Some owners of 2017 to 2019 model year Chevy Bolt EV vehicles may observe a clicking noise coming from the front of the vehicle, along with an illuminated ABS and/or traction control warning lamp on the instrument cluster. GM has identified the root cause of this problem, outlining a fix for the issue on its GM Techlink service website.
According to the relevant GM Techlink post, “some 2017-2019 Bolt EVs may have an intermittent click sound at the front of the vehicle and the ABS, traction control and/or StabiliTrack warning lamps may illuminate on the instrument cluster. These conditions may be caused a fractured front drive shaft anti-click washer, which could result in possible damage to the ABS wheel speed sensor.
Dealer technicians should replace the anti-click washer on the affected half shaft in vehicles with the above-described conditions, and then inspect the wheel speed sensor. If certain trouble codes for the wheel speed sensors are set, or the sensor appears damaged, the sensor should also be replaced. To check the anti-click washer on each front-wheel drive shaft, technicians will have to separate the lower control arm from the steering knuckle and remove the anti-click washer from the outboard joint of the half shaft.
This potential problem will affect 2017, 2018 and 2019 model year Chevy Bolt EV models only. The refreshed 2022 Chevy Bolt EV, along with the new, closely related 2022 Chevy Bolt EUV crossover model, seemingly do not experience this issue.
Production of the 2023 Bolt EV, along with the 2023 Bolt EUV, will begin at the GM Lake Orion plant in Michigan on Tuesday, July 26th, 2022. Both the 2023 Chevy Bolt EV and 2023 Chevy Bolt EUV are equipped with a 65 kWh battery pack, as well as a front-mounted Voltec electric motor. Output is rated at 200 horsepower and 266 pound-feet of torque, with both models riding on the GM BEV2 platform.