Engine. Review the 42 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports1 fire reports2 injury reports

What owners actually said

71 reports

Mileage unknown · Feb 11, 2025

Air BagsElectrical SystemSteering

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Our 2021 Cadillac Escalade has experienced multiple ongoing issues. The “driver airbag warning” light has been a major concern, with the dealership stating that the airbag could malfunction at any moment. When we took the vehicle in for repairs, they determined that a previous maintenance job on the driver’s airbag was done incorrectly, which was causing the warning light to activate. Additionally, the vehicle intermittently displays warnings for the “service system restraint system,” “service power steering column,” “reducing features to save battery,” and “service driver assist system.” Despite multiple visits to the dealership, we are consistently told that their diagnostic computers do not populate any error codes, leaving them uncertain about the cause of these warnings. Another major issue is battery drainage. We replaced the original battery two years ago, yet we have needed Cadillac roadside assistance twice because the vehicle wouldn’t start. Each time, the battery tested as healthy, but the car remained inoperable due to a drained battery. Lastly, we have had to replace the remote key batteries every 2-3 months, which seems excessive for a relatively new vehicle. Safety Risks: The driver airbag warning light indicates that the airbag could malfunction at any moment, which poses a serious safety risk in the event of an accident. The service system restraint system warning suggests potential failure in critical safety components. Issues with the service power steering column could lead to steering difficulties while driving, increasing the risk of an accident. The reducing features to save battery warning and service driver assist system warning suggest possible electrical failures that could impact vehicle performance and safety. The other issues, including system warnings and battery drainage, have been repeatedly reported to the dealership, but they have been unable to confirm the cause as their diagnostic system does not register error codes.

NHTSA ODI #11642093

35,000 miles · Jan 30, 2025

Latches/locks/linkages

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The contact owns a 2021 Cadillac Escalade. The contact stated that while the vehicle was parked, the driver's side front door failed to unlock as intended. The contact stated that the driver's side front door failed to unlock from inside or outside the vehicle. Additionally, the contact stated that the key fob was inside the vehicle at the time of the failure. The contact crawled to the front passenger's side to exit the vehicle. The contact stated that because of the failure, the contact had been locked inside and outside the vehicle several times. The vehicle was taken to the dealer; however, the vehicle was not diagnosed. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was 35,000.

NHTSA ODI #11639702

Mileage unknown · Jan 30, 2025

Electrical SystemPower Train

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We are experiencing the error code "Rear Axle System Off" multiple times per day with this vehicle. The code will appear and then disappear and the car will make beeps consistent with those heard when there is a fault code or error message with the vehicle. The "Rear Axle System Off" code does not stay on permanently. When this occurs, it can delay the acceleration of the vehicle, cause shaking, etc. which could result in an accident as a result therefore putting the driver, passengers and other drivers on the road at risk. This has been an ongoing issue with the vehicle and it has been taken in for service three (3) or four (4) times for this issue which cannot seem to be resolved. We have notified GM Corporate of such as well and they opened a case number on it when last in service. That is GM case #[XXX] for your reference. I have previously filed a report to the NHTSA for this due to GM's inability to fix this issue after multiple attempts. The issue number assigned by the NHSTA was #11621174 for your reference. We have taken the vehicle to the dealer on multiple occasions and they have not been able to correct this issue. The dealer is Ed Morse Cadillac in Delray Beach, FL. The dealer claims that there have been no codes stored in the system when taken in previously and/or have not been able to replicate the issue. We find this hard to believe given that it happens many times per day without much driving. We potentially drive approximately 20-25 miles per day and it generally happens anywhere between 6 - 10 times per day. The dealer referenced above (Ed Morse in Delray Beach, FL) has admitted to seeing or replicating the code in the past during one of the prior visits. We have our next appointment scheduled for Monday, [XXX] to try and resolve this recurring issue as the dealer did not have any availability prior to this date. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11639670

Mileage unknown · Jan 22, 2025

Engine

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We were driving our 2021 Escalade Cadillac on the highway and the check engine light came on and then 10 seconds later the engine completely stopped without any further warning. If we had not been right by a highway exit, we would have stopped right on the highway. When the engine stopped completely, everything was useless. We couldn't use the windows or locks or even put the car into neutral to roll it off the highway. It took 5 hours for a tow truck to get to us and we had to wait with the car the entire time because a window was rolled halfway down and we could not lock the car. Our car was towed back to Midland, TX and now requires a brand new engine. The engine is on back order and there is no expected date. We may not get our car back for months.

