1999 Pontiac Bonneville engine problems
The 1999 Pontiac Bonneville has 60 engine complaints filed with NHTSA — 34% of the year's total, and down from the prior model year.
60
Engine complaints
34%
Share of year
1
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“THE CONSUMER'S BROTHER EXPERIENCED THE VEHICLE BACKFIRING THE AN ENGINE FIRE. THE CONSUMER IS REQUESTING THE REIMBURSEMENT OF THE DEDUCTIBLE FOR THE INSURANCE CLAIM. THE CONSUMER FEELS THAT THERE MAY BE A NEGLIGENCE ISSUE, PER NEWS ARTICLE, THAT MAY UNCOVER MORE INCIDENTS OF THIS NATURE. REFER TO…”
Common questions
How many engine complaints does the 1999 Pontiac Bonneville have?
NHTSA has 60 complaints about the 1999 Pontiac Bonneville engine — 34% 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.