The recall targets vehicles with the 6.2-liter L87 V-8 engine, manufactured from 2021 to 2024. Specific models include:
- Chevrolet Silverado 1500
- Chevrolet Tahoe
- Chevrolet Suburban
- Cadillac Escalade (and ESV)
- GMC Sierra 1500
- GMC Yukon (including the Yukon XL)
GM has identified two critical manufacturing defects:
- Contamination Issue: Sediment can infiltrate connecting rods and crankshaft oil galleries, damaging rod bearings.
- Crankshaft Defects: Out-of-specifications crankshaft dimensions can lead to severe engine failure.
Owners can identify potential issues through:
- Unusual loud noises from the engine
- Check engine light activation
- Decreased engine performance
In the worst-case scenarios, the vehicle may become inoperable.
To address these problems, dealerships will:
1. Inspect engines for damage.
2. Repair damaged parts or replace the V-8 engine if needed.
3. Use higher viscosity oil where applicable, updating oil cap and manual instructions.
GM assures reimbursement for any previous repairs related to these issues.
Despite early awareness, GM closed several investigations without action until prompted by the NHTSA. Subsequent reviews revealed:
- Production issues between March 1, 2021, and May 31, 2024.
- 28,102 complaints, with numerous reporting propulsion loss and some indicating fires, crashes, and injuries.
To ensure your truck or SUV is not at risk, visit:
- NHTSA's website with your VIN or license plate
- GM's recall website with your VIN
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Summary: GM faces a significant recall involving nearly 600,000 vehicles due to flaws in the 6.2L V-8 engine, posing risks like engine failure and fires. Immediate action is advised for affected owners.
