General Motors LLC (GM) has determined that certain 2021-2024 GM vehicles equipped with a 6.2L V8 gas engines could experience engine failure problems. The issue is caused by manufacturing defects in the connecting rod and/or crankshaft engine components, which can lead to engine damage and failure.
Affected Vehicles
The following GM vehicles are affected by this recall:
- Cadillac Escalade (2021-2024)
- Cadillac Escalade ESV (2021-2024)
- Chevrolet Silverado 1500 (2021-2024)
- Chevrolet Suburban (2021-2024)
- Chevrolet Tahoe (2021-2024)
- GMC Sierra 1500 (2021-2024)
- GMC Yukon (2021-2024)
- GMC Yukon XL (2021-2024)
The Problem
GM’s investigation found that the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects, including:
- Rod-bearing damage from sediment on connecting rods and crankshaft-oil galleries
- Out of specification crankshaft dimensions and surface finish
These issues can cause or contribute to bearing damage, leading to loss of propulsion and engine failure.
Warning Signs
Drivers may be alerted to the condition prior to failure by:
- Unusual engine noises (knocking, banging, etc.)
- Illumination of the check engine light
- Engine-performance issues, including:
- Hesitation
- High RPMs
- Abnormal shifting
- Reduced propulsion
- No-start condition
Consequences of Engine Failure
If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. In fact, GM has identified 12 potentially related alleged crashes and 12 potentially related alleged injuries in the U.S.
Recall Repair
Dealers will inspect the engine and, as necessary, repair or replace it. For vehicles that pass inspection, dealers will:
- Add higher viscosity oil
- Install a new oil fill cap
- Replace the oil filter
- Update the owner’s manual
Recall Details
- GM’s recall number: N252494000
- NHTSA campaign number: 25V-274
- Owner notification letters are expected to be mailed on June 9, 2025
If you receive a notice saying your vehicle is affected, it is essential to take immediate action and contact your local dealer to schedule a repair. Remember to always monitor your vehicle’s performance and watch for any warning signs of engine failure.