2007 Hummer H2 Engine Problems
- Complaints
- 1about this part
- Share
- 9%of 11 total for the year
- Median mileage
- 105,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2007 Hummer H2, 9% of the 11 complaints for this model year. Where a mileage was given, the median is 105,000 miles.
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.
“The contact owns a 2007 Hummer H2. The contact stated that two bolts sheared off the exhaust manifold and the head of the engine, which resulted in a leak. The contact was concerned of the possibility of a fire. The contact also stated that the engine was abnormally loud. The contact spoke with the dealer and was told to take the vehicle in to have the bolt and exhaust manifold replaced. The vehicle was not repaired. The failure and the current mileages were 105,000.”
NHTSA complaint #10525719, filed 2013-07, 105,000 milesRelated service bulletins
- 11012907Dec 18, 2024This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 11010544Oct 7, 2024This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 11009531Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11007116Aug 6, 2024This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11007091Aug 5, 2024This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10242298Aug 10, 2023This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10211658May 2, 2022This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
- 10178949Jul 28, 2020This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC…
- 10178387Jul 27, 2020This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller…
Engine: other model years
Other parts of the 2007 Hummer H2
3 complaintsOther or unknown
3 complaintsBody and structure
2 complaintsEngine cooling
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