Initially was receiving intermittent “Recieved Propulsion Power” warning and no check engine light. Did it about every 2 weeks but became worse. Received Reduced Propulsion power warning on a road trip from East TN to Charlotte then showed a check engine light. I continued to Charlotte I had 4 miles left on battery and was running on gas engine when “Engine Not Available” warning came on leavin…
2018 chevrolet Volt powertrain problems
moderate 80 complaints filed with NHTSA · avg repair $2,500
Complaints
80
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 8 most recent
My 2018 Chevrolet Volt frequently fails to recognize when the vehicle is shifted into Park. The dashboard displays “Shift to Park” even though the gear selector is already in Park. When this occurs, the vehicle will not power off, requiring multiple attempts to move the shifter before shutdown is possible. This creates a safety risk because the vehicle may be left powered on unintentionally and m…
On Dec 3, 2023 I got the message "Propulsion Power is Reduced" and the gas engine started even though there was about 53 miles left in the battery. I was able to continue on to my destination use the gas engine. On Dec 8, 2023 I drove the car to La Quinta Chevrolet and they diagnosed the problem as a failed BECM (Battery Energy Control Module). On Dec 11 I got the car back and was told the BECM is…
Vehicle is 2018 Chevrolet volt with approx 91000 miles, purchased new in California with both PZEV and Voltec warranties in place. Vehicle produced MIL in December, in Colorado, with exterior temperatures ~30 degrees, after attempting to remote start. The resulting OnStar Codes P1AEE, P1AEF, and P0AC4 indicating "the electric propulsion system is not performing as expected. Please service immediat…
SHIFT TO PARK ISSUE. WHEN THE CAR IS IN PARK THE CAR STILL REPORTS SHIFT TO PARK WHEN YOU TRY TO TURN IT OFF.
On June 27, 2025, while driving, the vehicle displayed a "Propulsion Power Reduced" warning message and a Check Engine Light illuminated. I immediately experienced a loss of power. I brought the vehicle to an authorized Chevrolet dealer the same day. On July 1, 2025, the dealer diagnosed the failure as a faulty Battery Energy Control Module (BECM) and high-voltage system fault (Code P1E00), requi…
In August 2023, while driving on I-93 in Boston, car switched from Battery Mode to Engine Mode, and Driver Information Screen reported "Reduced Propulsion". Propulsion Battery charge and gasoline fuel levels were adequate such that this should not have happened. In this Reduced Propulsion state the environmental systems, i.e. Heat/Defrost/AC, become inoperative. A thunder storm overhead was pourin…
My 2018 Cheverolet Volt stopped charging via the PHEV port, the check engine light came on, and "Propulsion Power Is Reduced" read on the driver display. Car acceleration began to lag and I called the dealership service department immediately. I took it to the service dept and they said the repair is under warranty but the part is back-ordered with no ETA on when I will get my car back, but I shou…
Common questions
How serious is the powertrain problem on the 2018 chevrolet Volt?
It's a documented issue but not catastrophic. 80 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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