Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2007 Hummer H3 Reliability ReportC- grade · moderate risk · system-by-system breakdown

72/ 100

KeepScore

MODERATE RISK

Grade: C-

A distinct and capable off-roader, but budget for potential major engine and electrical repairs.

Full system breakdown + what I would do

Quick Facts · 2007 Hummer H3

  • The system most likely to surface first: engine (3.7l i5) (major severity).
  • Has 2 NHTSA recalls on record — the most notable involves the visibility:defroster/defogger/hvac system:fan/motor.
  • Scores 3 points below the strongest nearby year — the 2006 Hummer H3 earns a 75.

Is the 2007 Hummer H3 Worth Buying?

The 2007 Hummer H3 presents a unique proposition: a rugged, capable off-roader with distinctive styling, but its reliability is a mixed bag, particularly with its inline-5 engine. While the underlying components are robust, potential owners must be prepared for specific known issues that can lead to significant repair costs, pushing it into a 'proceed with caution' territory.

Biggest Strengths

  • Rugged body-on-frame construction
  • Excellent off-road capability (with proper tires)
  • Strong V8 Alpha engine option (if equipped)

What Tends to Fail First on the 2007 Hummer H3

The systems that break first on the 2007 Hummer H3. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Engine (3.7L I5)major
2
Electrical Systemmoderate
3
Front Suspension & Steeringmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

2007 Hummer H3 Recall History

2 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR

General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat.

STRUCTURE:BODY:HOOD

GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTICED, ADDITIONAL CLIPS COULD FRACTURE AND THE HOOD LOUVER COULD DETACH FROM THE VEHICLE.

What breaks on the 2007 Hummer H3?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

OwnerKeep Passport · $499 · one-time

Just bought a 2007 Hummer H3? Keep it that way.

Snap a receipt — AI logs it. Build an OwnerScore. Sell with a buyer-ready Passport dossier.

Other Hummer H3 Years to Consider

Compare KeepScores across nearby years of the Hummer H3. Click any year for its full report.

2007 Hummer H3 Alternatives

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 2007 Hummer H3

Parts and accessories matched to your 2007 Hummer H3

As an Amazon Associate I earn from qualifying purchases.

Frequently Asked Questions

Full Report

2007 Hummer H3

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

Instant delivery · No account

Complete Owner's Guide

Already own one? Get the 13-chapter owner's guide with specs, service schedules, and fluid capacities.

Compare This Vehicle

Final Step

Know every issue before you sign.

A $4.99 reliability report can catch a $3,000 problem. Full breakdown for the 2007 Hummer H3 — delivered in under 60 seconds.

OwnerKeep Passport

Just bought a 2007 Hummer H3? Keep it that way.

OwnerKeep Passport turns your Hummer H3's care history into a luxury digital vault — AI-logged receipts, an OwnerScore that pays at resale, and a buyer-ready dossier in one tap.

  • AI receipt OCR — snap and log
  • Fuel & mileage tracker
  • Tri-Score OwnerScore
  • One-tap resale dossier PDF
$499 · one-time · lifetime access · no subscription