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What 5 owners told NHTSA about the 2019 Buick Cascada

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (5)Body & structure (3)Engine (1)Transmission & drivetrain (1)Visibility & wipers (1)

1 of 5 complaints match · Visibility & wipers · clear filters

Mar 13, 2026Visibility & wipers

I am reporting the malfunction and separation of the rear window from the cover. This is a safety issue as there is the potential for it to come off while driving and possibly causing an accident. It started small, but has grown to almost 12 inches. I have not yet found anyone who has the capacity (or desire) to fix this. And those that actually want to take on such a project are charging over 5,000! Please help!

NHTSA ODI 11724200

Working with the data? Download all 5 complaints as CSV · fetched from NHTSA July 21, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2019 Buick Cascada verdict →