2023 Chevrolet Suburban 1500

The defect

General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."

The risk

Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.

The remedy

The Electronic Brake Control Module (eBCM) software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed October 25, 2024. Owners can contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N242447990.

General Motors, LLC · up to 449,671 vehicles across all model years covered · fixed by software update

Closed preliminary evaluation · opened January 16, 2025 · closed October 23, 2025 · led to recall 25V274

the engine, the engine and its cooling

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.

1/10/25 Complete braking system failure, could no brake, could not use emergency brake. Almost crashed into my garage -Chevy Service Dept. replaced Electronic Braking Control Module 1/24/25 Complete braking system failure, could no brake, could not use emergency brake -Chevy Service Dept. replaced battery 2/1/25 Car shaking terribly, my kids screaming we were going to “explode” , car smoking, white smoke coming from exhaust -Chevy Service Dept. states there is an engine issue, they will need to break down and replace parts / repair

NHTSA complaint 11641893. Filed by an owner and not verified by NHTSA or by us.

Wife is RN at a trauma hospital going to work in the morning on a busy highway. While in front of Hospital truck started to indicate to hit starter button. Truck was already running! Wife stopped at red light. Truck stopped running would not start. Stuck in middle of morning rush hour traffic had to have truck towed to dealership. At the dealership they indicated they found metal parts in the oil pan. They indicated a further look into the engine indicated it was beyond repair and had to be replaced. Truck only had 42k miles on it. They stated they had another one same situation in the shop as well and that it would take several weeks to repair. I have learned that this is a major problem …

NHTSA complaint 11641302, quoted in part. Filed by an owner and not verified by NHTSA or by us.

I was driving the vehicle at approximately 45 mph when the vehicle suddenly had no engine power. There were no warning signals or symptoms of an issue that would indicate there was a problem, but the dashboard told me the vehicle needed a restart. I was able to pull the vehicle out of traffic at a cross street and coast to a stop in a parking lot. Had I not been where I was at the moment when the engine failed, or had there been oncoming traffic that would have required me to stop coasting, I would not have been able to pull safely out of traffic. The vehicle was towed to the dealer where it was purchased. They told me the next day that is was an internal engine failure.

NHTSA complaint 11640343. Filed by an owner and not verified by NHTSA or by us.

On April 7th 2024 we were traveling on vacation 2 1/2 hours from home and our vehicle started making a ticking noise and traction control, engine light, service emissions, and front collision warning all came on. It was idling very rough. We had to stop for the night with our kids and take it to the closest dealer the next morning. They diagnosed the car and confirmed that the lifters needed repair. We had to leave our vehicle and get a rental to make it back home. The dealer made repairs and sent vehicle back to us. Fast forward to 1/15/25 I was on the way to work and the same thing started happening. I then had to tow the vehicle to the dealership and they have diagnosed it with the same …

NHTSA complaint 11637730, quoted in part. Filed by an owner and not verified by NHTSA or by us.

Engine died without warning on interstate. Vehicle was towed to Chevrolet dealer where defective rod bearings were found. Engine was replaced by dealer.

NHTSA complaint 11637479. Filed by an owner and not verified by NHTSA or by us.

While driving my family home from our christmas vacation on the Garden State Parkway (NJ) the engine shut off and would not restart. This happened on a stretch of the highway with no shoulder while traveling at 65mph. Thankfully we were able to coast far enough to a section of highway with a shoulder. This incident left my [XXX] , [XXX] , my wife and I and our dog stranded in the freezing cold 100 miles from home. After a stressful next few days the Chevrolet dealership diagnosed it as blown bearings in the motor. It has now been over three weeks and no word from GM when a new motor will be available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint 11636860. Filed by an owner and not verified by NHTSA or by us.