GM issues a stop sale order for 2021 Chevy Silverado HD and Sierra HD pickup trucks due to an undisclosed quality issue. This report comes to us via GM Authority. This stop sale order on certain 2021 model year trucks is confirmed by a GM representative. Here are the details.
GM Senior Communications Manager Dan Flores provided this statement. “General Motors has notified Chevrolet and GMC dealerships to stop the delivery of certain 2021 Chevrolet Silverado HD and GMC Sierra HD pickup trucks. We are investigating a potential quality issue with these vehicles. We have no additional information to share at this time.”
After further investigation, another GM Authority source states that this may have to do with a wire harness chafing problem that may lead to a fire risk. This wire harness problem statement is unofficial.
It’s worth noting that this affects certain 2021 GM heavy-duty trucks that are still on dealership lots. GM switched to building 2022 model-year HD trucks back in July. There is no information that suggests that the new 2022 trucks have the same problem.
Here is our hands-on review of a 2021 Chevy Silverado HD truck.