As I was driving on the highway the upper top moulding from the grill came off causing scratches to the hood. This is dangerous if it flies off into the windshield. This has been an issue for GMC.
2024 GMC Sierra body problems
moderate 21 complaints filed with NHTSA · avg repair $1,500 · see body across all vehicles →
Complaints
21
Recalls
0
Avg fix
$1,500
1injury
The failure pattern owners describe
Owners of 2024 GMC Sierra 1500 trucks have filed 17 body-related complaints. The most consistent issue involves the front grille molding or deflector coming loose at highway speeds—drivers report the part vibrating, flapping, detaching, and striking windshields or hoods between 27,500 and 36,700 miles. Some failures happened within days of purchase. These same failures were recalled for 2022 models under NHTSA Campaign 25V060000, but GM has not extended that recall to 2024 models despite using the same part numbers. Owners cite replacement costs around $1,500.
Tailgate latch failures appear in six narratives. Tailgates pop open while driving without button activation, triggered by bumps or highway driving, often resulting in cargo loss. Dealers acknowledge multiple similar complaints across 1500 models but offer no fix beyond deactivating the electronic system. A recall exists for 2021–2023 Sierra models with this identical failure, but 2024 models are excluded.
One owner reported water leaking from the windshield at 10 miles, causing mold infestation that triggered medical symptoms. The dealer could not duplicate the failure despite video evidence and took no action.
No warning lights or driver information center notifications precede any of these failures, leaving owners unaware until the part detaches or the tailgate drops.
Same GMC Sierra body reports on nearby years: 2022 · 2023
Failure modes owners describe
Windshield water leak and mold infestation
Water leaking from the windshield seal leading to mold growth inside the vehicle. Owner reported health effects (sinus swelling, rashes, hives, fatigue, fainting) from mold exposure. Dealer stated failure could not be reproduced and found no issues despite video evidence provided by owner.
When: Approximately 10 miles
Symptoms owners cite: Water leaking from windshield; Mold odor or visible mold; Owner reported weakness and fainting after 20 minutes of driving; Swollen sinuses, rashes, and hives attributed to mold exposure
Repairs/costs cited: Vehicle not diagnosed or repaired. Aerotech company confirmed mold presence in air filter. Owner's physician documented unsafe conditions for vehicle operation.
Recalls/TSBs owners mention: Manufacturer notified but provided no assistance.
Tailgate opens unintentionally while driving
Tailgate latch fails and tailgate drops while vehicle is in motion without driver activation. Multiple occurrences reported; items lost from bed creating road hazard. No warning lights or notifications on driver information center. Similar issue affects 2021-2023 models under recall but 2024 not included.
When: Around 2,000 miles and later occurrences; timing varies with bumps or highway driving
Symptoms owners cite: Tailgate unlatches and opens while driving; No warning lights illuminated; Occurs after hitting bumps or on highway; No driver activation of tailgate button; Cargo loss from truck bed
Repairs/costs cited: Dealer has offered to deactivate electronic tailgate system as workaround (owner declined). Service personnel report multiple complaints on 1500 models with no fix available.
Recalls/TSBs owners mention: No recall issued for 2024 models despite recall existing for 2021-2023 models with same failure.
Front grille molding/deflector detachment at highway speeds
Upper front chrome grille molding or deflector detaches while driving at highway speeds (55–75 mph), becoming a road hazard. Detached parts strike windshield, hood, or fly toward other vehicles. Same part number and failure reported on 2022 models under NHTSA Campaign 25V060000 but not recalled for 2024 models. Multiple owners report similar failures online.
When: Between 27,500 and 36,700 miles; some failures occurred shortly after purchase (within days)
Symptoms owners cite: Chrome grille or upper molding vibrates while driving; Grille or molding becomes loose and flaps; Part detaches and strikes windshield or hood; Part becomes airborne toward following vehicles; No warning lights or alerts prior to detachment
Repairs/costs cited: Grille parts not secured by dealer upon replacement; replacement grille costs reported at $1,500. One owner used zip tie as temporary fix. Some failures occurred twice on same vehicle (second instance required duct tape repair at truck stop).
Recalls/TSBs owners mention: NHTSA Campaign 25V060000 recalled 2022 models only, despite same part number and identical failure pattern on 2022–2024 models. Manufacturer does not warrant or recall 2024 failure.
Synthesized from 21 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
I was driving down the highway at 65-70mph and the top part of the grill flew off, causing scratches to the wind shield. There’s has been a recall on this for 2022 GMC 1500 Sierra’s but I am driving a 2024 and the issue is still the same.
Had body trouble with your 2024 GMC Sierra?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the body problem on the 2024 GMC Sierra?
It's a documented issue but not catastrophic. 21 complaints have been filed. Repairs average $1,500 and most owners catch it before it causes a breakdown.
At what mileage does the body typically fail?
Based on the 21 complaints filed, body issues most often appear around 18,500 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,500 for body repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to body?
No active recalls currently cover body issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2024/GMC/Sierra.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.