GMC Sierra 1500 headlights problems

Filed Aug 6, 2026 · Driver assistance · FL

For the past 6 months I’ve had issues with my crash avoidance system, steer assist and lane departure warning. The crash indicator light would illuminate on my dash for no apparent reason. That would disable my crash warning system, steer assist and lane departure warning but, I could still adjust my distance for my brake warning indicator. The other problems that are not safety related is cruise control and automatic high beam lights will not function. I researched the Internet and found this is not an uncommon problem for this year model. The most common fix (if the windshield is not dirty) was remove the F 11 fuse, in the fuse panel beside passenger door for 10 seconds, that would allow the system to reboot. That worked for 3 months with more than 10 occurrences of the light illuminating on the dash. Now the crash indicator light is on continuously and will not reset by removing the fuse. The computer is up-to-date and all the settings in the infotainment system for the crash avoidance system are activated. Check numerous Internet websites, the cameras for this system is on backorder. So there must be a parent problem with the system. I was required to purchase 36 months of OnStar, I did not purchase a renewal agreement after the 36 month and this issue started soon after.

Filed Jul 15, 2026 · Driver assistance · TX

I purchased this new full-size heavy-duty pickup, and at purchase the selling dealer installed a 3-inch suspension lift kit with 37-inch tires on 22-inch wheels as a paid dealer upfit. The lift kit manufacturer publishes a maximum tire size of 35 inches on a 20-inch wheel for this kit; the tires and wheels the dealer installed exceed that spec. The lift manufacturer confirmed directly that they would never approve exceeding the 35-inch tire / 20-inch wheel recommendation. The dealer's assistant manager confirmed that NO calibrations of any kind were performed after the lift and 37-inch tires were installed, and said nothing is recalibrated when a lift is done with 37-inch tires. This vehicle is factory-equipped with forward collision alert, automatic emergency braking, front pedestrian braking, lane departure warning, and automatic high-beam control. These crash-avoidance systems rely on forward-facing camera and sensor aim, which depends on ride height and suspension geometry. A 3-inch lift with 37-inch tires materially changes that geometry. With no calibration performed, there is no assurance these safety systems are aimed or functioning to spec. The truck was also never aligned after the lift and the tires are cupping. The headlights were never re-aimed for the higher ride height, and the speedometer was never recalibrated and reads inaccurately. The oversized tires also contact the body. The left front tire has torn into the front fender, the fender well is misaligned, and it is forcing the lower front edge of the driver's door out of alignment. The dealer's only proposed remedy is to keep cutting the fender wells; the trimming already done has exposed electrical wiring behind the wheel well to mud, water, and road debris. I am reporting this because the assistant manager's statement suggests it may be the dealer's standing practice—other customers may be driving lifted trucks with uncalibrated crash-avoidance systems without knowing it.

Filed Jun 13, 2026 · Engine, Lights · NJ

While coasting down or under very light acceleration between 12-20 mph the vehicle has a shudder like driving over a highway rumble strip. While cruising on the highway at 65+ mph, the vehicle has a light shudder or vibration. Vehicle has been checked numerous times for wheel and tire inconsistencies. Brake pads and rotors have also been replaced with no change in issue. Headlights daytime running light changes color from bright white to purple during warm weather. The vehicle has been to 3 different GM dealerships and they acknowledge the issues but do not provide a resolve.

Filed Mar 27, 2026 · Driver assistance, Electrical · 51,000 miles · NY

The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving at various speeds, the driver's side seat vibrated, and the automatic high beam feature disengaged, and the lane change indicator became inoperable. The message " Crash Sensor System Inoperable" was displayed. The dealer was notified of the failure and advised the contact to temporarily disconnect the battery. The contact followed the instruction; however, the failure recurred a day later. The vehicle was taken to the dealer, where it was diagnosed, and determined that there was a glitch in the crash sensor system. The dealer determined that the system needed to be updated. The vehicle was repaired out-of-pocket. The manufacturer was contacted and informed the contact that the failure was a maintenance issue, and the repair was at the owner's expense. The failure mileage was approximately 51,000.

