Diagsheet

2020 Chevrolet Malibu · symptom sheet

Check engine light or misfire

  • 30owner reports
  • 77,000median miles
  • 2involved a crash

Newest report Jul 31, 2026 · checked Oct 2, 2026

110 of the 198 complaints on this car are about the engine. 30 of those describe misfire.

No recall on this systemas of Oct 2, 2026
2 crashesin 30 reports

Tick what matches of 30 reports

6
1
1
5

Misfire on other Malibu years

Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2015.

What this problem usually is

These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.

Read the full explainer · Which cars report it most

What got replaced

Owners who name the part that was replaced mention the sensor (6 reports).

Recalls and investigations

No recall on the engine covers the 2020 model year as of Oct 2, 2026.

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.

PE02-066opened Sep 6, 2002
Fuel system · model years 2000

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

DP02-008opened Sep 3, 2002
Engine · model years 1999

Engine coolant boils over. Closed sep 24, 2002.

None of these investigations covers the 2020 model year.

When it happens

The middle half of failures fell between 53,000 and 88,400 miles, from the 14 reports that gave a mileage.

Complaints by the year NHTSA received them: 2020: 1, 2021: 1, 2022: 5, 2023: 7, 2024: 4, 2025: 5, 2026: 71'201'215'227'234'245'257'26

Is this a known problem?

The manufacturer has sent NHTSA 18 service bulletins or notices for the 2020 Chevrolet Malibu that deal with this problem. Newest first.

Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.

14 more on the 2020 Chevrolet Malibu page.

What owners wrote

“Throwing code p1101 for the mass air flow sensor. This is a listed recall amongst other Malibu's but does not include my vin number. Check engine is on.”

Filed Dec 16, 2025

“Car has stalled out, or acted like it's going to stall out several times. No check engine light on so unable to identify the issue. There are recalls for other Malibs for similar problems, but it states this model is not affected.”

Filed Oct 4, 2023

“The sensor for my gas cap was the first thing to malfunction, then My check engine light came on. Then the power steering sensor have me notice to drive carefully my drive assistance was malfunctioning. During my drive last night the power steering went out and the dashboard went dark several times.”

Filed Jul 19, 2023

Should you keep driving it?

This page can't tell you that. 2 of 30 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. How reports land on this sheet.

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