NHTSA ODI #11637837

80,000 miles · Jan 22, 2025

Engine

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The contact owns a 2021 Cadillac Escalade. The contact stated that while his wife was driving at an undisclosed speed, there was an abnormal sound coming from under the hood. The contact stated that his wife was able to pull over to the shoulder of the roadway and shut off the vehicle. The contact arrived on the scene with a local independent mechanic and became aware of the abnormal sound coming from the engine. The vehicle was towed to a local dealer where it was diagnosed with a collapsed lifter, 2 bent push rods, and that a rotor needed to be replaced. The vehicle was repaired out of pocket. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.

NHTSA ODI #11637781

Mileage unknown · Jan 20, 2025

Engine

Under normal driving the engine seized with no warning and vehicle would not operate leaving me stranded on the street for several hours. This occured April 2024 with approximately 58000 miles. The Engine had to be replaced.

NHTSA ODI #11637017

Mileage unknown · Jan 17, 2025

EnginePower Train

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I bought this car used and within a couple hundred miles the car would just shut off and the dash lights came on. I took it in and they diagnosed it and replaced the camshaft actuator. Within a few hundred more miles the same symptoms appeared as I was driving on a 70mph freeway. I had to pull over to the shoulder and this time noticed a metallic smell. Car would not turn on. Had to get it towed back to the dealer. After a month there they informed me the engine seized and needs to be replaced. Approximately 6 weeks and still no estimate to when I will get my car back.

NHTSA ODI #11636615

Mileage unknown · Dec 18, 2024

Forward Collision Avoidance

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Driving on a clear sunny day with the cruise control set at 65 mph. With no cars either in front of me or either side my Escalade suddenly did a total panic stop almost causing a crash. While this was happening there was no throttle response and I was unable to gain control of the car My Escalade is in perfect condition, kept immaculately and has only 17,000 miles on it. Taking it to the dealer resulted in no issues found. If I was on an interstate with a tractor Trailer behind me this could have a caused a major accident.

NHTSA ODI #11631413

Mileage unknown · Oct 22, 2024

Electrical SystemEngineForward Collision Avoidance

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1) The car suddenly brakes as to avoid a collision when there are no cars in the proximity of the vehicle (think about driving on an open road on a sunny day and the vehicle suddenly brakes without warning). 2) We have received notice of low oil shortly after oil changes which have been performed at the dealership. It has been communicated to us by the dealership that it is common for these vehicles to burn approximately four (4) quarts of oil over the course of 2,500 – 3,000 miles leaving approximately two (2) quarts of oil remaining. Required tow to the dealership. 3) We have received rear axle warning messages and heard beeping noises alerting of such on at least thirty (30) occasions. The dealer has not been able to diagnose what the issue is and says that the computer is not storing any codes. They have not attempted any repair after being taken in for service on three (3) separate occasions. 4) In the past few days, the vehicle has thrown many error codes on the dashboard display including the rear axle service, service transmission unable to shift, service driver assist system. 5) On Tuesday, October 15th, 2024 the vehicle again began throwing error codes. The engine failed to start and was towed to the dealer via GM Roadside. Required tow to the dealership. 6) A fuel pump part required replacement as fuel was not properly being delivered to the engine. Required tow to the dealership. Safey is at risk. We have three (3) children who regularly ride in the vehicle with us along with the safety of others on the road (especially sudden braking).

