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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
41,734 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Chevrolet Impala exhaust system problems

exhaust system problem

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2012 Chevrolet Impala Owner Comments

problem #2

Feb 192016


  • 58,168 miles


The contact owns a 2012 Chevrolet Impala. The contact stated that fuel injectors 1, 3, and 5 malfunctioned and fuel traveled straight through the exhaust system. The contact noticed a fuel odor coming from the rear exhaust. The dealer diagnosed that injector ports 1, 3, and 5 needed to be replaced. The contact was advised not to drive the vehicle. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 58,168.

- Folence, SC, USA

problem #1

Sep 192013


  • 25,300 miles
The contact owns a 2012 Chevrolet Impala. While driving approximately 40 mph, the contact heard an abnormal noise when shifting gears. The failure occurred on several occasions. The dealer stated that there was a hole in the exhaust system. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 25,300.

- Shawnee, OK, USA

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