AT ANY GIVEN TIME THE ENGINE WILL NOT CRANK. I HAVE TO WAIT EXACTLY 10 MINUTES, THEN IT WILL START AS IF NOTHING WAS WRONG. IT HAPPENS HOT OR COLD. IT HAS BEEN ABOUT 3 YEARS NOW AND STARTING TO HAPPEN MORE AND MORE OFTEN. DEALER CAN NOT FIND ANYTHING BECAUSE THE PROBLEM IS TO INTERMITTENT. I BELIEVE IT IS THE SECURITY SYSTEM, BUT THAT IS JUST MY THOUGHTS.
2009 Hummer H3 electrical problems
severe 35 complaints filed with NHTSA · avg repair $850
Complaints
35
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 7 most recent
I REC'D A SAFETY RECALL NOTICE 8/15 FOR 2009 H3 RECALL# 15042 OR 15V421 (2 DIFFERENT # IN LETTER) FROM HUMMER . THE CONNECTOR MODULE THAT CONTROLS BLOWER MOTOR SPEED MAY OVERHEAT." IF THIS CONDITION OCCURS, THERE IS THE RISK THAT THE HEAT GENERATED COULD MELT THE PLASTIC SURROUNDING THE CONNECTOR MODULE, WHICH INCREASES THE RISK OF A FIRE" I CALLED DEALER-AND TOLD GM HAS NO "FIX" FOR THIS ISSUE…
ONE DAY WHEN I WENT TO TURN ON THE AIR CONDITIONER, THE AC WOULDN'T COME ON. WHEN I TURNED THE CONTROL KNOB TO 4, I COULD HEAR A CLICKING UNDER THE GLOVE BOX. ON CERTAIN DAYS THE BLOWER MOTOR WOULD WORK AND SOMETIMES IT WOULD QUIT RANDOMLY WHILE OPERATING. UPON INSPECTION I DISCOVERED THE BLOWER MOTOR RESISTOR HAD BECOME HOT AND MELTED TO THE CONNECTOR CAUSING CHAR TO BUILD UP INSIDE THE CONNECTIO…
VEHICLE IS PARKED AND THIS ISSUE HAPPENS WETHER OR NOT THE VEHICLE HAS BE USED, JUST AFTER TURNING IT OFF OR WHEN ITS BEEN SITTING OVERNIGHT. WHEN I TURN THE IGNITION/KEY THE VEHICLE WILL NOT START EACH TIME IT MAKES NO INDICATING/COMMON NOISE WHEN TRYING TO START IT. THE BATTERY, ALTERNATOR AND STARTER CHECK OUT AND ARE FINE. OTHER GM PRODUCTS HAVE THIS RECALL HOWEVER, THIS ONE DOES NOT.(?)
MY 2009 GM HUMMER WITH 39000 MILES HAS AN ISSUE WITH THE IGNITION/ DISABLING SYSTEM. THE VEHICLE CRANKS SOME TIME AND SOME TIMES IT DOESN'T DISPLAYING THE LOCKED SECURITY SYMBOL ON THE DASH. IT HAS COME ON WHILE DRIVING AND I'M CONCERNED IT WILL SHUT THE VEHICLE OFF. I'M ABSOLUTELY CONCERNED FOR ME AND MY FAMILIES SAFETY. I HAVE QUIT DRIVING THE VEHICLE AS MUCH AS POSSIBLE.
MY 2009 HUMMER H3 ON OCCASION WILL NOT START. IT CAN HAPPEN ANY TIME, ANY WHERE, UNDER ANY WEATHER CONDITIONS. WHEN THIS HAPPENS THE CAR RADIO, INTERIOR LIGHTS, ETC. ARE HOWEVER STILL WORKING. I THEN HAVE TO WAIT APPROX. 10 TO 15 MINUTES, AND THE VEHICLE STARTS UP LIKE NOTHING HAPPENED.. FROM DOING SOME ON-LINE RESEARCH I FOUND OUT THAT MANY, MANY, HUMMER H3 OWNERS FROM YEARS 2002 TO 2009 HAVE …
TL* THE CONTACT OWNS A 2009 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE AIR CONDITIONER SUDDENLY FAILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE CONNECTOR MODULE FOR THE HEAT, AIR, DEFROSTERS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V421000 (ELECTRICAL SYSTEM) HOWEVER…
Common questions
How serious is the electrical problem on the 2009 Hummer H3?
It's a meaningful issue. 35 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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