HEATING/ AC FAN BLOWER HARNESS BURNT UP. A VERY COMMON PROBLEM ON AN HUMMER H3/. *TR
2006 Hummer H3 electrical problems
severe 90 complaints filed with NHTSA · avg repair $850
Complaints
90
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 9 most recent
VEHICLE LOCKED UP WHILE I WAS DRIVING - UNABLE TO START AND HAD TO HAVE TOWED TO DEALERSHIP. SERIOUS ELECTRICAL PROBLEMS FOR THE 2ND TIME. *JB
WHILE DRIVING VEHICLE LOCKED UP AND SHUT DOWN - COULD NOT RESTART AND HAD TO HAVE THE VEHICLE TOWED TO THE DEALER. *JB
TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE FAILED TO START INTERMITTENTLY. ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO CADILLAC OF NAPERVILLE (LOCATED AT 1507 OGDEN AVE, NAPERVILLE, IL 60540, (630) 355-2700) WHERE DIAGNOSTIC TESTING WAS COMPLETED, BUT A FAILURE CODE COULD NOT BE FOUND. THE VEHICLE WAS NOT REPAIRED. THE MA…
TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE DASHBOARD CAUGHT ON FIRE FROM THE PASSENGER'S SIDE OF THE HEATER. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE HARNESS, RESISTER FAN MOTOR, REPLAY, HEATER HOSES AND BAFFLE FAN NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE PROBLEM. THE A…
BLOWER MOTOR RECALL ISSUE. BURNING ELECTRICAL ODOR COMING FROM BEHIND THE GLOVE COMPARTMENT. COINCIDES WITH THE BLOWER MOTOR CONNECTOR RECALL. THIS CANNOT BE RESOLVED SOON ENOUGH.
THIS WILL BE THE THIRD BLOWER MOTOR RESISTOR THAT I HAVE HAD TO REPLACE. THIS TIME I AM REPLACING THE HARNESS BECAUSE IT BURNED UP SO BADLY ON TWO TERMINALS. GM HAS YET TO ACKNOWLEDGE THIS PROBLEM... I PAID $26 FOR THE RESISTOR, AND IT'S GOING TO BE $30 FOR THE HARNESS, AND I SAVE A TON ON THE LABOR BECAUSE I AM A MECHANIC, BUT THIS IS A POTENTIAL FIRE HAZARD. THERE IS AN AIR FLOW IN THIS AREA, AN…
PASS LOCK SYSTEM PROHIBITS TRUCK FROM STARTING. HAVE TO WAIT 10 MINUTES WHEN IT DECIDES TO WORK. THIS IS AN ONGOING ISSUE. FOR THE AMOUNT OF MONEY THIS TRUCK COST THIS SHOULD NOT BE HAPPENING CONSISTENTLY.
11/02/11 SMELL OF SOMETHING BURNING LOOKED UNDER DASH BLOWER RESISTOR AND PLUG MELTED TOGETHER HAD REPLACED ON 12/11/11 SMELT BURNING PLASTIC AGAIN HAD SAME PROBLEM BLOWER RESISTOR AND PLUG MELTED AGAIN FROM WHAT I UNDERSTAND IT IS A ON GOING PROBLEM IN THIS VEHICLE GM SHOULD BE RESPONSIBLE IN FIXING IT BEFORE THERE ARE MAJOR FIRE DAMAGE OR A DEATH. *TR
Common questions
How serious is the electrical problem on the 2006 Hummer H3?
It's a meaningful issue. 90 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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