2003 Hummer H2 Fuel system Problems
- Complaints
- 2about this part
- Share
- 1%of 141 total for the year
- Median mileage
- 52,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 2003 Hummer H2, 1% of the 141 complaints for this model year. Where a mileage was given, the median is 52,000 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 pass lock keeps my vehicle from starting and stopping it at random, and has been doing this for years. Seems to happen to at least 85% of hummers out there if you check around, Hummer forum and other places. This is very serious. Stops at intersections, and could on railroad tracks. I know that you've had complaints about this for years and ignored them, saying that you haven't had other complaints. This should be addressed by your agency, as your job is to keep the citizens safe. Not pass them off as you've been doing for years on this issue with the GM pass lock system. …”
NHTSA complaint #11398236, filed 2021-02, 32,000 miles“The contact owns a 2003 Hummer H2. The engine indicator illuminated on the instrument panel and the contact took the vehicle to the repair shop. The mechanic replaced the gas cap. Immediately after the repair, she took the vehicle to the gas station and noticed that fuel was spewing out. It was discovered that the gas elbow and tank were cracked. The repair shop replaced the elbow and gas tank with a stronger metal at the cost of $1,700. The manufacturer stated that the vehicle was out of warranty; therefore, they would not assist. The contact received a call from gmc to conduct a survey. …”
NHTSA complaint #10264897, filed 2009-04, 72,000 milesRelated service bulletins
- 10208027Jan 14, 2022This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10190437Mar 30, 2021This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible…
- 10176607May 8, 2020This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10176310May 8, 2020This Preliminary information communicates the use of Winter grade fuel during the warm months of 2020 and the potential rivability issues that it can cause. The ongoing…
- 10171878Jan 2, 2020This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended…
- 10157018Sep 20, 2017This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10137635May 10, 2017This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
- 10114831Nov 15, 2016This Preliminary Information communication provides information to the technician about engine block that have a possible cylinder bore damage, scoring or out of round as the…
- 10114443Feb 27, 2016This Preliminary Information communication provides information to the technician about vehicles that have an inaccurate fuel gauge. Technician should drive the vehicle to…
- 10114954Dec 9, 2015This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find…
Fuel system: other model years
Other parts of the 2003 Hummer H2
52 complaintsElectrical system
24 complaintsBrakes
18 complaintsSteering
17 complaintsBody and structure
13 complaintsSuspension
11 complaintsTransmission and drivetrain
11 complaintsEngine cooling
5 complaintsSeats
5 complaintsWheels
5 complaintsEngine
4 complaintsVehicle speed control
3 complaints
← All problems reported for the 2003 Hummer H2
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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