While slowing to make a stop at an intersection, the vehicle experienced sudden acceleration and would not stop. the car struck the vehicle in front of it a couple of times and continued to accelerate.
While in motion the car began to erratically speed up & slow down without the driver depressing either the acceleration pedal or the brake. the result was the jumping & bucking of the car & passengers within. upon taking the car to chevy repair, it was discovered that the wheel speed sensor was damaged because of a faulty washer in the axle that broke. the broken washer parts entered the wheel hub, damaging both the wheel hub & the speed sensor.
While turning into an angled parking spot in a parking lot, the car accelerated unexpectedly. before i could engage the brake, the car went over the concrete berm separating rows of parking spaces and hit two parked cars. all three vehicles were damaged (the vehicle i was driving, and the two parked vehicles). weather was not a factor. the parking lot was dry and free of snow and ice. the temperature was ~40f. the car was new (3 months old) with ~550 miles on the odometer. the same behavior (unexpected acceleration) happened ~1 month earlier under similar conditions, i.e., dry, snow/ice free while turning into an angled parking place. fortunately, that time i was able to engage the brake before damage was done. in both cases, the cause of the behavior is not known.
Driving home in my 2017 chevrolet bolt ev, when i was about 3 miles from home and the charge/range display showed a "minimum" 15 mile range remaining (see dashboard photo), the message "charge vehicle soon" displayed and the bolt abruptly came to a complete stop. this occurred while driving up a steep, snow-covered stretch of road, and left my vehicle stationary in the middle of its lane, an incredibly unsafe situation. after some experimenting, i discovered that simply dismissing the "charge vehicle soon" message using the "checkmark" button on the steering wheel restored vehicle power and allowed me to drive the rest of the way home. so apparently what happened is that when the car reached about 8% battery power (15 miles remaining divided by 185 at a full charge), it automatically dropped into some sort of low power mode that left it unable to climb a hill. thankfully in this case, the roads were almost deserted and no one was hurt, but obviously the potential for an accident is very high when a vehicle suddenly stops in the middle of a road. this vehicle behavior is not described in the owner's manual. on page 231, it is stated that at some point when the battery's charge is very low, a "propulsion power is reduced" message will display and the "accelerator pedal response is reduced". however, the following sentence reads, "in addition, the remaining range value will change to low indicating the vehicle should be charged immediately." that never happened in my case. the "propulsion power is reduced" message never displayed (though propulsion power clearly was reduced), and as can be clearly seen in the posted photo, the minimum range displayed as 15 miles. there was no conceivable reason for the car to shut down with that mileage remaining. i assume this was the result of defective vehicle software or electronics, and it is a clear safety issue.
When the drive mechanism has been shifted to "l" (low), the vehicle should slowly come to a stop when the accelerator is not pressed. however, while the display showed "l", i have experienced the vehicle continuing to accelerate forward from a stop (as if it were in "d" instead). this occurred while parking, and the vehicle (without operator input) would lurch (as if someone were tapping the break while in "d"). the vehicle was in motion when i noticed the issue -- it did not stop when i removed my foot from the accelerator pedal. the issue persisted after stopping -- i stopped the vehicle with the break, and it would continue moving forward after removing my foot from the break. this occurred in a parking lot while parking. initially i was turning aggressively to enter a parking spot. but the issue persisted after straightening out the vehicle in the designated spot. since this acceleration is unintended and unexpected, it could lead to accidents. things which i would guess might contribute to the malfunction: - quickly shifting from "p" to "d" to "l" after turning on the vehicle. - activating the low-speed collision avoidance system while in "l" (ie, getting very close to parked cars while turning into a parking spot). i have a video of this behavior after i straightened out in the parking spot. but i can't attach videos. please contact for information.