NHTSA ODI #11621174

Mileage unknown · Oct 4, 2024

Unknown Or Other

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Dear NHTSA, I am writing to formally address the serious issues surrounding my 2021 Cadillac Escalade, VIN [XXX] [XXX] , which have been exacerbated by misleading communications and inaction from Lindsay Cadillac in Alexandria, VA. This situation has led to significant inconvenience and financial strain. On September 4, 2024, the vehicle was delivered to your dealership due to water leakage causing mold damage between the “B” and “C” pillars. Upon arrival, we were erroneously informed that the warranty had expired. It was not until September 15, 2024, after correcting this with Service Consultant Donna Wozniak, that it was acknowledged the warranty is valid through 2025. Despite clear signs of warranty-covered issues, the explanations provided by staff, suggesting the damage could be from towing or previous beach trips, are not only implausible but appear to be intentional diversions. The vehicle has never been used to tow nor has it been submerged in water, making these justifications unacceptable. The lack of immediate remediation upon the vehicle’s drop-off led to severe mold growth, a situation Mr. Sergio Desdunes has used to unjustly refuse warranty coverage, instead advising me to seek unwarranted insurance claims. Moreover, a recent disclosure by my insurance company highlighted a NHTSA service bulletin [XXX] ), initially recognized by Ms. Wozniak but subsequently dismissed by Mr. Desdunes. This deceptive handling suggests an attempt to avoid responsibility for the known defect. This culmination of neglect by Lindsay Cadillac in Alexandria dealership, notably the misuse of the mold condition as a reason to deny warranty obligations, underscores a grave lapse in service integrity and accountability. This conduct is unacceptable and compels me to seek further actions to resolve these issues effectively. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #11618026

Official recalls

25V619000 · Fuel System, Diesel:storage:tank Assembly

Sep 18, 2025

General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, 2021, 2023-2024 Chevrolet Tahoe, and 2022 and 2024 GMC Yukon vehicles equipped with a 6-cylinder diesel engine. The original fuel tank may have been replaced with an incorrect fuel tank, which can allow fuel to leak in a rollover crash.

Consequence & remedy

Consequence: A fuel leak in the presence of an ignition source increases the risk of a vehicle fire.

Remedy: Dealers will inspect for the correct fuel tank and replace it, if necessary, free of charge. Owner notification letters were mailed November 5, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252512770. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on September 18, 2025.

25V274000 · Engine And Engine Cooling:engine:hard Parts Internal/mechanical

Apr 24, 2025

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Consequence & remedy

Consequence: Engine failure increases the risk of a crash.

Remedy: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.

24V797000 · Power Train:automatic Transmission:control Module:software; Power Train:automatic Transmission:fluid/lubricant:valves/valve Body

Oct 24, 2024

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

Consequence & remedy

Consequence: Rear wheel lock-up can increase the risk of a crash.

Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.

Additional source detail variants (2)

Power Train:automatic Transmission:fluid/lubricant:valves/valve Body

Consequence: Rear wheel lock-up can increase the risk of a crash.

Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.

Power Train:automatic Transmission:control Module:software

Consequence: Rear wheel lock-up can increase the risk of a crash.

22V827000 · Exterior Lighting:lighting Control Module:software

Nov 3, 2022

General Motors, LLC (GM) is recalling certain 2021 Yukon, Yukon XL, Chevrolet Tahoe, Chevrolet Suburban, Cadillac Escalade, and Cadillac Escalade ESV vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence & remedy

Consequence: Daytime Running Lights that do not deactivate as intended may cause a glare, reducing visibility and increasing the risk of a crash.

Remedy: Dealers will provide an over-the-air (OTA) update for the Body Control Module software, free of charge. Owner notification letters were mailed December 15, 2022. Owners may contact GM customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222382220.

22V617000 · Seat Belts:critical Fasteners

Aug 11, 2022

General Motors, LLC (M) is recalling certain 2021-2022 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL vehicles equipped with third-row seats. The rivet that retains the buckle to the mounting bracket in the left or right side third-row seat belt buckle assembly may have been improperly formed.

Consequence & remedy

Consequence: A seat belt with a deformed rivet may not properly restrain an occupant, increasing the risk of injury during a crash.

