2003 Hummer H2 electrical system problems
The 2003 Hummer H2 has 25 electrical system complaints filed with NHTSA — 13% of the year's total, and the first year with meaningful reports in this category.
25
Electrical System complaints
13%
Share of year
0
Crash-involved
0
Related recalls
Electrical System complaints by year
What owners report
“I WENT TO CRANK UP MY HUMMER TO WARM IT UP DUE TO THE VERY COLD WEATHER ONCE I CRANKED THE HUMMER I IMMEDIATELY SMELLED A VERY STRONG BURNING ODOR. IT BEGIN TO SMOKE AND MY HUSBAND YELLED IT YOUR TRUCK AND I LOOKED AND SAW THE SMOKE GETTING WORSE AND THICKER. I UNHOOKED MY INFANT SON'S CAR SEAT…”
Common questions
How many electrical system complaints does the 2003 Hummer H2 have?
NHTSA has 25 complaints about the 2003 Hummer H2 electrical system — 13% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.