac System › Fan/Motor
Date: 01/07/2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blo…
NHTSA 15V421000
Visibility › Defroster/Defogger/Hvac System › Fan/Motor
Date: 01/07/2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blo…
NHTSA 15V421000
Visibility › Defroster/Defogger/Hvac System › Fan/Motor
Date: 01/07/2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blo…
NHTSA 15V421000
Visibility › Defroster/Defogger/Hvac System › Fan/Motor
Date: 01/07/2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blo…
NHTSA 15V421000
Visibility › Defroster/Defogger/Hvac System › Fan/Motor
Date: 01/07/2015
General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blo…
🔴 DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE

53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.

Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
!BRAKE
Brake System WarningBrakes
K
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
+−
Battery / Charging SystemElectrical
Low Fuel WarningFuel
!BRAKE
ABS WarningBrakes
!BRAKE
Brake Pad Wear IndicatorBrakes
!BRAKE
Electronic Parking Brake (EPB)Brakes
!
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
S
Suspension Fault / Air SuspensionSuspension
N
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
!
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
?
4WD / AWD SystemDrivetrain
L
Bulb Failure WarningLighting
L
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
AC
A/C System FaultHvac
Clutch Wear WarningTransmission
A
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
L
Rear Fog Light IndicatorLighting
A
Lane Departure / LDWS WarningADAS
A
Forward Collision Warning (FCW/AEB)ADAS
A
Blind Spot Monitor FaultADAS
A
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
!
Door Open WarningBody
!
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
📢 REPORTED COMPLAINTS & PROBLEMS (NHTSA)

247 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Hummer H3 across model years 2006–2010. These are real, verified reports submitted by vehicle owners.

8 crash reports 9 fires 9 injuries
Complaints by model year (most reported first)
Model year 200960
Model year 200860
Model year 200760
Model year 200660
Model year 20107
Most reported components (all years)
Electrical System84
Engine45
Unknown Or Other39
Structure29
Suspension21
Air Bags19
Sample reports
TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING 35 MPH, THE ENGINE OIL INDICATOR ILLUMINATED AND AN ODOR EMITTED FROM THE VEHICLE. THE CONTACT REPLACED THE OIL AND TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHERE IT WAS DISCOVERED… (MY 2007)
Was driving this vehicle about 45 mph and began to shake violently. Was able to get it slowed down and back under control. Happened two more times on my drive home and took it to an auto repair shop today and found the frame is broken on… (MY 2006)
AT ANY GIVEN TIME THE ENGINE WILL NOT CRANK. I HAVE TO WAIT EXACTLY 10 MINUTES, THEN IT WILL START AS IF NOTHING WAS WRONG. IT HAPPENS HOT OR COLD. IT HAS BEEN ABOUT 3 YEARS NOW AND STARTING TO HAPPEN MORE AND MORE OFTEN. DEALER CAN NOT… (MY 2009)
WENT OUT TO START H3, TURNED KEY, CHECK ENGINE LIGHT CAME ON, THE BATTERY LIGHT CAME ON AND THE ANTI-THEFT SYSTEM LIGHT CAME ON. PASSLOCK/SECURITY SYSTEM INSIDE THE STEERING COLUMN IS BAD. CAR WON'T START. IS UNSAFE AND WILL STRAND OWNER… (MY 2007)

Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 2006–2010.

Frequently Asked Questions

Does the Hummer H3 have any safety recalls?

Yes — 13 official NHTSA recall campaign(s) affect this model, mainly: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR, STRUCTURE:BODY:HOOD, AIR BAGS:FRONTAL. Check the recalls section for your exact year/VIN.

What does fault code P0300 mean on the Hummer H3?

Random/Multiple Cylinder Misfire Detected This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

What does fault code P0128 mean on the Hummer H3?

Coolant temperature below thermostat regulating temperature — thermostat stuck open or faulty This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

What does fault code P0011 mean on the Hummer H3?

A Camshaft Position Timing Over-Advanced or System Performance (Bank 1) This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

Are airbags problems common on the Hummer H3?

Yes — 21 of 239 real owner reports filed with NHTSA mention the airbags. One owner reported: “WE RECENTLY HAD TRANSMISSION COOLANT LINE REPLACED BY THE DEALER ABOUT 2 WEEKS AGO. LAST NIGHT, WHILE MY 17 YEAR OLD SON WAS DRIVING STRAIGHT ON A PAVED ROAD AT APPROXIMATELY 25MPH THE DRIVER AND …” See the owner-reported complaints section below for more.

Are engine problems common on the Hummer H3?

Yes — 46 of 239 real owner reports filed with NHTSA mention the engine. One owner reported: “The contact owns a 2006 Hummer H3. The contact stated that the frame was rusted on the driver's side. The check engine warning light was illuminated. The contact looked underneath the vehicle and was …” See the owner-reported complaints section below for more.

Are electrical problems common on the Hummer H3?

Yes — 66 of 239 real owner reports filed with NHTSA mention the electrical. One owner reported: “The contact owns a 2006 Hummer H3. The contact stated that the frame was rusted on the driver's side. The check engine warning light was illuminated. The contact looked underneath the vehicle and was …” See the owner-reported complaints section below for more.

Which OBD2 fault codes are commonly documented for the Hummer H3 (2006–2010)?

Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.

How often should the Hummer H3 (2006–2010) be serviced?

Routine maintenance for the Hummer H3 (2006–2010) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.

This spec sheet is updated with data verified from OEM sources and shop databases. If you spot an inaccuracy or have additional data on the Hummer H3 (2006–2010), let us know — every correction improves quality for all users.

Scroll to Top