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What 116 owners told NHTSA about the 2017 Chevrolet Impala

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 (116)Crash / fire / injury (9)Engine (21)Airbags (17)Electrical system (15)Transmission & drivetrain (12)Steering (10)Lights (6)Brakes (4)Fuel system (4)Seats (3)Visibility & wipers (3)

2 of 116 complaints match · Engine · crash/fire/injury only · clear filters

May 14, 2021Engine1 injury

THE CONTACT'S WIFE OWNS A 2017 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, SHE WOULD SMELL AN ABNORMAL, EXHAUST ODOR INSIDE THE VEHICLE'S CABIN WITHOUT WARNING. THE CONTACT THEN STATED THAT WHILE DRIVING AT 50 MPH, HE HAD HEARD A LOUD NOISE EMIT FROM THE ENGINE WITHOUT WARNING. THE CONTACT THEN PULLED OFF TO THE SHOULDER AND UPON INSPECTION OF THE HOOD, THE CONTACT DISCOVERED THE CATALYTIC CONVERTER HAD BROKEN OFF THE ENGINE. THE CONTACT WAS ABLE TO SLOWLY DRIVE THE VEHICLE HOME AND THEN CALLED EL DORADO CHEVROLET(2300 N CENTRAL EXPY, MCKINNEY, TX 75070) WHERE HE WAS INFORMED HIM THAT THERE WERE ZERO RECALLS ON THE VEHICLE; THE CONTACT WAS INFORMED TO BRING IN THE VEHICLE FOR INSPECTION. UPON INVESTIGATION, THE CONTACT DISCOVERED A TECHNICAL SERVICE BULLETIN NHTSA ID NUMBER:10116660 WHICH HE LINKED TO HIS FAILURE. RECENTLY, THE CONTACT'S WIFE WAS DIAGNOSED WITH LUNG CANCER AND THE CONTACT HAD LINKED THE PROLONGED EXPOSURE TO THE EXHAUST ODOR AS THE POSSIBLE CAUSE OF THE DIAGNOSIS. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND OFFERED NO ASSISTANCE. THE VEHICLE HAD YET TO BE REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ODI 11416551

Aug 29, 2018Transmission & drivetrainEngineCrash

TL* THE CONTACT OWNS A 2017 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE STALLED AND JERKED FORWARD. IN ADDITION, THE EMISSION SYSTEM AND CHECK ENGINE WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO CREST CHEVROLET (909 W 21ST ST, SAN BERNARDINO, CA 92405, 909-713-6481) WHERE THE BATTERY WAS REPLACED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER WHERE IT WAS DIAGNOSED THAT THERE WAS AN UNKNOWN VALVE LEAK. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE JERKED AND CAUSED THE CONTACT TO LOSE CONTROL. THE VEHICLE CRASHED INTO A CONCRETE DIVIDER AND THE FRONT DRIVER'S SIDE TIRE BLEW OUT. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS DAMAGED AND TOWED TO THE SAME DEALER. A POLICE REPORT WAS NOT FILED. THERE WERE NO INJURIES. THE MANUFACTURER WAS CALLED, BUT NO ONE ANSWERED THE PHONE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 37,000.

NHTSA ODI 11123322

Working with the data? Download all 116 complaints as CSV · fetched from NHTSA July 19, 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 2017 Chevrolet Impala verdict →