Hummer

H2 Sut (2005)

2005 · Compact SUV · 2 engines
Best Engine ⚠️ Caution (2.8)
91 NHTSA Complaints
0 Recalls
1 Fire Reports
3 Crash Reports
📋 Inspection checklist

Engine Reliability Ratings

LQ4

6.0L 8-cyl
⚠️ Caution (2.8)
68 complaints 68.0 per year Gasoline
View details

Complaint Breakdown

electrical
21
other
15
brakes
12
safety systems
8
steering
7

Known Issues

Electrical System Issues (21 complaints)
Brakes Issues (12 complaints)
Safety Systems Issues (8 complaints)

Hummer H2 Sut Unidentified Engine

Avoid (1.9)
21 complaints 21.0 per year
1 fire report
View details

Complaint Breakdown

electrical
10
wheels tires
3
safety systems
3
other
2
body
1

Known Issues

Electrical System Issues (10 complaints)
Wheels & Tires Issues (3 complaints)
Safety Systems Issues (3 complaints)
Show 1 additional engine variant with limited data
These engines appear in fewer than 10 owner complaints and aren't included in the main ratings above. Low counts can mean a genuinely clean record, but they can also reflect VIN-decode anomalies in NHTSA data. Treat as informational, not as a confident rating.

L66

3.5L 6-cyl
Recommended (4.6)
2 complaints 2.0 per year
View details

Complaint Breakdown

transmission
1
electrical
1
safety systems
1

Known Issues

Transmission Issues (1 complaints)
Electrical System Issues (1 complaints)
Safety Systems Issues (1 complaints)

Vehicle-Level Issues

These issues affect the Hummer H2 Sut regardless of engine variant.

Electrical System Issues (32 complaints)
electrical critical
Brakes Issues (12 complaints)
brakes cosmetic
Safety Systems Issues (12 complaints)
safety_systems cosmetic

Alternatives in Compact SUV

Frequently Asked Questions

What are the most common 2005-2005 Hummer H2 Sut problems?

The 2005-2005 Hummer H2 Sut has accumulated 91 NHTSA complaints. The most frequently reported problem areas are Electrical System, Brakes, Safety Systems. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.

Which Hummer H2 Sut engine is most reliable?

The 2005-2005 Hummer H2 Sut was offered with 3 engine options. Based on NHTSA complaint data, the 6.0L 8-cyl has the lowest complaint density and is considered the most reliable choice for buyers.

Is the 2005-2005 Hummer H2 Sut a good used car?

The 2005-2005 Hummer H2 Sut can be a sound used car depending on trim, mileage, and maintenance history. With 91 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.

How many NHTSA complaints does the 2005-2005 Hummer H2 Sut have?

The 2005-2005 Hummer H2 Sut has 91 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.

What recalls affect the 2005-2005 Hummer H2 Sut?

There are 0 NHTSA recalls affecting some 2005-2005 Hummer H2 Sut vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.

What should I check before buying a used Hummer H2 Sut?

Before buying a used Hummer H2 Sut, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Electrical System, Brakes, Safety Systems, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.

Does the H2 Sut have NHTSA crash test ratings?

NHTSA has not published crash test ratings for the 2005 Hummer H2 Sut. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.

Data from NHTSA federal complaints database. 91 complaints analyzed. Data confidence: moderate. Last updated: 2026-05-23.

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