Body Problems of GMC Sierra 1500 - part 1

The grill deflector near the hood flew off on the highway … took it to the dealership and they only have a recall for the chrome 22 GMC sierra grill deflector for the same issue but not the elevation black . . No warning lamps or lights it flew out of know where no warranty to cover it.

See all problems of the 2022 GMC Sierra 1500 🔎.

There is a water leak in the rear passenger compartment of my vehicle. Unsure where water is coming from. Continued leaking poses a risk to my safety as I may be exposed to black mold as well as anyone else who is riding in my vehicle. The problem hasn’t been addressed by the dealer yet but this is a known issue. At this point I have spoken with a representative from the service department at the dealership but cannot get an appointment for several weeks. I was also advised that the problem would need to be diagnosed before being addressed at my cost due to being outside of the warranty period. There were no warning lights or any other signs that this is occurring and was only discovered because I was putting something in the back seat on 6/26/26.

See all problems of the 2021 GMC Sierra 1500 🔎.

I was driving down the highway and the front upper grille deflector flew off while at highway speeds. Due to the nature of being on a highly congested bridge, the grill piece flying off could've seriously injured not only myself, but other motorist around me. There is currently a gm recall (n242490120) out however, it only affects the 2022 model trucks. This makes no sense as this issue has been reported via threads and discussions on the internet for 2023 year models like mine numerous times. This is a serious issue and should be recalled just like the 2022 models. Not only am I now paying for a manufactuer defect out of pocket, but who's to say that the "new" part doesn't do the same thing and either I or another motorist is seriously injured or worse. . . Killed.

See all problems of the 2023 GMC Sierra 1500 🔎.

The front grill deflector sheared off of the truck when driving in the highway. The highway speed was 65 mph and the deflector flew out in to traffic. There was no warning or symptom prior to the problem or failure. This is a common ongoing issue with the same make/model of the previous year 2022 with an actual open recall unfortunately.

The attachment points for the upper chrome grille deflector have fractured, causing the trim piece to detach completely while driving and fly over my windshield which startled me and made me swerve dangerously. This is a known recall for the truck year before me and should clearly affect my truck too since the same description happens here.

I was driving down the highway and the top grill trim 84957848 part number, flew off. Hit my windshield. Could’ve caused the small car behind me to blow a tire or damaged their vehicle.

See all problems of the 2024 GMC Sierra 1500 🔎.

Bezel flew off on highway. Subsequently, dealer service had to replace both the bezel and grill bc of how it was attached. For some reason the VIN was not included in a recall of 70k trucks that were same year make and model as mine. I would like to be included in the recall.

On 05/30/26, during normal operation of my vehicle (2022 GMC sierra elevation) at about 50mph the upper grille molding became detached while on the highway. The safety of other cars or motorcycles was placed at risk because the part could have impaled or impacted myself through a windshield or someone driving behind me. The problem has been known to exist in other similar models and an existing recall does exist for those models (n242490120 chrome grille deflector may detach). On 06/01/26 the vehicle was taken to a kelly Buick GMC, inc where it was assessed. According to the representative, even though I have not been the only one to report the problem with a different model than that specified on the recall number, they refused to cover the cost of repairs because my VIN does not fall into the recall specifications. Absolutely no other symptoms were noted prior to the part failure no rattling, whistling or any visible signs.

Top grill deflector flew off at highway speeds creating a safety hazard for me and others in the highway. 2022 GMC sierra with the same part and grill was previously recalled for this identical issue. 2022-2026 models have the same problem and should be included in the recall. Please see safety recall n242490120.

I was driving, my front grill protector that was fixed with recall flew off again. This needs to be fixed. The part flew off hit my window and almost hit two cars that were behind me. This could of resulted in a bad accident. No warnings, it just happened.

Driving down the interstate and the front trim bezel on the hood flew off. The plastic clips broke from underneath. Gm had a recall on this same issue in 2022 but not 2023 yet. Could of had an accident with the piece flying off at interstate speeds.

The front upper grille deflector detached and hit my windshield and bounced off behind me during a drive at normal highway speeds. This created a random flying debris object that appears to have been a problem with the 2022 and later Sierra 1500 models; however, the recall only appears to address the 2022 model. It also appears quite common for the 2024 year model as well. Vehicle has never been in an accident so nothing beyond typical use would have caused damaged to the connections. The plastic connectors appeared to have failed.

The front grille deflector on my GMC sierra flew off my truck on a windy day, hit my windshield hard but luckily did not crack it. A vehicle behind me did swerve out of the way to avoid the flying grille deflector but no accident luckily occurred. The piece is damaged but I was able to recover it. I had called the dealership I bought this vehicle at ( around June of 2025) they had confirmed this recall was “fixed” a few months prior to my purchase of the vehicle. Question from me would be, would my local certified gm dealership be able to provide this recall fix? I do not necessarily like the idea of taking back a potential highway safety hazard 2 hours away from my home on the interstate 70 mph back home once this is fixed / repaired with glue/ epoxy that may need 24-48 hours of drying time to cure. Also how can I trust the dealership who “fixed” this issue for it not to happen again?.

The plastic upper rail glass guide frame on the rear sliding window assembly of my 2023 GMC sierra developed structural micro-cracks during normal vehicle operation. This manufacturing defect is a known issue tracked internally by the manufacturer under technical service bulletin (TSB) #18-na-383. This structural failure allows severe water intrusion into the passenger cabin. The leaking water runs straight down the inside back wall of the cab, completely flooding and corroding sensitive, factory-installed electronic safety modules mounted directly beneath the leak path. This continuous water intrusion caused the catastrophic electrical failure and corrosion of the video processing control module located behind the rear seat. The sudden failure of this module completely disabled the rearview digital mirror camera and the 360-degree perimeter driver assistance cameras, creating immediate blind spots and an active driving safety hazard while operating the vehicle. The vehicle was inspected and repaired by an authorized dealership, confirming the rear window leak as the direct cause of the electronic destruction. The out-of-pocket cost to replace the water-damaged safety components was $2,747. 00. Because the manufacturer refused to cover the replacement of the defective rear glass assembly, the structural leak remains unresolved. This active water intrusion continues to flood the cabin, creating a health hazard via mold growth and guaranteeing that the newly replaced safety cameras will inevitably short-circuit and fail again.

