General Motors is recalling more than 600,000 four-wheel-drive trucks and SUVs because a software error could activate the braking system, increasing the risk of a crash. Short-term GM is advising customers to drive in two-wheel drive mode. The final fix is to update the software in the Electronic Brake Control Module (EBCM).
The recall covers the 2014-2018 Chevrolet Silverado 1500, 2015-2020 Chevrolet Suburban, 2015-2020 Chevrolet Tahoe, 2014-2018 GMC Sierra 1500 and 2015-2020 GMC Yukon models. All the vehicles have the 5.3L V8 with the 3.08 rear axle ratio.
Activation of the braking software is triggered by the failure of a wheel-speed sensor, leading to unintended braking on the opposite wheel. That would cause the vehicle to pull to one side, increasing the risk of a crash. That risk can be eliminated by driving in two-wheel drive mode until the recall repair is made, GM said.
GM will reprogram the vehicles’ ECBM software to fix the problem.