2018 Chevrolet Volt Engine Problems
Owners have filed 50 complaints with NHTSA about engine problems on the 2018 Chevrolet Volt, 22% of all complaints for this model year. Half of the reports with a mileage happened before 31,563 miles. The words owners use most often: “egr valve” (34% of reports).
- 50engine complaints
- 31,563median miles at failure
- 0mention a crash
- 0mention an injury
- 0related recalls
- 84%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- EGR valve: mentioned in 17 of 50 complaints (34%)
- Reduced propulsion: mentioned in 10 of 50 complaints (20%)
- Shift park: mentioned in 8 of 50 complaints (16%)
- Service soon: mentioned in 5 of 50 complaints (10%)
At what mileage do engine problems happen?
Based on 8 complaints that reported the odometer reading.
How serious are the reports?
None of the 50 complaints report a crash, fire or injury.
Chevrolet Volt engine complaints by model year
When owners reported it
Related recalls (0)
No safety recall lists engine for the 2018 Chevrolet Volt. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
I was driving back from [XXX] on XXX, when I received a "propulsion power limited" message on my dash with a check engine light. I pulled off to a nearby gas station and tried to scan the code to figure out what was going on when I then received the message "Engine unavailable" and the car shut…
While driving on a highway the car started to hesitate, a message appeared on the console "Propulsion power is reduced" and the engine light turn on. After driving some miles, a new message appeared: "Engine unavailable, service soon" and the car only ran on electric power, no motor engine. I had…
It was the XXX recall for the DTC P0442/check engine light code. The dealership said that the recall had been satisfied in 6/2020 by putting a buffer in to separate the 2 lines but not replacing the part. Now the exact same code DTC P0442/check engine light in the exact spot that occurred for the…

Frequently asked questions
Do all 2018 Chevrolet Volts have engine problems?
No. NHTSA has 50 owner complaints about engine for the 2018 Chevrolet Volt (22% of the 225 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2018 Chevrolet Volt engine?
No recall currently lists engine for this vehicle.
At what mileage do engine problems start?
The median reported mileage is 31,563 miles: half of the reports with a mileage came before that.
What do owners say about engine problems on the 2018 Chevrolet Volt?
The most frequent phrase is “egr valve”, in 17 of 50 complaints, followed by “reduced propulsion” (10).
Other 2018 Chevrolet Volt problems
See all 2018 Chevrolet Volt problems or engine problems across all Volt years.