Overview
- NHTSA’s Office of Defects Investigation launched a Recall Query after receiving 36 owner reports of L87 engines failing after recall repairs were completed.
- The April 2025 recall covered about 597,630 vehicles in the U.S., with reporting citing roughly 721,000 globally across Chevrolet, GMC, and Cadillac trucks and SUVs.
- GM’s analysis tied failures to supplier manufacturing issues including rod‑bearing damage from sediment and out‑of‑spec crankshaft dimensions and surface finish.
- Dealers were instructed to inspect engine internals and repair or replace as needed, or use higher‑viscosity oil with a new filler cap and filter when no defects were found.
- No additional recall has been issued as investigators evaluate whether the prescribed inspections, repairs, and replacements have been effective.