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What 8 owners told NHTSA about the 2015 Porsche 911 Targa 4s Heritage Edition

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 (8)Crash / fire / injury (1)Electrical system (4)Engine (3)Body & structure (1)Brakes (1)Speed control (1)Transmission & drivetrain (1)Visibility & wipers (1)

1 of 8 complaints match · Body & structure · clear filters

Mar 16, 2022Body & structure

Spoiler lift spring brackets on both sides are broken allowing the springs to get in the way of the normal performance of the spoiler. This could impede the deployment of the spoiler or the successful retraction of the spoiler, creating a reduction in downforce (grip) or creating a safety hazard of a non-fully retracted spoiler. This was identified by a third-party repair shop during maintenance work. In doing further research online I have determined that this is an extremely common issue on this model generation (991.1) that Porsche will not address.

NHTSA ODI 11456987

Working with the data? Download all 8 complaints as CSV · fetched from NHTSA July 27, 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 2015 Porsche 911 Targa 4s Heritage Edition verdict →