ClaimRight · Warranty Denial Guides
Hummer H2 warranty claim denied?
1,535 manufacturer communications on file
4 warranty extensions / campaigns 2002–2010 model years covered
If your Hummer H2 warranty claim was just denied, you're not alone—and the manufacturer's own records suggest the denial may not be the final word.
NHTSA's public database includes 1,535 manufacturer communications filed for the H2 across model years 2002–2010, and 4 of them are formal warranty extensions or special coverage adjustments—documents in which General Motors acknowledged specific components, such as the throttle position sensor, needed extended coverage or corrective action beyond the standard warranty window. These aren't rumors or forum complaints; they're official filings tied to your vehicle's model line.
A denial at the dealer level often reflects an initial review, not the full picture of what's already documented in these bulletins and campaigns. When a claim is re-examined alongside the specific bulletin, campaign number, or extension that applies to your vehicle, many owners find there's more room to work with than the first answer suggested.
ClaimRight offers a free assessment of your denial against the documented history for your H2. There's no cost to find out whether your situation lines up with a known issue, and our fee structure only applies if we help you reach a resolution. Let's look at what the manufacturer has already put on record about your vehicle.
What Hummer has documented for the H2
Filed with NHTSA by the manufacturer. Warranty extensions are the strongest signal — the manufacturer acknowledging a defect and extending coverage for it.
2013-12-01 · 11273B
Warranty extension Special Coverage Adjustment ? Throttle Position Sensor Replacement
Official NHTSA document →
2013-06-01 · 11273A
Warranty extension Special Coverage Adjustment ? Throttle Position Sensor Replacement
Official NHTSA document →
2008-11-01 · 08089-B
Warranty extension GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION. *PE UPDATED 2/17/09. *PE
Official NHTSA document →
2008-06-01 · 08-089
Warranty extension BUICK CADILLAC CHEVROLET GMC HUMMER OLDSMOBILE PONTIAC SAAB SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT-ANALOG ONSTAR DEACTIV...
Official NHTSA document →
· 00773
4L60E, 4L65E REPLACEMENT VALVE BODY GASKETS DOES NOT SEEM TO FIT. *TT
· 3044
GENERATION 5 ONSTAR STEERING WHEEL CONTROL FUNCTION. *TT
· 3045
SHUDDER OR BIND ON TRUNS IN 4 HI. *EH UPDATED 03-01-07. *KB
· 3046A
FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL. *TT
· 3056
CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT
· 3078
GREASE LEAK FROM FRONT HUB BEARING. *TT UPDATE. *TT
· 3089
SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT....
· 3136
SLIP CONDITION IN 2ND, 3RD, OR 4TH. DAMAGED 2-4 OR 3-4 CLUTCH. *KB UPDATED 10/31/07. *NJ
· 3170
HARSH 1-2 SHIFT. *EH
· 3215
INSTRUMENT PANEL CLUSTER GUAGES FLOAT UP AFTER IGNITION KEY TURNED OFF. VARIOUS MODELS INCLUDING 99-05 CHEVROLET, GMC AND CADILLAC FULL SIZE UTILITIES. *TT
· 3232
1999 - 2005 GEN II COLD ENGINE MISFIRE AT IDLE WITH POSSIBLE P0171 AND/OR P0174. *TT
· 3235
ENGINEERING INVESTIGATION ON THE NEW TRANSMISSION CONTROL MODULE. *EH
· 3280
RUST FOUND IN THE INJECTOR INLET FILTER DURING INJECTOR REPAIRS. *TT
· 3287B
HEATED SEAT INOPERATIVE OR SHUT OFF IN 30 SECONDS. DIAGNOSTIC TROUBLE CODES B2435, B2440, B3606 AND/OR B1825 SET IN THE DRIVERS SEAT MODULE. *TT
· 3288
POWER FOLDING MIRRORS WILL NOT FOLD INWARD. THIS ALSO INCLUDES 03-05 CHEVROLET GMC AND CADILLAC FULL SIZE TRUCKS AND UTILITIES WITH DL3. *EH
· 3310
LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE MANEUVERS. 99 - 05 CHEVROLET/GMC/CADILLAC/HUMMER H2 ALL FULL SIZE TRUCKS UTILITIES AND VANS. *TT
· 3324
SERVICE AIR SUSPENSION MESSAGE AFTER REPLACING THE AIR SUSPENSION COMPRESSOR ASSEMBLY FROM A SINGLE STAGE COMPRESSOR TO A DUAL STAGE COMPRESSOR. MAY ALSO HAVE A CURRENT OR HISTORY...
· 3348
WIND NOISE AT FRONT OF SUNROOF. *TT
· 3363
4L60E/4L65E NO REVERSE. *TT
· 3367A
REAR AIR SUSPENSION - TRIM HEIGHT TOOL SET. *TT
· 3369
TO BETTER UNDERSTAND SPRAG DAMAGE AN ENGINEERING INVESTIGATION IS BEING CONDUCTED. TYPICAL SYMPTOMS INCLUDE NO FORWARD MOVEMENT IN D4 OR D3 SHIFT LEVER POSITION. MOVEMENT CAN BE...
Common questions
My dealer denied my Hummer H2 warranty claim. Does that mean I have no other options?
A dealer denial is often based on an initial review and doesn't necessarily reflect every avenue available to you. Manufacturers sometimes file special coverage adjustments or warranty extensions for known issues after a vehicle's original warranty terms were set. Reviewing your denial against these documented filings can clarify whether your specific situation may warrant a second look.
What is a NHTSA-filed warranty extension or special coverage adjustment?
These are official communications a manufacturer files with NHTSA when it decides to extend coverage or offer free repairs for a specific component or issue, often beyond the standard warranty period. For the Hummer H2, four such filings exist, including ones addressing throttle position sensor replacement. They represent documented manufacturer acknowledgment of an issue, not a guarantee any individual claim will be approved.
Does ClaimRight charge anything upfront to review my denied claim?
No. ClaimRight provides a free initial assessment comparing your denial to the manufacturer's documented bulletins and coverage adjustments for your vehicle. Our fees are success-only, meaning they apply if and when we help you reach a resolution. There's no upfront cost to find out whether your situation aligns with a documented issue.
Check your denial free — no fee unless we get you savings →