2025 GMC Sierra 1500 Problems: 6 Known Issues

On the 2024-2025 GMC Sierra 1500, owners of 2024-2025 Sierra 1500 trucks report the factory rear-view camera image is effectively black in any unlit area. In daylight the picture is sharp; at night the LED reverse lamps are aimed too high and are too dim to light the ground behind the truck, so the camera sensor sees almost nothing beyond a foot or two. NHTSA complaints describe only the red guideline overlay being visible and an adult standing 3-5 ft behind the truck being lit at chest level (a child or a bicycle is invisible). Dealers repeatedly tell owners the system is 'operating as designed' after checking it in a lit service bay. This is separate from the intermittent black-screen/camera-module dropout fault — here the camera works, but there is no light for it to work with. Complaint ODI numbers include 11703585, 11685671, 11658856, 11648167, 11645362, 11629474, 11627444, 11622143, 11620997, 11614888, 11610906, 11608202, 11601046, 11570814 (2024) and 11707086, 11693732, 11678658, 11664238, 11663238, 11634151 (2025).

On the 2024-2025 GMC Sierra 1500, 2024-2025 Sierra 1500 owners report the forward collision / automatic emergency braking system commanding hard braking with nothing in the travel lane. Documented triggers include a vehicle legally parked on the shoulder while the truck was travelling 55 mph (speed dropped to about 30 mph with no prior alert), overtaking a tractor-trailer at 70+ mph on a divided highway, and low-speed manoeuvring in parking lots. Some trucks display a persistent 'Service Driver Assist System' message alongside the false activations, and others show the opposite failure — AEB not intervening when it should. Rear-end collision exposure is the obvious risk. Complaint ODI numbers include 11705288, 11729845, 11661333, 11616606, 11629735, 11726911 (2024) and 11748748, 11695954 (2025).

On the 2024-2025 GMC Sierra 1500, 2024-2025 Sierra 1500 trucks with the 10-speed automatic (5.3L L84, 6.2L L87 and 3.0L Duramax LZ0) are failing at very low mileage with a stuck valve-body solenoid. Symptoms: a 'Service Transmission' or 'Service Transmission — Unable to Shift Soon' message, sudden hard/slamming shifts, slipping, complete loss of reverse (owners have had to push the truck out of parking spaces), and default limp operation limited to fifth gear and reverse. Several complaints report the failure occurring under 7,000 miles. NHTSA reports cite DTC P2818 (pressure control solenoid) and P0747/P0700. The situation is compounded by a national valve-body backorder — owners document 50-plus days and in some cases over a year waiting for the part, with GM sometimes authorizing a full transmission replacement instead. At least 14 NHTSA complaints for the 2024 model year describe this failure, for example ODI numbers 11756150 and 11754176.

On the 2024-2025 GMC Sierra 1500, 2024-2025 Sierra 1500 owners report the power MultiPro tailgate unlatching and falling open on its own, most often while driving, after hitting a bump or rain gutter, or after a car wash. Nobody presses the release; several owners returned to the truck to find the gate resting against a garage door. Documented consequences in NHTSA reports include the tailgate striking a towed trailer's jack on a left turn, cargo falling out onto the roadway, and repeated cosmetic damage to the top edge of the gate. Forum diagnosis points to water entering through two drain holes in the handle cavity and shorting the tailgate release switch, which is why the fault is strongly weather-correlated. GM recalled 2020-2024 Sierra 2500/3500 HD trucks (NHTSA 24V-060) for water shorting the tailgate release switch but has not extended coverage to the 1500, and owners report their VINs falling outside the campaign. Complaint ODI numbers include 11681958, 11657356, 11642113, 11637129, 11632101, 11631949, 11591659, 11581039 (2024) and 11670408 (2025).

On the 2024-2025 GMC Sierra 1500, distinct from the night-visibility complaint, 2024-2025 Sierra 1500 owners report the entire camera suite — rear, front, side-mirror and bird's-eye surround views — cutting out intermittently and displaying a black screen with crossed-out camera icons. The pattern owners describe is thermal: the cameras work when the truck is cold and after it has sat, then fail once the vehicle has been running or driven for a while, pointing at the Video Processing Module / Image Processing Module. Gridline overlays also drop out independently. Repeat dealer visits are common (one owner reported five visits and a full infotainment replacement without resolution, another reported three unsuccessful repair attempts); at least one report describes a garage-door collision when the display went blank while reversing. Complaint ODI numbers include 11746275, 11721762, 11693556, 11620174 (2024) and 11684291 (2025).

On the 2025 GMC Sierra 1500, a recurring 2025 Sierra 1500 electrical fault kills every audio output in the cabin at once. Owners start the truck and there is no radio, no turn-signal tick, no chime for hazard flashers, no Apple CarPlay audio, and — critically — no audible forward-collision, rear-cross-traffic or lane-departure warning. The cabin is completely silent. The condition is intermittent, appears at start-up, and can persist for hours; a restart sometimes clears it. Because the visual and audible warning channels are decoupled, a driver can be unaware the alerts are muted until a warning is needed. Owners report repeated dealer repair attempts without resolution.