Remedy: Dealers will inspect the rivet head formation on both the left and right side third-row seat belt buckle assemblies and replace seat belt buckle assemblies, as necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed September 28, 2022. Owner notification letters were mailed on November 1, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N222372380.

22V036000 · Power Train:driveline:driveshaft

Jan 27, 2022

General Motors, LLC (GM) is recalling certain 2021 GMC Yukon, Yukon XL, Cadillac Escalade, Escalade ESV, Chevrolet Suburban, and Chevrolet Tahoe vehicles. The rear wheel driveshaft assemblies may have internal components that were not heat-treated properly, possibly resulting in driveshaft failure.

Consequence & remedy

Consequence: Driveshaft failure can cause a sudden loss of drive power, increasing the risk of a crash.

Remedy: Dealers will replace the left and/or right rear driveshaft assemblies, free of charge. Owner notification letters were mailed on March 14, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212351030.

21V739000 · Fuel System, Gasoline:delivery:fuel Pump:control/drive Module

Sep 23, 2021

General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL vehicles. The fuel pump power control module may cause the fuel pump to fail or operate intermittently, which can interrupt fuel flow to the engine, and cause an unexpected engine stall.

Consequence & remedy

Consequence: An engine stall increases the risk of a crash.

Remedy: Dealers will replace the fuel pump power control module, free of charge. Owner notification letters were mailed on October 14, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; or GMC customer service at 1-800-462-8782. GM's number for this recall is N212332040.

21V421000 · Air Bags:srs Malfunction Warning Lamp/light; Electrical System:software

Jun 10, 2021

General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.

Consequence & remedy

Consequence: The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

Remedy: The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.

Additional source detail variants (2)

Air Bags:srs Malfunction Warning Lamp/light

Consequence: The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

Remedy: The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.

Electrical System:software

Consequence: The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

21V190000 · Seat Belts; Seat Belts:rear/other

Mar 18, 2021

General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, Escalade ESV, GMC Yukon, Yukon XL, Chevrolet Suburban, and Tahoe vehicles with third-row seating. The third-row outboard seat belts may have been entrapped or misrouted behind the outboard seat-folding mechanism, which could result in damaged seat belts.

Consequence & remedy

Consequence: A damaged seat belt can break during a crash, increasing the risk of injury to the occupant.

Remedy: GM will notify owners, and dealers will inspect the third-row outboard seat belts, replacing any damaged seat belts, and rerouting them if necessary, free of charge. The recall began on April 21, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313000.

Additional source detail variants (2)

Seat Belts:rear/other

Consequence: A damaged seat belt can break during a crash, increasing the risk of injury to the occupant.

Remedy: GM will notify owners, and dealers will inspect the third-row outboard seat belts, replacing any damaged seat belts, and rerouting them if necessary, free of charge. The recall began on April 21, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313000.

Seat Belts

Consequence: A damaged seat belt can break during a crash, increasing the risk of injury to the occupant.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

EA26005 · Loss Of Motive Power Due To Engine Failure Post Recall Remedy

Opened Aug 20, 2026 · No close date supplied

Status: open (inferred from source dates) · Engine

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.

RQ26001 · Loss Of Motive Power Due To Engine Failure Post Recall Remedy

Opened Jan 16, 2026 · Closed Aug 20, 2026

Status: closed (inferred from source dates) · Engine

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.

EA25007 · Loss Of Motive Power Due To Engine Failure

Opened Oct 23, 2025 · No close date supplied

Status: open (inferred from source dates) · Engine; Engine And Engine Cooling:engine:hard Parts Internal/mechanical

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.