Filed Mar 23, 2026 · Engine · OH

L87 engine failure 4 months after it passed the recall test. Experienced shuddering and rpm fluctuation with the cruise control set. Was thinking torque converter. Got it replaced under warranty and the the issues were still there. A week after new TC the truck was running very rough driving down the road. Check engine light along with a low oil Pressure warning and Lost all engine power going 60mph. Would not re fire. Had to coast to a stop with no headlights on only fog lights. Truck is at dealership now will be needing a new engine. P0016 engine code. The truck was in the shop multiple times for misfire and rpm’s jumping and cruise control turning off on its own.

Filed Mar 19, 2026 · Driver assistance · MI

A few weeks ago my adaptive cruise stopped working, as well as the automatic high beam system (not sure the technical name). As there was a warning light displayed, I brought it into the dealership to have them check it out. The technician jumped in really quick, made some changes within the control panel, and the light came off. As I drove out and tried to use the adaptive cruise control, it didn't work and I almost went into the back of a truck. That all being said, I brought it back into the dealer last week for them to diagnose the problem as a failed front windshield camera. I find it hard to believe that this camera can fail at 50k miles, and the repair with parts and labor costing approximately $1000. This is an advanced system designed to improve the driver experience and heavily marketed. Considering this is tied to safety in some capacity, shouldn't GM cover this repair? I quickly googled the issue and found others have had the same failure. The camera system combined with the control panel covers so many applications, I would be concerned about other issues with the truck. Not to mention the massive recall of my L87 engine and water pump failure that I have also dealt with. I appreciate you taking the time to read my rant. Not sure if this will do anything, but it would be nice to have some sort of relief from the OEM due to the issues I have already experienced owning this truck.

Filed Dec 9, 2025 · Engine · LA

On Dec 4, 2025, my wife was driving at night on a Texas road going 75mph. Her truck died while driving and the truck shifted into neutral and computer said to restart. When she did, all electrical power was lost including headlights while traveling at 75mph at night. Vehicle eventually was started after she got to the side of the road. A check engine light was present. She made it to her destination with no further problems. Vehicle was taken to the dealership the next day. They said that she may have catastrophic engine failure that is common on the 6.2 liter GM motors.

Filed Dec 8, 2025 · Driver assistance · FL

Vehicle experiences a failure to the Lane Departure Warning and Intellibeam headlamps functions, primarily at night. Trouble first began on 3/12/2023 and has been to two GM dealerships for 11 repairs and the problem is still unresolved. GM Executive Escalations have been opened and the problem is still unresolved. Their response is that 18 vehicles experienced this problem and the resolution was to clean the front windshield and update the camera software. This truck has had the camera replaced and software updated three times by two different dealerships. GM is now stating they are unwilling to resolve the problem any further and they would no longer send any Field Engineers to investigate the problem. I have numerous photos, videos and repair logs from with the problem and resolutions performed. Nature of problem: At night, the indicator button for selecting the Lane Departure Warning will go out. If the button is depressed, a message in the DIC indicates Lane Departure Warning Unavailable and there is no way to activate the LDW. It also causes the Intellibeam headlamps to not work. Any help you can provide is greatly appreciated.

Filed Nov 24, 2025 · Lights, Visibility · NY

While driving in the rain, the windshield wipers were on the highest intermittent setting and the high beam headlights were also on, automatic highbeams were not. The high beam lights dimmed to low, and the windshield wipers stopped in the middle of the windshield in the middle of navigating a sharp right hand turn at 35mph. The wipers stopped for approximately 30 seconds and then resumed operation. When the wipers resumed operation, the headlights also turned back on high with no input from the driver.

Filed Nov 2, 2025 · Engine · AL

Was driving at about 55 mph and vehicle popped up with warning and said shift into neutral to restart. I tried to and all power turned off. This was at around 8 p.m. so no headlights or anything. Luckily got it stopped without hitting anything. Had vehicle towed and motor was locked up. Spun bearing they said. Same issue apparently as other 6.2 liter engines have been having.