Total Complaints
6 filings
HUMMER H2 SUT · model year
2006 HUMMER H2 SUT
6 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2006HUMMERH2 SUT carries 6 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2006 H2 SUT is engine and engine cooling:exhaust system with 1 filings, followed by engine and engine cooling:exhaust system:manifold/header/muffler/tail pipe (1) and electrical system (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 2 investigation files overlapping the 2006 H2 SUT. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
6
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| ENGINE AND ENGINE COOLING:EXHAUST SYSTEM | 1 |
| ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE | 1 |
| ELECTRICAL SYSTEM | 1 |
| VISIBILITY/WIPER | 1 |
| ENGINE AND ENGINE COOLING | 1 |
| FUEL SYSTEM, GASOLINE | 1 |
Recent Complaints
20131029ENGINE AND ENGINE COOLING
CHECK ENGINE LIGHT CAME ON AND WOULDN'T GO OUT. TOOK IT TO THE GARAGE AND THEY PULLED UP THE CODE PO442, EVAP LEAK. THEY DID A SMOKE TEST AND FOUND OUT THE FUEL PUMP UNIT WAS ALL RUSTED OUT AND ALSO THE STRAPS HOLDING THE FUEL TANK IN WAS ALL RUSTED OUT. ONE OF THE STRAPS WAS COMPLETELY BROKEN OFF AND ONLY ONE WAS HOLDING THE TANK BUT IT WAS ALL RUSTED. CALLED A DEALER BECAUSE THIS PART SHOULD HAVE AN 80,000 MILE WARRANTY BUT THEY SAID IT WAS UNDER POWERTRAIN AND IT WOULDN'T BE COVERED. HOW COULD THIS BE POWERTRAIN WHEN IT WAS AN EMISSIONS ISSUE. THIS IS A VERY UNSAFE ISSUE. IT PROBABLY COULD OF CAUGHT ON FIRE. THE VEHICLE IS ONLY A 2006 WITH 65000 MILES ON IT SO HOW COULD THIS HAPPEN. *TR
Mileage: 65,000
20131029FUEL SYSTEM, GASOLINE
CHECK ENGINE LIGHT CAME ON AND WOULDN'T GO OUT. TOOK IT TO THE GARAGE AND THEY PULLED UP THE CODE PO442, EVAP LEAK. THEY DID A SMOKE TEST AND FOUND OUT THE FUEL PUMP UNIT WAS ALL RUSTED OUT AND ALSO THE STRAPS HOLDING THE FUEL TANK IN WAS ALL RUSTED OUT. ONE OF THE STRAPS WAS COMPLETELY BROKEN OFF AND ONLY ONE WAS HOLDING THE TANK BUT IT WAS ALL RUSTED. CALLED A DEALER BECAUSE THIS PART SHOULD HAVE AN 80,000 MILE WARRANTY BUT THEY SAID IT WAS UNDER POWERTRAIN AND IT WOULDN'T BE COVERED. HOW COULD THIS BE POWERTRAIN WHEN IT WAS AN EMISSIONS ISSUE. THIS IS A VERY UNSAFE ISSUE. IT PROBABLY COULD OF CAUGHT ON FIRE. THE VEHICLE IS ONLY A 2006 WITH 65000 MILES ON IT SO HOW COULD THIS HAPPEN. *TR
Mileage: 65,000
20121030ELECTRICAL SYSTEM
AT FIRST THE WASHERS JUST KEPT SPRAYING AND WOULDN'T STOP. I HAD TO TAKE OUT THE FUSE TO GET IT TO STOP. I RECENTLY PUT THE FUSE BACK IN AND NOW IT WON'T WORK. THE WASHERS WILL JUST START SPRAYING OUT OF THE BLUE AND THIS IS VERY DANGEROUS IF YOU ARE DRIVING DOWN THE ROAD AND YOU CAN'T GET IT TO STOP. IT DECREASES YOUR VISIBILITY. I HAVE READ THAT THEY HAVE HAD RECALLS ON THIS ISSUE. IT SOUNDS LIKE THEY HAVE ALOT OF ELECTRICAL ISSUES. ALSO THE HEATING UNIT ON MY DRIVER SEAT RANDOMLY COMES ON BY ITSELF AND WON'T SHUT OFF. I BOUGHT THIS HUMMER USED AND NEVER HAD ANY ISSUES UNTIL RECENTLY. I HAVEN'T RECEIVED ANY RECALL NOTICES BUT I WONDER IF I SHOULD OF. THIS IS DANGEROUS ISSUES. *TR
20121030VISIBILITY/WIPER
AT FIRST THE WASHERS JUST KEPT SPRAYING AND WOULDN'T STOP. I HAD TO TAKE OUT THE FUSE TO GET IT TO STOP. I RECENTLY PUT THE FUSE BACK IN AND NOW IT WON'T WORK. THE WASHERS WILL JUST START SPRAYING OUT OF THE BLUE AND THIS IS VERY DANGEROUS IF YOU ARE DRIVING DOWN THE ROAD AND YOU CAN'T GET IT TO STOP. IT DECREASES YOUR VISIBILITY. I HAVE READ THAT THEY HAVE HAD RECALLS ON THIS ISSUE. IT SOUNDS LIKE THEY HAVE ALOT OF ELECTRICAL ISSUES. ALSO THE HEATING UNIT ON MY DRIVER SEAT RANDOMLY COMES ON BY ITSELF AND WON'T SHUT OFF. I BOUGHT THIS HUMMER USED AND NEVER HAD ANY ISSUES UNTIL RECENTLY. I HAVEN'T RECEIVED ANY RECALL NOTICES BUT I WONDER IF I SHOULD OF. THIS IS DANGEROUS ISSUES. *TR
20110718ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
2006 HUMMER H2 SUT 6.0 LITER ENGINE EXHAUST MANIFOLD BOLTS BROKEN OFF. *KB
Mileage: 26,500
20110718ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
2006 HUMMER H2 SUT 6.0 LITER ENGINE EXHAUST MANIFOLD BOLTS BROKEN OFF. *KB
Mileage: 26,500
Compare 2006HUMMERH2 SUT to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2006 HUMMER H2 SUT have?▼
The 2006 HUMMER H2 SUT has 6 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2006 HUMMER H2 SUT?▼
The most-complained component for the 2006 HUMMER H2 SUT is ENGINE AND ENGINE COOLING:EXHAUST SYSTEM with 1 complaints. Other frequently reported areas include ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE and ELECTRICAL SYSTEM.
Is the 2006 HUMMER H2 SUT safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.