2018 Chevrolet Volt · symptom sheet
Check engine light or misfire
- 36owner reports
- 84,800median miles
- $2,384median quote
- 0involved a crash
Newest report Sep 25, 2026 · checked Oct 2, 2026
149 of the 225 complaints on this car are about the fuel and propulsion. 36 of those describe misfire.
Tick what matches of 36 reports
Misfire on other Volt years
Report counts are for each model year on its own, so a newer car has had less time to collect them.
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.
What got replaced
Few of these reports name the part that was replaced.
Recalls and investigations
No recall on the fuel and propulsion covers the 2018 model year as of Oct 2, 2026.
NHTSA investigations into the fuel and propulsion on the Volt
Loss of motive power due to the battery energy control module. Closed mar 3, 2025.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Post-crash ev fire hazard. Closed jan 20, 2012.
What owners paid
5 of the 36 reports quote a price. Each dot is one quote. The middle half runs $400 to $4,000.
When it happens
The middle half of failures fell between 45,000 and 97,808 miles, from the 10 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 18 service bulletins or notices for the 2018 Chevrolet Volt 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.
This service bulletin advises the tech to check the wiring harness to validate that the harness is not the cause of the check engine light and to replace the EGR to correct a customer concern of MIL Illuminated.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This service bulletin provides repair information to correct a customer concern of a Check Engine Light Illuminated, No Start/ No Propulsion, DTC P0A0C.
14 more on the 2018 Chevrolet Volt page.
What owners wrote
“The vehicle losses power on high speed, check engine comes on, low propulsion massage displays. Vehicle does not charge. Issues similar to the investigation DCS6812.”
Filed Mar 23, 2026
“The car can't decide if it wants to use the battery or the engine. It shows zero charge even though it is full. It lurches at stop lights as it tries to decide whether to use battery or engine. It says "propulsion power reduced". "Not able to charge". "Shift to park". Check engine light is on.”
Filed Oct 14, 2025
“Reduced Power/Low Propulsion warning, Check engine light. Car may experience reduced power. Could be hazardous at high speed. Dealer diagnosed vehicle and found bad EGR valve. Part is on back order with consumers waiting months even years for replacement part”
Filed Aug 3, 2024
“"Propulsion power reduced" message along with check engine light, loss of propulsion power from battery, loss of ability to charge battery. OBD2 scanner reveals P1E00, and 12 U26xx fault codes relating to Battery Energy Control Module failure.”
Filed Jan 10, 2024
Should you keep driving it?
This page can't tell you that. 0 of 36 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.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- "Shift to Park" or "Service Shifter" warning comes on 58 reports
- Engine stalls or loses power while driving 56 reports
- Infotainment, screen or backup camera fails 38 reports
- Battery dies or the car will not start 33 reports