NHTSA Complaint #11663315 — 2022 GMC SIERRA 3500

• What component or system failed or malfunctioned, and is it available for inspection upon request? The issue appears to be with the gear shifter assembly and/or park position sensor within the power train system. The vehicle fails to detect that it is in “Park,” even when the gear lever is physically in the Park position. Yes, the vehicle and component are available for inspection upon request. ⸻ • How was your safety or the safety of others put at risk? This malfunction prevents the vehicle from shutting off properly and displays a “Shift to Park” message even when parked. This creates a risk of the vehicle rolling away if the parking brake is not engaged and prevents secure shutdown, potentially draining the battery or creating confusion in an emergency. It compromises both driver and public safety. ⸻ • Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the issue was reproduced and acknowledged by a certified GMC dealership service department. They noted it is a known issue affecting other GM vehicles but stated there is no open recall or warranty extension currently available for my specific model. ⸻ • Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has only been inspected by a GMC-certified dealership. No inspection has been conducted by the manufacturer, police, or insurance representatives at this time. ⸻ • Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes, a “Shift to Park” message appears on the dash even when the shifter is correctly placed in the Park position. This message began appearing intermittently and has now become a consistent issue over the past few weeks.