GM Urgently Recalls Thousands of Heavy-Duty Pickups Over Engine Stall Risk

General Motors has announced a new vehicle recall involving its heavy-duty pickup trucks, the Chevrolet Silverado HD and GMC Sierra HD. The issue stems from a software glitch that could cause the engine to stall unexpectedly while the truck is in motion.

According to the National Highway Traffic Safety Administration (NHTSA), the problem is related to the trucks’ dual-fuel-tank system. These setups are designed to extend driving range by automatically transferring fuel from the auxiliary tank into the main tank. In some cases, however, the engine control module may mistakenly register a diagnostic fault during normal fuel transfer.

When that happens, the system stops moving fuel from the secondary tank until the vehicle is restarted. This can create a potentially dangerous situation. The fuel gauge on the dashboard shows the combined fuel level from both tanks, even though the engine is actually drawing fuel only from the primary tank.

As a result, a driver may believe there’s plenty of fuel remaining, while the main tank could be nearly empty. If the primary tank runs dry while driving, the engine may suddenly shut off.

So far, no crashes have been linked to the issue. Still, an unexpected engine stall at highway speeds can increase the risk of an accident.

The recall affects approximately 11,787 trucks — specifically 2025–2026 Chevrolet Silverado 3500 and GMC Sierra 3500 pickups equipped with gasoline engines and the dual-fuel-tank system.

Diesel models are not included in the recall. The fix will involve a software update to the engine control module. Owners are expected to begin receiving notification letters about the service campaign starting April 20, 2026.

Modern vehicles rely more heavily on software than ever before. Even in heavy-duty pickups, traditionally prized for durability and mechanical simplicity, software errors are increasingly becoming the reason behind large-scale recalls.