There are 1 owner-reported body & structure complaints for the 2001 Volvo S40in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
SOMETHING, POSSIBLY A RAIL, FLEW OFF OF MY VOLVO S40 (2001) ON THE HIGHWAY. SUBSEQUENTLY, THE SUNROOF WAS UNABLE TO CLOSE BECAUSE OF GETTING HUNG UP ON THE SUNSHADE. WHEN I BROUGHT IT INTO THE SHOP, I LEARNED THAT THE RAILS WHICH HAD HELD THE SUNROOF IN PLACE HAD BECOME DETACHED FROM THE GLASS BECAUSE THE GLUE APPLIED IN THE FACTORY TO ATTACH THE METAL RAILS TO THE GLASS WAS NO LONGER EVEN VISIBLE. I DO NOT BELIEVE THE RAIL HIT ANOTHER CAR WHEN IT FLEW OFF THE CAR, BUT THIS INCIDENT COULD HAVE HAD VERY SERIOUS CONSEQUENCES.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026