2007 Hummer H2 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 9%of 11 total for the year
- Median mileage
- 13,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2007 Hummer H2, 9% of the 11 complaints for this model year. Where a mileage was given, the median is 13,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have a 2007 H2 Hummer that was in my driveway yesterday and my neighbor noticed that it was on fire. It was sitting there with no keys in it, turned off, not even gone anywhere the whole day. It looks like it started behind the dash or back of the engine compartment. It is completely destroyed. Do you want this vehicle for your investigation? Thank god it wasn't in my garage or my kids weren't in it.”
NHTSA complaint #10232671, filed 2008-06, 13,000 milesRelated service bulletins
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- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10241417Aug 1, 2023This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 10240359Jul 31, 2023This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 10240344Jul 31, 2023This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
Engine cooling: other model years
Other parts of the 2007 Hummer H2
3 complaintsOther or unknown
3 complaintsBody and structure
2 complaintsEngine
1 complaintsFuel system
1 complaintsSteering
1 complaintsSuspension
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2007 Hummer H2
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology