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

While driving on city streets and highways, the adaptive cruise control will not engage 25% of the time and will disengage without notice. "adaptive cruise control will appear in dic. However, this creates a safety hazard as you never know if the car will automatically slow down. I have filed case # 9-5379585813 with Chevrolet and been to four dealers and they refuse to fix the problem. They no longer return my calls. I am afraid to use the cruise control.

- San Antonio, TX, USA

Takata recall Chevy Volt's defective HM1 module and failed needs to be replaced after 2 years on 2017 Volt not covered by owners warranty 3 yrs or 36 K miles. Vehicle warranty expired with 42 K miles. Replacement coat is $600+ and installation cost $660. Total $1,260. Safety issues as this is the main module to control all other modules as back up camera, gps, electrical settings and electrical charging settings as rate can not be viewed as info screen is totally blank. In addition all other functions to other items displayed are blank on screen. Replacement module is back ordered.

- Ellsworth, ME, USA

The trouble began on March 16th, I came to a stop at a light, ready to take a U turn.driving in ev mode. All lights in the console turned on and I got three errors "information : propulsion power is reduced" "service : stabilitrak" "service : power steering. Drive with care" the power steering gave up.restarted the car after 5mins, everything was normal. On March 24th, on a highway, in hold mode. After a few miles in, I got an error "action required: Engine overheating reduce speed" took the next exit out and saw that the coolant tank is empty. Turned on ev mode, drove back home. On March 25th morning, took the car in to service center (drive-in). They identified a valve leaking in the coolant loop. Replaced the part. Multi-point inspection done. 2 pending recalls done. Got the car back on 26th. On March 28th, at a light, about take a left turn, driving in ev mode. Again, all lights in the console turned on and I got the same 3 errors.I took it home. On March 29th morning, took the car in to the service center again. They found another leak in the coolant, a hose this time and replaced it. They found passenger side front axle is spilling geese and replaced it. Got the car back on April 3rd. On April 4th evening, the car gave me a check engine light again. Got an appointment for 5th morning, the light was off on the morning. I spoke to the service adviser and he mentioned that we can read the codes but wont be of much help if the lights are off and bring it back in if the lights on again. On April 5th afternoon, just got on the highway, turned on hold mode. Again, all lights in the console turned on and I got same three errors. I took it to the service center. With all the lights on. I got it back on tusday 9th. On April 12th evening, it happened again on the freeway, I almost crashed into another car. I gave the car in again.

- San Jose, CA, USA

On multiple occasions (including after alleged repair), the vehicle requested to be placed in park while moving. On two occasions when placed in park the vehicle shift lock engaged and could not be shifted out of park. On one occasion the vehicle surged while driving prior to requesting to be placed in park. On all occurrences, the vehicle would not shut down and entered a continuous reboot cycle when the start/stop button was pressed, including when towed.

- Sherman Oaks, CA, USA

Vehicle's lane departure function and calibration was reprogrammed after a recall service and not function does not work. Function was not only a premium charge option, but originally would monitor the lane lines and adjust the electronic steering system to keep the vehicle well within the road lanes' painted lines. Now, the vehicle will (more times than not) completely cross the tires well over the painted line, traveling several tens of yards before only slightly correcting its direction back towards the lane. In a best case scenario, vehicle system will begin correcting itself approximately just as the front tire makes contact with the lane boundary lines. This has been observed in lanes of varying width and confirmed by the servicing dealership. Further, system is inconsistent in its determination and "correction" lane boundaries, sometimes crossing the left lane line entirely then barely touching the ride side lane, or vice versa. System has also been apparently less sensitive in reading the lines as the instrument panel indicator will not light up indicating that it recognizes lanes, even though lanes are clearly and brightly painted and illuminated by either headlights, street lights or sunlight. As this vehicle is a complete drive-by-wire system (brakes, steering, and throttle have no mechanical connection to driver's inputs), I have serious concerns with regards to the sensors capabilities in accident avoidance and feel that in an emergency situation, the system will fail to operate as promoted and promised by the manufacture. This would be acceptable if this performance was similar or consistent to performance from initial operation, however, the oem has effectively and dramatically changing the vehicle's driving dynamic and safety function that I (and any reasonable driver) have become comfortable with as a driver, without my consent.

- Warminster, PA, USA

We are writing to voice a very disconcerting and dangerous incident with our 2017 Chevy Volt. On a return trip at dark from cleveland, Ohio to rochester, NY on 12-26-16, our engine suddenly gave warning beeps which prompted my husband to pull over to the shoulder on interstate 90 in erie, pa. We had all of 15-20 seconds to get off this heavily trafficked highway when the car literally shut down.. nothing worked not even the warning flashers. We could not open the trunk, and had we not kept one door open we would not have been able to enter the car. In summary, the total failure we encountered shows the serious safety issue related to this car. We are now reluctant to take it on trips this incident could have resulted in a serious accident had we not been able to pull off onto the shoulder.

- Rochester, NY, USA

2017 Chevrolet Volt extreme engine hazard: On 22-Mar-2016 I purchased a 2017 Chevrolet Volt premier, all safety options. Driving on freeway at 65 mph, straight driving, relatively light traffic, the engine light came on yellow and steady (emissions system service warning) but the car uncontrollably decelerated. The freeway had no shoulder due to construction. The car smelled of burning electrical insulation confirmed by the tow truck driver. The car, with less than 150 total miles, in clear weather, at twilight, 76 degrees, California at sea level, straightaway, had a sudden and near total loss of all propulsion. This caused a lack of control (obviously) in the forward direction, causing an extreme hazard on the freeway. I am an experienced driver: Make no mistake, this was a serious manufacture's error. I checked, no parking brake, the car was in drive gear, I had both electric range and over 7/8 tank of gas showing a gas range of 360 miles - and I had just driven 60 miles. There was no brake smell, as I did not need to apply the brake because the engine gave no propulsion. My hand was off the regen switch. The car had a major malfunction causing an extreme hazard, and based on the smell, possible fire hazard.

- Castro Valley, CA, USA