
HUMMER H3 (2006–2010): Technical Data, DTC & Service Schedule
3.7L I5 • Gasoline
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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.
The transmission module detected a fault — check separate transmission codes.
Related codes: P0700
Rough running, idle vibration, power loss.
Related codes: P0300
Thermostat stuck open — engine does not reach operating temperature.
Related codes: P0128
System voltage below 10V — check alternator, battery or wiring.
Related codes: P0562
Check with an OBD2 scanner.
Related codes: P0011
Prices may vary by area and workshop.
Average independent-workshop hourly labour rates, to estimate repair costs in your country.
All documented fault codes for this vehicle
The most documented diagnostic codes for this model, by system and severity. Tap a code for the full guide.
53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.
Show all dashboard warning lights
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.
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?
What does fault code P0300 mean on the Hummer H3?
What does fault code P0128 mean on the Hummer H3?
What does fault code P0011 mean on the Hummer H3?
Are airbags problems common on the Hummer H3?
Are engine problems common on the Hummer H3?
Are electrical problems common on the Hummer H3?
Which OBD2 fault codes are commonly documented for the Hummer H3 (2006–2010)?
How often should the Hummer H3 (2006–2010) be serviced?
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.

