General Motors has released two new Customer Satisfaction Programs (CSPs) to address an issue concerning the electric drive units in a select number of GMC Hummer EV and Chevy Silverado EV models.
GM has issued a service bulletin instructing its dealers to replace the electronic control unit of inoperative power-retractable tonneau covers (RPO code 5KM) on certain units of the 2022 GMC Hummer ...
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