It was the chrome grille deflector and is available for inspection. I was driving down a long road at roughly 50 mph when all of a sudden the grille deflector detaches from my bumper and hits my windshield causing me to swerve thinking I had hit something. I was almost in an accident. I believe there is a recall for this exact thing but only for 2022 models not 2023. No it has not been inspected I tried to call gm to get guidance and see if it could possibly be covered seeing as it is a manufacture error but was denied. One small piece that has been recalled on other vehicles but mine is causing me to almost pay $900 dollars. I have yet to replace the part.

Upper grille detachment while driving on the interstate at 70 mph at night ,hit the windshield. Could not find it.

As I was driving down the highway the hood front molding flew off and took a chunck of paint off my GMC 2023 at4, hitting a elderly ladies windshield we pulled over there was no damage to her car thankfully, she was very shakin and gave me an ear full. I have reached out to GMC even took it in and left it overnight and they say it is not under the recall and it will cost $1200. 00 to fix. We currently own 3 GMC's, this one is mine (a woman) and she is my baby. I do not think it is fair that my truck matches the exactly damage you see on the trucks on the recall list, a service man also told me that they replaced one of them that was recalled and shortly after it to broke and flew off. If there is anything someone can do help, I know I am not the only one this is happening too. Thank you j.

The tailgate intermittently opens while driving or parked.

Driving on the highway and the top section of the grill (approx 4" x 50") broke loose and went over the cab of the truck. The piece didn't hit my truck or any other vehicle, but the driver behind me swerved to avoid it. All of the clips that hold the chrome piece to the vehicle are still attached to the body. I made contact with the local dealer's service dept. And was told my VIN was not in a recall for this issue. I contacted gm customer care and was told the recall hasn't been extended to my vehicle and that I would have to pay for the replacement. If gm extends the recall to the other known issue model years I could be reimbursed. There seems to be numerous other complaints of this issue that aren't covered by gm.

I was driving down the interstate and the hood valance blew off and hit my windshield.

I had the recall performed to reinforce the upper grille deflector on my truck because there was risk of it flying off at highway speeds. Last week driving down the highway my grille deflector flew off and had the car behind me not swerved, they would have been struck by it. I have an appointment at my dealership tomorrow.

I was driving at 65mph through a construction zone on my local freeway - through a construction zone. With cruise control on, my upper bezel portion of my grill detached. It slammed into my windshield and hit the semi behind me after bouncing off the road. Luckily, neither of us swerved drastically. However, with workers in the area, this could have been a catastrophic event. After contacting my local gm dealership, I was told "yeah, that just kind of happens from time to time". When relaying that information to the gm customer service team, they told me to ask for a courtesy credit from the dealership as I was out of warranty on bumper to bumper. There were no prior issues with this part on my truck that I was aware of leading up to this event. It additionally caused damage to my windshield and roof.

Paint flaking top above windshield within one year of ownership! paint flaking on left rear door within last month!.

See all problems of the 2018 GMC Sierra 1500 🔎.

Top grill assembly blew off in high winds scratching the windshield and cracking part of it.

The plastic piece above the front grill detached and flew off the truck. I’m not sure the name of the part.

Electronic truck tail gate opened while driving after washing vehicle. The tailgate button on the fob or inside the cabin were not pressed.

Front chrome hood deflector detached while driving down the interstate. Had a recall on the deflector, recall was performed and the chrome deflector still detached. Tried to get gm to repair and they declined my recall claim. Gm stated my 3 year bumper to bumper warranty had expired and they did not have to fix it. This is an extremely hazardous condition and should be covered.

The grille deflector flew off while driving. The same exact problem the 2022 sierra had as described in n242490120.

The front upper grille broke off and detached at highway speeds. The grille impacted the hood, causing a scratch and dent and became a road hazard and has the potential to cause an accident. This is the same failure reported in NHTSA campaign number: 25v-060 that only covers 2022 model years. Research online indicates failures in 2022, 2023 and 2024 vehicles. GMC to date will not warranty or recall this gross safety violation.

Truck started to make loud clunking noise when driving taken it to two shops and wrong parts were installed as stated below. Bought from a used car dealership and they sold it as is now with the wrong parts.

See all problems of the 2015 GMC Sierra 1500 🔎.

Bad paint used by manufacturers that causes frames to rust out.

While driving 65mph in my 2024 GMC sierra denali ultimate on interstate 270 in hilliard, ohio my chrome grill deflector just flew off and hit my windshield. It then went over my truck and almost caused a major accident with the cars and semi-trucks behind me. I was lucky to maintain control of my own vehicle! it appears to me that the mounting fractured and it looks like manufacturing defect. Looks like the same issues recalled in 2022 year models. How many have to die before gm fixes this issue? they now want $1,500 for a new grill on my 2024 truck.

Front upper grille trim violently ripped off while driving down the highway. Hit windshield and flew up and over the car into traffic on the highway.

I was driving down the road and my top grille molding flew off.

The motor stoped working 6. 2. Left me stranded in the middle of the road. No warning, the engine just gave up and stopped working. As well as the grill flying away and breaking my windshield, this happened last year in February while driving 75 mph.