Problems · NHTSA complaints

2020 Chevrolet Impala problems

Owners filed 15 complaints about the 2020 Chevrolet Impala with NHTSA between Aug 2021 and Jul 2026. The most-cited component is electrical system (3).

Complaints
15
Filed with NHTSA
Crashes
3
Reported by owners
Fires
0
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system3
  2. Steering3
  3. Fuel/propulsion system2
  4. Power train2
  5. Air bags2
  6. Seat belts1
  7. Lane departure1
  8. Visibility/wiper1
  9. Engine1
  10. Structure1
  11. Seats1
  12. Exterior lighting1
  13. Other / unknown7

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20212
20222
20231
20244
20254
20262

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

3 reports
“Seatbelt warning and blinkers have no sound warnings and driver side blind spot warning are not working”
Owner complaint to NHTSAFiled Sep 7, 2025Electrical system, Seat belts, Lane departureODI 11685539

Steering

3 reports
“2020 Chevrolet Impala Premier purchased July, 2015, mileage: + or - 12 miles I started having hard steering and made several trips to the dealer while under warranty and the dealer could not gen an OBD reading and no on dash reading. Right after the warranty was up and at 5,322 miles they were able to get an OBD reading. Information from the dealer invoice: A multi-point inspection DI1 Multi-Point inspection 716106 CPC B C/S veh is hard to steer at times- acts like it has no electric steering ADV cause: DTC O800 power steering control module low voltage, found while battery sitting over TP test dead cell and low cca 185/535cca EGO1 drivability test 716106 CPC $69.95 1 88866309 $190.00 New Battery Final charge: $317.44 No hard steering for a while, and now at 7,500 + or - miles hard steering is back and becoming harder to steer at times, especially if breaking. I have been to the dealer more often and had wait for the a while to get checked in and by the time he gets to me and someone to drive my car the steering is back to normal again. They told me that without a dash or ODB reading there is nothing they can do. 5 years same problem and never know when it will happen.”
Owner complaint to NHTSAFiled Aug 11, 2025SteeringODI 11679731

Fuel/propulsion system

2 reports1 crash
“The component is the Evaporative Emission Control System (EVAP) Vapor Canister Purge Valve.The internal diaphragm or solenoid of the factory-installed purge valve has worn out prematurely or became contaminated, locking it permanently into a stuck-open position.The Manifestation or (Symptoms): The stuck-open valve continuously drafts raw fuel vapor and unmetered air into the engine intake manifold. This causes an improper air-fuel mixture, resulting in:Stumbling / Failure to Start Immediately After Refueling (the engine is flooded by gas tank vapors forced in during fill-up).Rough Idling (due to a continuous vacuum leak).Illuminated Check Engine Light tracking Diagnostic Trouble Codes (DTCs) P0496 (High Purge Flow) or P0442. Yes, it is available for inspection. The vehicle stumbles, hesitates, and fails to restart at busy gas pumps and intersections which places drivers, passengers, and other motorists at an immediate risk of a collision. Yes, the problem has been validated by an professional auto mechanic shop. No, it has not been inspected by anyone else other than the mechanicshop to diagnose the problem, issue. The check engine light came on as I cranked…”
Owner complaint to NHTSAFiled Jun 16, 2026Unknown or other, Fuel/propulsion systemCrash reportedODI 11744373

Power train

2 reports
“I Took My Car To Castle Villa Park On July 8 2025 And Explained To Tony That Check My Car In That It Sound As If It Was A Hub Bearing My Car Was Dropped Off At 7:00 AM Until Around 1:00PM I Was Told I Need A Tire To See If It Was My Hub Bearing Which Didn’t Make Sense To Me So I Ask For A Supervisor I Was Then Inform That They Could Tell If They Switch My Tires Later On I Was Told It Was A Tire Came Took My Car To Firestone This Sat 07/19/2025 I Was Told I Didn’t Need Tires It Is In Fact Both Of My Hub Bearing So I Paid 100.00 Diagnostic Fee To Castle And Risking My Life Driving My Car When They Knew In Fact That It Was My Hub Bearings My Car Is Under Warranty If It Wasn’t They Would Have Fixed It And Charge Me I Am Taking My Car Back Monday I Have Made Several Complaints On This Dealer And Nothing Is Happening This Is Unfair For Consumer To Take Advantage Of Customers”
Owner complaint to NHTSAFiled Jul 20, 2025Power train, Unknown or otherODI 11674888

Air bags

2 reports2 crashes
“The contact's friend owned a 2020 Chevrolet Impala E. The contact stated that while her friend was driving at 25 MPH and approaching a curve, he inadvertently lost control of the vehicle. As a result, the vehicle left the roadway, rolled, and came to a complete stop with all four wheels facing upwards after colliding with a tree. Though the vehicle rolled on its back no air bags were deployed. No warning lights were illuminated. The vehicle was towed to a tow yard but had yet to be deemed a total loss by the driver's insurance provider. A police report was filed and injuries were reported. The driver refused medical attention from EMS at the time of the accident but stated that he would seek medical evaluation at a later date as he had hit his head on the driver's side door window as a result of the accident, resulting in visible injuries. The manufacturer was not notified of the failure. The failure mileage was 85,000.”
Owner complaint to NHTSAFiled Oct 29, 2024Air bagsCrash reportedODI 11622548

Seat belts

1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.