2024 GMC Sierra 1500

The Office of Defects Investigation (ODI) has received 118 complaints alleging detachment of the upper grille deflector on 2022-2024 model year (MY) GMC Sierra vehicles. 21 of these 118 complaints allege that the upper grille deflector detached after Recall 25V-060 was performed. The complaints allege that the upper grille deflector detaches while driving. In some cases, leading to a cracked windshield or surrounding vehicles needing to conduct evasive maneuvers. On February 6, 2025, GM submitted Recall 25V-060 addressing upper grille deflector detachment for 2022MY GMC Sierra vehicles manufactured with a chrome grille deflector. 2022MY GMC Sierra vehicles which were not manufactured with a chrome grille deflector and 2023-2024MY GMC Sierra vehicles were not included in the recall. ODI is opening this Recall Query (RQ) to assess the adequacy of the scope and remedy for Recall 25V-060. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.  This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V-274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. Additionally, ODI has received 191 reports of L87 engine failures in engines produced after the production period cited in Recall 25V-274. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI is opening this Engineering Analysisto continue investigating complaints of post-remedy engine failure. ODI is expanding the scope of this Investigation to include engines produced after the production period cited in the recall. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019–2024 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2021-2024MY Chevrolet Suburban and Tahoe, GMC Yukon/Yukon XL, and Cadillac Escalade/Escalade ESV vehicles. The subject engine failures were investigated as part of a Preliminary Evaluation (PE25001).  GM determined that these engine failures were due to multiple supplier manufacturing and quality issues. GM issued recall 25V-274 to address the supplier manufacturing and quality issues produced between March 1, 2021, and May 31, 2024. Based on the issuance of recall 25V-274, NHTSA has closed PE25001. ODI continues to receive a significant number of reports of engine failure in vehicles outside the scope of 25V-274.  This presents a potential safety risk that warrants further investigation.  ODI is opening this Engineering Analysis (EA) to further evaluate the scope and severity of the potential problem and to fully assess the potential safety-related issues of vehicles built outside the recall scope. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.  This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V-274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI will close this RQ and continue to investigate complaints of post-remedy engine failure for Recall 25V-274 as part of an Engineering Analysis (EA26005). To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

**Subject: Complete Engine Seizure After GM Recall Remedy – 2024 GMC Sierra Denali 1500, 6\.2L V8** I am reporting a catastrophic engine failure involving my 2024 GMC Sierra Denali 1500 equipped with the 6\.2\-liter L87 V8 engine\. At an earlier date, my vehicle underwent GM safety recall 25V274\. The dealership performed the required inspection, changed the engine oil to 0W\-40, and installed the replacement 0W\-40 oil\-fill cap\. The truck was returned to service\. On October 31, 2026, I experienced an unexpected engine shutdown while driving\. The instrument cluster displayed “Please Restart Engine\.” I subsequently brought the truck to a GMC dealership for inspection\. The dealership reported finding nothing wrong and released the vehicle back to me\. On November 3, 2026, while driving home from that inspection, I attempted to pass another vehicle\. While occupying the passing lane, my engine suddenly failed and seized without warning\. The truck lost all engine power and began coasting\. I was forced to maneuver the disabled vehicle off the roadway and into a ditch\. I contacted OnStar roadside assistance, which located my vehicle and dispatched a tow truck\. The vehicle was transported back to the dealership, where it remains\. This engine failure occurred after completion of GM’s official recall remedy and immediately following an additional dealership inspection that found no problems\. I believe this incident warrants investigation under NHTSA Engineering Analysis EA26005, which concerns L87 engine failures following recall repairs\. The sudden loss of propulsion during a passing maneuver created a serious collision hazard\. I request that NHTSA investigate this failure and evaluate the effectiveness of GM’s recall remedy\. **Vehicle:** 2024 GMC Sierra Denali 1500 **Engine:** 6\.2L L87 V8 **Mileage at failure:** 40,035 **Final failure date:** November 3 2026

