Since purchasing this vehicle in mid-2020, I have experienced this issue on several occasions including again today. I understand there is a technical service bulletin out on this issue currently.

- West Springfield, MA, USA

When the car is being shifted to park, the system gives a warning to 'shift car to park' in order to turn off vehicle. Shifter is not responding to car leaving the vehicle unable to be turned off.

- Belleview, FL, USA

Can not turn engine off after parking the car. The message "action required" 'shift to park' shows up even though the car is in P and parking break is also applied and the vehicle is stationary. Has been happening everyday the past week. Have to leave the car until it turns itself off!

- San Jose, CA, USA

Errors: "unable to charge", U2619, U2620, U2621, U2622, U2623, U2624, ub2aaa, becm needs replacing; also "shift to park" error is very common in this Chevy Volt.

- Whitehall, MI, USA

My wife and I were taking a 200 mile trip. I was using the "hold" mode, driving at 65 mph, and about 60 miles into the trip a message came up that I was in reduced power mode and the check engine light came on. I pulled over and read the manual and then proceeded another 30 miles using the engine. I reduced my speed to 50 mph. After stopping for an hour at our destination, we started back home, but the same alerts were on the screen. I went to a local Chevrolet dealer, 5 miles. Before getting there the engine shut off. I had 40 miles of battery left so I proceeded the last 2 miles to the dealer on battery power. They could not service the vehicle so I had it towed by aaa 90 miles to tulsa. The day before I left I had received the monthly diagnostic report which stated all systems were fine. The car has 27,000 miles on it. The dealer says it is the egr valve, which are back ordered. I don't know when it will be repaired.

- Owasso, OK, USA

Car will intermittently not turn off when shifter placed in park and on / off button pushed. Message on display screen will show "shift to park". it appears the vehicle is not recognizing the vehicle is in park. I purchased this vehicle 12/10/2020 and it has happened multiple times thru today's date 12/23/2020. It happens in the park gear when attempting to shut down the vehicle.

- Ivins, UT, USA

Prior to starting my 1,100 mi trip with my 2017 Volt premier, I inflated the tires, checked fluids, & charged the car. The monthly diagnostic report I received the day before my departure indicated no problems with the car, which had approx 40,500 mi. I was driving on interstates & highways using hold (gas) mode, occasionally mountain mode. Approximately 275 mi. Into the trip I received power propulsion reduced alert. After an additional 50-75 mi I received an action required: Engine overheating reduce speed alert. I exited the interstate and proceeded to the nearest dealership to determine if it was safe to continue on my trip. I was told that the propulsion alert was not an immediate concern & that the overheating was likely not related. I also received a GM diagnostic E-mail stating there was an emissions problem that should be serviced within 7 days, but did not become aware of this E-mail until a day later. Approx 200 mi later, I was on a remote, unlighted highway when I received an engine unavailable alert and lost power. My car quickly decelerated, but I was able to get to a narrow shoulder. I tired to put the car in park, apply emergency brakes, and shut the car down but it was difficult to tell if these features were working. I put the hazard lights on and waited for a chp officer due to lack of cell service & highway safety concerns at night. After 3 hours, all systems failed, including lights. Only manual locks worked. After two 30 mi tows to get to a dealership with a Volt tech, it was determined that a bad egr valve was causing a fuse to blow, . the valve was ordered (tech remarked that the part is "popular") & installed. The issue seems to be fixed. But, it is unclear if this is a design flaw, manufacturing flaw, or a one time occurrence.

- Ventura, CA, USA

With increasing frequency, when I shift to park and turn the car off it does not always recognize that it is in park and directs "shift to park, " despite the shifter being in park, and will not completely shut down. This could be a safety issue, because it is unclear whether the car is in park or not. Also being unable to lock the car means the car is at risk for vandalism and/or a child getting into the car and turning it on.

- Austin, TX, USA

41000 miles airbag service light on at all times when car is powered on. Passenger airbag light on or off status is totally dark, no indication of status. Does not matter if a passenger is in the seat of not or if the car is moving or not.

- Gilbert, AZ, USA

Propulsion power is reduced while driving. Power is lost and battery cells are drained Chevy dealership claims they can not find error or address problem. After photo showing error on dashboard.

- Peoria, IL, USA

When I put the car in park, it says "action required, shift to park" it doesn't recognize that it's already in park... it's a known problem with the shifter and they haven't issues a recall yet. This happens when the vehicle is stationary.

- Charlottesville, VA, USA

Intermittent "shift to park" during parking process. This prevents vehicle from being turned off. Had the car into the dealer about a year ago to fix and the dealer was unable to duplicate. The problem seems to be worse when it is cold and it happens more often. Multiple actuation of the shift release button eventually causes the system to since the shift lever is in the park position. The date below indicates the last time it happened, but since owning the car, it's happened at least 5 times a month with this last week being at least once daily.

- Snohomish, WA, USA

Upon starting the car (after sitting in the sun with windows up, so hot cabin), when I shift to any gear out of park, I get an action required shift to park message. The shifter will go to drive, for example, but pressing the gas pedal does not move the car, and I have the message to shift to park. This has happened twice. Both times I rolled down windows, and tried turning the car off and back on again to resolve this. After several rounds of this, the car did shift to drive and would go. However the engine is running (rather than only electric, as I usually operate); the battery gage in classical mode shows a rapidly decreasing charge, then increasing, then decreasing - also the place where it shows how many miles left in battery is greyed out at 0, even though the battery may appear to be charged more than half. Also, when trying to shift modes, hold mode is grayed out and I cannot activate it. Once I arrive at my destination and turn the car off, plug it in, next time it turns on as normal. Check engine light is on for all this, and does not turn off when restarting a fully charged battery the next day.

- Ithaca, NY, USA

When I park my car, I shift it into park and press the button to turn the car off. However I then get a message on the dash: Action required shift to park. But it's already in park & I cannot shut off the car.

- Ithaca, NY, USA

Purchased a 2107 Volt premier with 40K miles in July 2020. My wife was driving the car and it lost power on the freeway with a "shift to park" warning and check engine light. She was able to glide over to the shoulder and I came to rescue her. After repeated on off cycles I got the car to move a couple of miles with several "jerking" motions while driving then it died again and I lost power braking (went to manual only). This time I was unable to "re-boot it" and had onstar have it towed to a local Chevy dealer who has a "certified ev specialist"

- Imperial Beach, CA, USA

Car is giving a message saying, "action required: Shift to park, when the car is in park and trying to turn the car off. Searching for this on the internet reveals this is a very common problem with the Chevrolet Volt and other Chevrolet models.

- Rocklin, CA, USA

As I was driving I received a message on the driver info center to shift in park and I lost acceleration while driving. Pulled off to the shoulder contacted onstar to get vehicle towed to nearby dealer. Was pushed by two police officers to get off the side of the road on the two lane highway. Once towed to dealership the tow driver said I have drive and reverse capability again which I didn't have while put on tower. As I was stopped on side of road my driver info center stated propulsion power is reduced so I couldn't drive or reverse. Check engine was on that night and that morning. At the dealership, no codes could be read because check engine light went away.

- Lawrenceville, GA, USA

Car won't turn off after I shift to park and depress the power button. Instead the car wants me to shift to park again. Car is stationary.

- Bonita, CA, USA

When turning off the car by hitting the power button, the center console will say "action required. Shift to park." The car will not turn off until the issue has been resolved. I am usually able to accomplish this by pressing and releasing the shift knob several times after shifting to park. The issue been happening more and more frequently lately. I am afraid it will happen in a situation where I may need to quickly exit the vehicle.

- South Milwaukee, WI, USA

After car is shifted to park and ignition switch pushed to turn car off, dashboard displays message 'action required shift to park' and car will not shut off. Repeated powering car on and off, jiggling and moving shifter all do not remedy the problem, and car will not allow shutoff.

- Simi Valley, CA, USA