The 2022 GMC Sierra 1500 has 6 recalls, the most serious being a transmission control valve defect on diesel-equipped trucks that can cause the rear wheels to lock up without warning, raising the risk of a crash. Some trucks that received a prior repair for this issue may not have been fixed correctly and remain at risk. On 6.2L V8 gas engine models, internal engine components can fail and cause the engine to shut down while driving. On the exterior, trucks fitted with chrome front grille deflectors may lose those pieces onto the road if the attachment points fracture. Two lighting recalls round out the list: trucks with an accessory sport bar carry a high-mounted brake light that may not work and can also block the factory brake light behind it, and a software issue can cause daytime running lights to stay on when the headlights are active, creating glare for oncoming drivers.