Propulsion power reduced warning happening often. Car was brought in for diagnosis and I was told there was a sw reflash required. It continues to occur after this reflash. It is a major safety issue when this occurs while entering a highway and I cannot get up to highway speeds. It will eventually clear, maybe after 10 minutes or so, and acceleration will normalize.

- Tomball, TX, USA

My 2011 Volt frequently shows "propulsion power reduced" after the battery has been depleted and on restart. This affects performance, acceleration and thus safety for several minutes until the system rebalances itself. This condition began back in 2015 several years ago but is first noted in dealer's records at 101,000 miles. The car has 142,000 now. It has been in the shop several times asking for this condition to be repaired as the problem became more frequent. It appears to have had the software update you reference in your bulletin that may cause the problem. The condition is identical to that in your recall 18215, reference number N172130460. Please contact me for more information. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Austin, TX, USA

The service light came on when I plugged in the vehicle to charge, and gave this message service high voltage charging system

- Atlanta, GA, USA

My first problems I experience with the 2011 Chevy Volt was around October, 2014. When driving on the highway at highway speed, I received a "propulsion power reduced" indication on my dashboard and I was not able to keep up with highway traffic which resulted in a hazard for myself and other drivers. I was afraid I would be rear ended or cause an accident due to my low relative speed. This has happened several times while driving my vehicle, at times, not able to go faster than 45-55 mph on highways with 65-75 mph speed limit. I live in san diego ca where there is a lot of traffic especially on the highway. I have also review the lift gate struct "customer satisfaction" dilemma. I have had my hatch close on my head but it did not cause serious injury. It was more of an annoyance than anything else. It continues to be weak, and sometimes not keep the hatchback up at all. I have noticed it is worse at lower temperatures (40-50 degrees F). Last but not least, I received a notice from GM stating "this letter is intended to make you aware that some 2011 model year Chevrolet Volt vehicles may have increased friction in the steering system. This could cause the steering wheel to stick in the strait-ahead position after driving long distances on a straight highway. The steering wheel can be turned but it may require increased effort." Contacted GM about this notice I received and the GM represented me said there was no safety issue regarding this letter. I disagreed (how is a steering wheel lock up on the highway not a safety issue?) and requested to get out of my vehicle and into a different one that does not have the possibility of my and my family being killed by a vehicle defect. After several emails back and fourth and going to a Chevy dealership they told me to go to, the issue has not been resolved.

- Ramona, CA, USA