Additional source detail variants (2)

Engine And Engine Cooling:engine:hard Parts Internal/mechanical

Engine

PE25001 · Loss Of Motive Power Due To Engine Failure

Opened Jan 16, 2025 · Closed Oct 23, 2025

Status: closed (inferred from source dates) · Engine; Engine And Engine Cooling:engine:hard Parts Internal/mechanical

On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GM’s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures resulting in knocking and growling noises from the engine’s bottom end and in some cases more severe consequences such as broken connecting rods leading to engine damage, or engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. On April 24, 2025, GM issued recall 25V-274 to address the concern with L87 engines produced between March 1, 2021, and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issues. GM’s recall remedy will be either an oil change to an oil with a different viscosity or engine replacement depending on the results of the remedy inspection procedure. To date, ODI has received 1,157 allegations of engine bearing failure. GM submitted 55,464 reports in total, with 29,752 unique VINs. ODI continues to receive allegations of L87 engine failures which fall outside of the scope of recall 25V-274. Based on GM’s recall, ODI will close this PE. NHTSA will continue to investigate complaints of engine failure outside the scope of recall 25V-274 as part ofEngineering Analysis (EA25007). To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Additional source detail variants (2)

Engine And Engine Cooling:engine:hard Parts Internal/mechanical

Engine

PE21010 · Air Bag Malfunction

Opened Apr 9, 2021 · Closed Aug 24, 2023

Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal; Air Bags:frontal:driver Side:inflator Module; Air Bags:srs Malfunction Warning Lamp/light

On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models), XT4 and MY 2021 Escalade, Suburban, Tahoe, Yukon SUVs.Technical Service Bulletin (TSB) 21-NA-005, issued in March 2021, addresses air bag MIL illumination with diagnostic trouble codes (DTCs) B0001-1B or B0012-0D. It cites rust particles in the connection terminal interface of the driver air bag inflator housing as the cause of the air bag MIL illumination. Illumination of the air bag MIL under these circumstances may result in a non-deployment of the frontal driver air bag during a frontal collision and increased risk of injury to the driver.GM stated a correlation exists between production delays due to the pandemic shutdown and premature corrosion initiation on the surface of the air bag inflator housing, which, in some cases, caused rust development during a seven (7) month period of vehicle production. In the rare instance when a rust particle dislodges from the driver air bag inflator housing and enters the air bag connector prior to assembly, an intermittent resistance spike at the air bag connector may result. The condition generates excessive resistance in the air bag electrical system when the steering wheel horn cover is manipulated or the steering wheel is turned. This excessive resistance is momentary. A crash commanding air bag deployment would need to occur exactly when the momentary excessive resistance occurs. Thus, there is a very low likelihood the hazard will present a risk during a crash of sufficient severity to warrant a commanded deployment. This failure mechanism occurs early in life and results in an air bag MIL illumination that corresponds to a DTC warning the driver that the vehicle requires service. The vehicle's air bag remains functional while the MIL is illuminated, and the DTC is present.Once the connection of the driver air bag module to the clockspring is made at the plant, or at the dealership for service, there is no longer an opportunity for rust migration into the connection point. The connector is sealed and has gold terminals, eliminating the expectation of fretting corrosion. All subject vehicles passed standard corrosion validation testing for extensive corrosion with no issue of air bag non-deployment.There is a low rate of occurrence: 1.41 incidents per thousand vehicles (IPTV) for all related occurrences, and 0.04 IPTV for occurrences with a mention of visible rust and/or corrosion on the air bag inflator housing. The average occurrence mileage for the subject vehicles is approximately 2,100. Every occurrence related to the alleged defect experienced an air bag MIL illumination and there are no verified allegations of air bag non-deployment within all data sources.To date, there have been no reported fires, crashes, injuries, or fatalities related to this issue. In view of the low rate, and the nature of early-life failure, the high detectability of failures, and low potential hazard to drivers, this Preliminary Evaluation (PE) is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.Review the ODI reports cited above at nhtsa.gov under the following identification numbers: 11537927, 11528888, 11525020, 11521401, 11506057, 11493107, 11486767, 11441525, 11433146, 11425658, 11423440, 11385267, 11376429, 11373466, 11366995.

Additional source detail variants (4)

Air Bags:frontal:driver Side:inflator Module

Air Bags:frontal

Air Bags

Air Bags:srs Malfunction Warning Lamp/light