Diagsheet

2018 Chevrolet Malibu · symptom sheet

Check engine light or misfire

  • 92owner reports
  • 54,500median miles
  • $400median quote
  • 2involved a crash

Newest report Sep 2, 2026 · checked Sep 9, 2026

429 of the 695 complaints on this car are about the engine. 92 of those describe misfire. Only stalling is reported more often on this car.

Tick what matches of 92 reports

8
1
2
1
22

What got replaced

Owners who name the part that was replaced mention the sensor (14 reports) and the injectors (3 reports).

Recalls and investigations

2 recalls on the engine cover the 2018 model year. A recall on the same system isn't always the same failure, so read the defect text.

19V-642Sep 6, 2019
Electrical System:Software

General Motors LLC (GM) is recalling certain 2018 Chevrolet Malibu vehicles equipped with 1.5L turbo engines. An error in the Engine Control Module (ECM) software may result in the fuel injectors being disabled.

Risk and remedy
Risk: Disabled fuel injectors would prevent the engine from starting and may cause a stall, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the ECM software, free of charge. The recall began October 16, 2019. Owners may contact GM customer service at 1-800-630-2438. GM's number for this recall is N192221960.
18V-358May 31, 2018
Fuel System, Gasoline:Delivery:Fuel Pump

General Motors LLC (GM) is recalling certain 2015-2018 GMC Canyon, 2016-2017 Buick Envision, 2016-2018 Chevrolet Colorado and Malibu, 2017-2018 GMC Acadia, 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, and GMC Terrain vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.

Risk and remedy
Risk: A damaged fuel line can create a fuel leak, increasing the risk of a fire.
Remedy: GM will notify owners, and dealers will replace the high pressure fuel pump, and high pressure fuel pipe, free of charge. The recall began July 2, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18188.

NHTSA investigations into the engine on the Malibu

EA02-028opened Sep 30, 2002
Fuel system · model years 2000 to 2001

Erratic fuel gauge. Closed dec 30, 2003.

NHTSA summary
ODI OPENED EA 02-028 TO REVIEW COMPLAINTS OF CONSUMERS REPORTING THAT THEIR FUEL GAUGE WAS INCORRECTLY DISPLAYING THE AMOUNT OF FUEL IN THE GAS TANK.THE FUEL GAUGE RECEIVES AN ELECTRICAL SIGNAL FROM A FUEL TANK SENDING SENSOR CIRCUIT CARD.A FLOAT ARM IN THE TANK MOVES ELECTRICAL CONTACTS THAT RUB AGAINST THE CARD AS THE LEVEL OF FUEL RISES AND FALLS.DISRUPTION OF THE ELECTRICAL SIGNAL (SUCH AS CAUSED BY CORROSION OF THE CIRCUIT CARD) WILL CAUSE INCORRECT READINGS TO REGISTER ON THE FUEL GAUGE.GM REPORTED IN THEIR RESPONSE TO ODI DATED JANUARY 13, 2003 THAT THE PRIMARY CAUSE OF ERRATIC FUEL GAUGE OPERATION IS EXCESS ELEMENTAL SULFUR IN FUEL.GM REPORTED THAT ABNORMAL LEVELS OF SULFUR SPORADICALLY OCCURRED IN CERTAIN PARTS OF CANADA AND THE U.S. RESULTING IN REPORTS OF FUEL GAUGE MALFUNCTION.GM MODIFIED THE SENDING SENSOR FOR VEHICLES BUILT AFTER OCTOBER 2000.IT MADE A SECOND SENSOR MODIFICATION FOR VEHICLES BUILT AFTER JANUARY 2003.GM ALSO ISSUED A CUSTOMER SATISFACTION CAMPAIGN (GM NUMBER 00101) IN DECEMBER 2000 FOR U.S. CUSTOMERS IN THE STATE OF MAINE AND ISSUED SEVERAL SERVICE BULLETINS INFORMING DEALERS OF THE AVAILABILITY OF SENSORS WITH IMPROVED CORROSION RESISTANCE.THE COMPLAINT TREND INDICATES THAT COMPLAINTS PEAKED IN LATE 2000 TO EARLY 2001.WARRANTY CLAIMS DECLINED SINCE PEAKING IN APRIL 2002.BASED ON THE NUMBER OF COMPLAINTS AND THE INDICATION OF A DECLINING TREND, FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.THE CLOSING OF THIS INVESTIGATION DOES
PE02-066opened Sep 6, 2002
Fuel system · model years 2000

Engine stall due to fuel starvation. Closed nov 3, 2003.

NHTSA summary
ODI OPENED PE02-066 TO EVALUATE THE SCOPE AND CONSEQUENCE OF ENGINE POWER-LOSS DUE TO FUEL STARVATION INDUCED BY IN-TANK MODULAR FUEL PUMP STRAINER RESTRICTION.THE SUBJECT PUMPS USE AN EXTERNAL ?SOCK? STRAINER TO FILTER FUEL FLOWING TO THE PUMP INLET.THIS FILTER CAN SOMETIMES BECOME CLOGGED, RESULTING IN A REDUCED FLOW OF FUEL TO THE ENGINE.GM HAS SUBSEQUENTLY MODIFIED THE STRAINERS TO REDUCE THIS RESTRICTION.ANALYSIS OF THE ODI COMPLAINT DATABASE SHOWS THAT DESPITE THESE RESTRICTIONS, THE SUBJECT VEHICLES STALL AT A RATE THAT IS COMPARABLE TO THOSE OF MANY PEER VEHICLES.ADDITIONALLY, NONE OF THE RELEVANT WARRANTY REPAIR RATES EXCEED 1% AT 36 MONTHS OF EXPOSURE.ONE RELATED CRASH INVOLVES A STALLED VEHICLE THAT WAS REAR-ENDED ON THE ROADWAY, WHILE THE REMAINDER INVOLVED MINOR COLLISIONS OR SCRAPES.THE SOLE INJURY CONSISTED OF BRUISING FROM A LOW SPEED FRONTAL CRASH. GIVEN THESE CIRCUMSTANCES, FURTHER EXPENDITURE OF AGENCY RESOURCES IS NOT JUSTIFIED IN THIS MATTER.THE PRELIMINARY EVALUATION IS THEREFORE CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.
DP02-008opened Sep 3, 2002
Engine And Engine Cooling · model years 1999

Engine coolant boils over. Closed sep 24, 2002.

NHTSA summary
There is no summary currently available

None of these investigations covers the 2018 model year.

What owners paid

6 of the 92 reports quote a price. Each dot is one quote. The middle half runs $100 to $808.

$100$400$808
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 35,000 and 77,000 miles, from the 52 reports that gave a mileage.

218
819
1820
1521
1622
423
824
1125
1026

What owners wrote

“Was driving to work when suddenly my check engine light comes on and I get a warning reading “reduce power to engine” could feel the power literally reduce. Car won’t go pass 30MPH could hear the engine trying to accelerate but struggling too. This is the second time it happens, have noticed other complain about this on going issue with 2016-2018 models”

Filed Dec 13, 2022

“I was driving app. 41 miles per hour in heavy Friday traffic on 10/7/2022 and the check engine light lit up and the car dropped to about 20 miles per hour and would not pick up speed. The rpm was staying on about 3000. I pulled over and called my husband. We set for awhile and restarted the car and the light went off and it drove as normal”

Filed Oct 10, 2022

“I was driving 35 mph when the message "reduced engine power" and it noticably slowed down. The check engine light is still on. I researched recalls/problems with the 2018 Chevy Malibu and this is one major one I found.”

Filed Aug 28, 2022

“Son was driving my 2018 Malibu with 90,000 miles. Check engine light came on and car reduced speed from 75mph to 40mph on interstate! Autozone reading says replace Variable Camshaft Timing Solenoid. Very dangerous situation. Chevy should have to fix this.”

Filed Jun 26, 2022 · 90,000 miles

Should you keep driving it?

This page can't tell you that. 2 of 92 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.

Other problems on this car