MyCarTSB

2018 Chevrolet Impala Engine Problems

2 owner-reported engine complaints from NHTSA data

2
Complaints
Mar 2022 – Aug 2020
Date Range

Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.

Owner Complaints (2)

highENGINE,FUEL/PROPULSION SYSTEM
Filed: Mar 2022

While driving at highway speeds, your car suddenly loses power without warning, triggering a 'Reduced Engine Power' warning message. After shutting off the engine for a few minutes and restarting, the car runs normally again, but the check engine light stays on. This issue has occurred multiple times in a short period.

Parts you may need:

fuel filterShop on Amazon →spark plugsShop on Amazon →ignition coilsShop on Amazon →fuel pump relayShop on Amazon →

As an Amazon Associate, MyCarTSB earns from qualifying purchases.

NHTSA #: 11458634
mediumENGINE
Filed: Aug 2020

TL* THE CONTACT OWNS A 2018 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE, A STRANGE ODOR WAS PRESENT COMING FROM THE ENGINE INTO CABIN OF THE VEHICLE. THE VEHICLE WAS TAKEN TO LOCAL DEALER (RACEWAY CHEVROLET LOCATED AT 1510 SOUTH 5TH ST, HARTSVILLE, SC 29550) WHO DIAGNOSED THE AIR CONDITIONING EVAPORATOR COIL WAS DEFECTIVE AND HAD LEAKED FREON. THE COIL WAS REPLACED AND THE FAILURE WAS REMEDIED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 39,000.

NHTSA #: 11350213

Other 2018 Chevrolet Impala Issues

Steering (7)Power Train (10)Electrical System (8)Service Brakes (4)Air Bags (5)Fuel System, Gasoline (2)Tires (1)Exterior Lighting,visibility/wiper (3)Latches/locks/linkages (1)Suspension,wheels (1)Back Over Prevention (1)Electronic Stability Control (esc),engine (1)Vehicle Speed Control,unknown Or Other (1)
← View all 2018 Chevrolet Impala issues