2023 GMC Sierra 1500 · symptom sheet
Trim or a body panel comes off while driving
- 59owner reports
- 51,350median miles
- 0involved a crash
Newest report Sep 26, 2026 · checked Sep 29, 2026
143 of the 480 complaints on this car are about the structure. 59 of those describe trim coming off.
Tick what matches of 59 reports
Trim coming off on other Sierra 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2024, 2025, 2026.
What this problem usually is
Owners in this group describe a piece of trim or body cladding that came off the car in motion: a pillar cover, a windshield molding, a grille, a roof rail or a bumper cover. Most say it flew off on the highway.
What got replaced
Owners who name the part that was replaced mention the grille or bumper cover (56 reports).
Recalls and investigations
One recall on the structure covers the 2023 model year. A recall on the same system isn't always the same failure, so read the defect text.
The daytime running lights (DRLs) may not deactivate when the headlights are on.
All 3 recalls on the 2023 GMC Sierra 1500, with the owner complaints on each recalled system
When it happens
The middle half of failures fell between 48,210 and 70,000 miles, from the 8 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 1 service bulletin or notice for the 2023 GMC Sierra 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This technical bulletin provides repair information to correct a customer concern of the foam strip between the I/P trim and base of the windshield detaching from the upper I/P trim panel.
What owners wrote
“The grille deflector suddenly detached from the truck and flew off into traffic. It narrowly missed the vehicle behind me and could have caused a serious accident or injury. There was no prior warning or impact that would explain the failure.”
Filed Dec 23, 2025
“Upper grill molding trim/bezel flew off truck. Part was recovered and clips look to have broken off. Plastic clips look to be insufficient and will break over time. Active recall for 2022 model vehicles only , needs to be expanded to 2023 or possibly further out.”
Filed Nov 8, 2025
“Molding between top of grill and hood came off while traveling on highway and struck windshield and broke it.”
Filed Oct 27, 2025
“Part of the grille of my 2023 GMC sierra AT4X flew off driving 75 miles per hour on the highway, i believe it has to do with the fasteners of the upper grille bezel.”
Filed Aug 30, 2025
Should you keep driving it?
This page can't tell you that. 0 of 59 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Engine failure, knocking or rod bearing 113 reports
- Engine stalls or loses power while driving 94 reports
- Check engine light or misfire 43 reports
- Infotainment, screen or backup camera fails 29 reports
- Windshield cracks or distorts 27 reports