NHTSA Complaint #11482650 — 2018 CHEVROLET BOLT EV

Our vehicle's power steering is intermittent. It randomly shuts off, leaving the driver with no power steering. Most frequently, the problem surfaces just after start-up, however, this problem also occurs after driving the car for several minutes, such as when the vehicle is parked but turned on, when the vehicle is in motion while driving, and even once in the middle of a U-turn. Once out, the power steering stays off for several minutes, sometimes only 5 minutes, sometimes 15. Once out, the power steering has a) come back on without warning 5-15 minutes later, while the vehicle is in motion while driving, or b) not returned at all for the duration of a drive. It feels unsafe to drive a car that will lose power steering in the middle of a drive. Imagine you are turning the vehicle around a tight corner at 30mph, and all of a sudden the vehicle's trajectory is instantly changed and/or affected because you aren't prepared to grip the steering wheel and apply force strong enough to hold its position without the power assist. Or, imagine the power steering goes out, and you're driving on natural power, applying force strong enough to keep the vehicle on its intended trajectory, but then, without warning, power steering returns, and you suddenly have to correct by lightening your hold? In both scenarios, the power steering is unreliably putting the driver and passengers, along with other motorists or pedestrians, at risk due to the intermittent and unpredictable power steering problem. Yes, it has been inspected by the manufacturer at a Chevy dealership and it was determined: "Internal Power Steering Module Failure. Verified on road test. Found no communication from steering control module. Test power and ground. Recommend replacement." A warning sound and a flash notice on the indicator screen both emerge simultaneously when the problem occurs, however, no messages or indications happen prior to the failure. For us, they first appeared in February 2022.