Built from official NHTSA complaint and recall data · data through 07/14/2026
High complaint levelIts most-reported problem — Electrical System — runs 2.3× the fleet median for that category across the 2547 model-years tracked on this site.
360Complaints
4Recalls
10Crashes
27Fires
8Injured
1Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Electrical System (25% of complaints) — has no NHTSA recall or open investigation on file.
Electrical System complaints here are 2.3× the median for that category across the 2547 model-years tracked on this site.
1 of the 6 most-reported categories on this page are backed by a recall or open investigation; the other 5 rest on owner reports alone.
Complaint category
Reports
Official status
Reference
Electrical System
90 · 25%
No official action
—
Engine
52 · 14.4%
No official action
—
Visibility/wiper
29 · 8.1%
No official action
—
Engine And Engine Cooling
26 · 7.2%
No official action
—
Suspension
25 · 6.9%
No official action
—
Structure:body
14 · 3.9%
Recalled
Recall 10V179000
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 360 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
IF THE PASSENGER SENSING SYSTEM MALFUNCTIONS, THE FRONT AIR BAG ON THE PASSENGER SIDE MAY BE DISABLED WHEN IT SHOULD BE ENABLED, OR ENABLED WHEN IT SHOULD BE DISABLED. IN EITHER CASE, IN THE EVENT OF A CRASH THAT REQUIRES AIR BAG DEPLOYMENT, A FRONT PASSENGER'S LEVEL OF INJURY MAY BE INCREASED. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
A MISPRINTED LABEL COULD LEAD TO IMPROPER VEHICLE LOADING SPECIFICATIONS OR TIRE INFLATION WHICH COULD RESULT IN A TIRE FAILURE, INCREASING THE RISK OF A CRASH. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“OVERHEATED AND MELTED RESISTOR AND WIRING HARNESS FOR THE HVAC BLOWER MOTOR ON A 2006 HUMMER H3. THIS HAS HAPPENED TO MY VEHICLE AND A…”NHTSA complaint 10404471 — filed 06/05/2011 · ELECTRICAL SYSTEM
“PURCHASED 2006 H3 WITH 58K ON IT. AT 61K THE A/C BLOWER WOULD INCREASE IN SPEED FOR NO REASON THEN GO BACK TO ITS SETTING…”NHTSA complaint 10399649 — filed 05/09/2011 · ELECTRICAL SYSTEM
“I HAVE A 2006 HUMMER H3, EVERY FEW WEEKS OR SO THE MOTOR WILL TURN OVER BUT WILL NOT START. I LET IT SIT FOR…”NHTSA complaint 10396621 — filed 04/18/2011 · ELECTRICAL SYSTEM
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2006 Hummer H3?
Electrical system issues are the most-reported category, cited in 90 of 360 NHTSA complaints (25%), followed by engine (52), visibility/wiper (29), unspecified/other issues (28). Complaints are unverified owner reports.
How many complaints does the 2006 Hummer H3 have?
360 complaints were on file with NHTSA as of 07/14/2026. Of those, 10 involved a crash, 27 involved a fire, and 8 reported injuries. 1 deaths were reported.
Does the 2006 Hummer H3 have any recalls?
Yes — 4 NHTSA safety recall campaigns, including campaign 15V421000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2006 Hummer H3's reported problems?
1 of the 6 most-reported complaint categories on this page is backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.
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