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2008 Hummer H3

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2008 Hummer H3 do not stand out strongly from the model-year median of 91.

About this comparison →

When problems were reported

Mileage at the reported incident

87 reports with mileage · 26 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 34 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports6 fire reports5 injury reports

Engine And Engine Cooling complaints

4 reports
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54,000 miles · May 18, 2016
Engine And Engine Cooling

TL* THE CONTACT OWNS A 2008 HUMMER H3. WHEN THE VEHICLE WAS TAKEN TO BE SERVICED FOR NHTSA CAMPAIGN NUMBER: 15V421000 (VISIBILITY), THE TECHNICIAN DISCOVERED THAT TWO BOLTS LOCATED ON THE EXHAUST MANIFOLD WERE FRACTURED. AS A RESULT, CARBON MONOXIDE WAS LEAKING INSIDE THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER W…

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TL* THE CONTACT OWNS A 2008 HUMMER H3. WHEN THE VEHICLE WAS TAKEN TO BE SERVICED FOR NHTSA CAMPAIGN NUMBER: 15V421000 (VISIBILITY), THE TECHNICIAN DISCOVERED THAT TWO BOLTS LOCATED ON THE EXHAUST MANIFOLD WERE FRACTURED. AS A RESULT, CARBON MONOXIDE WAS LEAKING INSIDE THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 54,000.

NHTSA ODI #10865560

76,212 miles · Nov 21, 2013
Engine And Engine Cooling

MY RADIATOR CRACKED AND I WAS TOLD AND HAVE READ THIS IS A VERY COMMON PROBLEM WITH THE H3 HUMMERS AND CHEVY COLORADO . *TR

NHTSA ODI #10553231

103,000 miles · Oct 19, 2012
Engine And Engine Cooling

CRACK IN THE RADIATOR, HAD IT REPLACED AT A INDEPENDENT SHOP NOT KNOWING THAT THIS IS AN ON GOING PROBLEM WITH THIS MODAL HUMMER. DEFINATLY A FLAW SOMEWHERE ON GMS PART. *TR

NHTSA ODI #10481194

52,891 miles · Sep 25, 2012
Engine And Engine CoolingSteering

I HAVE A 08 HUMMER H3 AND JUST FOUND OUT THAT I HAVE A CRACKED RADIATOR. THE VEHICLE ONLY HAS 52,891 MILES ON IT. THIS SEEMS TO BE HAPPENING ALOT TO THE 07 AND 08 HUMMER H3. I THINK WE NEED A RECALL ON THIS. ALL OF THE FORUMS I HAVE SEEN HAVE HAD THEIRS CRACK IN THE SAME PLACE. ALL ON TOP OF THE RADIATORS. THIS IS SOMETHIN…

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I HAVE A 08 HUMMER H3 AND JUST FOUND OUT THAT I HAVE A CRACKED RADIATOR. THE VEHICLE ONLY HAS 52,891 MILES ON IT. THIS SEEMS TO BE HAPPENING ALOT TO THE 07 AND 08 HUMMER H3. I THINK WE NEED A RECALL ON THIS. ALL OF THE FORUMS I HAVE SEEN HAVE HAD THEIRS CRACK IN THE SAME PLACE. ALL ON TOP OF THE RADIATORS. THIS IS SOMETHING YOU MIGHT WANT TO LOOK INTO. I KNOW PERSONALLY I AM TIRED OF SOMETHING GOING WRONG ON THIS. FIRST WAS THE RACK AND PINION WITH ONLY 50,844 MILES AND NOW THIS. COME ON ITS TIME FOR A RECALL. *TR

NHTSA ODI #10476991

Official recalls

2

15V421000 · Visibility:defroster/defogger/hvac System:fan/motor

Jul 1, 2015

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.

Consequence & remedy

Consequence: If the blower motor connector module overheats, it can increase the risk of a fire.

Remedy: GM will notify owners, and dealers will replace part of the blower motor connector and harness, free of charge. The recall began February 26, 2016. Owners may contact Hummer customer service at 1-800-732-5493. GM's number for this recall is 15042.

10V179000 · Structure:body:hood

Apr 30, 2010

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.

Consequence & remedy

Consequence: IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE.

Remedy: DEALERS WILL APPLY AN ADHESIVE TO THE HOOD LOUVER TO SECURE IT TO THE HOOD. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 12, 2010. OWNERS MAY CONTACT HUMMER AT 800-732-5493 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.