2007 Hummer H3 engine problems
The 2007 Hummer H3 has 57 engine complaints filed with NHTSA — 17% of the year's total, and down from the prior model year.
57
Engine complaints
17%
Share of year
1
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“I HAD DROPPED MY DAUGHTER OFF AT SCHOOL THEN WENT TO THE GAS STATION AND I SMELLED SOMETHING LIKE IT WAS BURNING AND I THOUGHT IT WAS OUT SIDE. WHEN I CAME OUT OF THE GAS STATION THERE WAS SMOKE ROLLING OUT OF MY HUMMER . I HAD JUMPED IN AND MOVED THE VEHICLE AWAY FROM THE PUMPS SO THEY WOULD NOT…”
Common questions
How many engine complaints does the 2007 Hummer H3 have?
NHTSA has 57 complaints about the 2007 Hummer H3 engine — 17% 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.