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What 505 owners told NHTSA about the 2011 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 (505)Crash / fire / injury (30)Electronic Stability Control (esc) (132)Engine (125)Electrical system (95)Seats (77)Speed control (69)Transmission & drivetrain (64)Brakes (38)Airbags (37)Steering (35)Visibility & wipers (28)

1 of 505 complaints match · Speed control · crash/fire/injury only · clear filters

Sep 6, 2014Speed controlElectronic Stability Control (esc)BrakesFire

DEC 2013 VEHICLE HIT POT HOLE WHILE BRAKING AT APPROACHING INTERSECTION, AFTER THAT WARNING LIGHTS STARTED FLASHING ABS BRAKES/TRACT CONTROL/STAB CONTROL, I WAS UNABLE TO BRAKE, THEN SHUT DOWN. SINCE THEN TEMP GAUGE WENT BAD N WAS REPLACED. THE 3 ABOVE DASH WARNING LIGHTS CONTINUED INTERMITTENTLY, WORSE WHEN IT RAINED. AT TAKE OFFS N TURNS CAR WOULD JAR N ABS BRAKE SYSTEM WOULD PULSATE(GRABS). HUB/SPEED SENSOR WAS REPLACED, THIS DID NOT HELP. ACCESSORY OUTLETS, WHEN CONTAINED W A CHARGER, DOESN'T MAINTAIN CONTACT W POWER SOURCE (SUCH AS DISCONNECTION/LOOSE CONNECTION), CAUSING POWER SURGE RESULTING IN 2 IPHONES TO HAVE BAD AUX PORTS. MAY 2014 BLOWER MOTOR STARTED INTERMITTENTLY NOT WORKING FOR SECONDS, THEN MINUTES UNTIL TODAY SEPT 6TH, 2014 WHEN SOMETHING UNDER-DASH (NEAR BLOWER MOTOR) OVERHEATED FILLING CAR WITH SMOKE, THEN CAR SHUT DOWN WHILE MOVING ONCE AGAIN, CAR SMELLS AWFUL FROM THE BURNING! CAR HAS BEEN A LEMON AND NOT COVERED UNDER POWER TRAIN! SEEMS LIKE AUXILIARY ELECT FUSE BOX(PASSENGER RT FOOT BOARD), AND HARNESS IS SHOT AS WELL AS WHICHEVER HARNESS IS SENDING POWER TO SPEED SENSOR, AMONG MANY OTHER THINGS I COULD NOT MENTION (PROBLEMS/DEFECTS) DUE TO SO MANY OTHER ISSUES W THIS 2011 IMPALA WHICH IS NOW WORTH 7000 AS TRADE AT CHEVY, I PAID 13500 ON OCT14, 2014! I'VE CHECKED SEVERAL GROUND CONNECTS N THEY SEEM OKAY. *TR

NHTSA ODI 10631294

Working with the data? Download all 505 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 2011 Chevrolet Impala verdict →