NHTSA ID

11775623

Incident

Nov 3, 2026

My 2024 GMC Sierra 1500 SLT has recurring failures of its factory 13.4-inch Google built-in infotainment system, creating significant driver-distraction hazards. Google Maps frequently freezes, crashes, or refuses to calculate routes, even to familiar destinations. Navigation malfunctions occur on approximately 90-95% of days I use it, although individual attempts sometimes work. Certain addresses consistently fail while others work. The system also experiences severe lag, intermittent audio interruptions, and voice assistant failures. The assistant often correctly transcribes spoken commands but fails to execute them. When navigation fails, I must resort to my phone to search for destinations, enter addresses, or manually select locations. Repeated attempts to operate the malfunctioning navigation and voice controls have diverted my attention from the roadway. On multiple occasions, this distraction has contributed to unintended lane deviations while driving on highways. These failures create a serious distraction risk, particularly when navigation is needed in unfamiliar areas. The dealership recommended Apple CarPlay as an alternative, but CarPlay causes additional connectivity and infotainment problems, so I have disabled it. The vehicle has undergone three dealership visits for these concerns. First, technicians reprogrammed the infotainment software using USB. Second, they diagnosed radio faults and replaced the infotainment module under warranty. The replacement performed worse, including repeated navigation failures during a trip near Ames, Iowa. On [XXX], at approximately 19,767 miles, Cable Dahmer of Topeka referenced GM bulletin PIC6602Y and advised that GM Engineering is investigating the issue. No further repair was performed, and no resolution timeline was provided The defects remain unresolved despite multiple repair attempts. I request NHTSA investigate whether these widespread infotainment failures constitute a vehicle safety defect INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATI

NHTSA ID

11774957

Incident

Sep 26, 2026

The plastic attachment points and clips holding the upper chrome grille deflector fractured and flew off my 2024 GMC 1500 Denali.

NHTSA ID

11774683

Incident

Oct 9, 2026

On Monday of this week I was driving on the freeway and the top trim piece flew off the grill and almost cracked my windshield. It flew over my truck and landed on the road. When I inspected the damage, the plastic parts that were supposed to keep the grill on the truck had cracked and the screws that would normally hold the piece in place were still screwed tight to the truck. I was lucky that no one was driving close to me because their vehicle could have been struck by this part.

NHTSA ID

11774548

Incident

Oct 26, 2026

The contact owned a 2024 GMC Sierra 1500. The contact stated that while driving approximately 65 MPH, there were flames coming from the front passenger side of the vehicle. The contact immediately pulled over and exited the vehicle before the vehicle became engulfed in flames. The Fire Department was called to the scene and extinguished the fire. The vehicle was destroyed and later towed away from the scene. During the fire, the contact sustained a leg and back injury from falling while frantically exiting the vehicle. The cause of the failure was not yet determined. The contact stated that the engine installed at the time of the fire was a replacement engine installed after the original engine had seized and was replaced under NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING). The failure mileage was 110,000.

NHTSA ID

11774492

Incident

Oct 7, 2026

Mileage

110,000 mi

The contact owns a 2024 GMC Sierra 1500. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the recall repair failed to prevent a failure from occurring after passing the PICO Test. The contact stated that while driving 20 MPH, there was an abnormally loud metal clashing sound coming from under the hood. The vehicle was taken back to the same local dealer where it was test-driven, and the vehicle failed the new PICO Test. The failure mileage was approximately 23,400.

NHTSA ID

11774171

Incident

Apr 15, 2026

Mileage

23,400 mi

Subject: Complaint — 2024 GMC Sierra 1500 Denali, Upper Grille Deflector Detached at Highway Speed. To the Office of Defects Investigation, I’m filing this complaint regarding my 2024 GMC Sierra 1500 Denali. While driving on the freeway at approximately highway speed this afternoon, xxx, the upper grille trim piece located above the grille and in front of the hood spontaneously detached from the vehicle with no warning and no prior impact. It created a road hazard for other motorists. This matches the failure pattern described in Recall Query RQ26003, opened xxx, covering 2022 through 2024 Sierra 1500s. My truck is a 2024 and is not covered by Recall 25V-060, which only addressed certain 2022 models. I’m concerned the defect is not limited to the originally recalled population, and that the 2025 remedy may not have resolved the underlying attachment-point failure. I request that NHTSA include my vehicle and all similarly affected 2024 trucks in any expanded recall or investigation, and that GM be required to provide a free repair. Vehicle: 2024 GMC Sierra 1500 Denali. VIN:xxxxxxxx. Mileage: 64,952. Date of failure: xxx. Location: [XXX]. Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11774164

Incident

Oct 27, 2026

The upper front grille deflector (or chrome hood molding) on 2024 GMC Sierra 1500 AT4 with 38k miles broke off at 65 mph and hit the windshield. It could have cracked or hit a person or another car. No warning or prior issue at all. The plastic clips must have broke

NHTSA ID

11773937

Incident

Oct 27, 2026

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3

This Preliminary Information provides diagnostic tips and guidance for situations where key fobs cannot be learned or programmed successfully.

Beginning with 2026 model year production, the floor console/armrest lamp design was changed by removing the tilt-switch ball. As a result, the lamp remains illuminated when the floor console compartment lid is closed. The BCM turns the lamp off after the ignition is switched off to prevent battery rundown. This PI is to inform dealers of the change in the lamp and operation of the lamp following repairs.

This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed.