Service Update
Chevrolet technical service bulletin N192287840 for 2020 Chevrolet Silverado 1500 and 2020 GMC Sierra 1500.
- Bulletin number
- N192287840
- Component
- Engine
- Summary
- Service Update - Certain vehicles equipped with a 2.7L turbo engine (RPO L3B), may have a condition where the engine wiring harness may have been wrapped and/or routed incorrectly, creating the potential for wear-through in several locations. If this occurred it could allow the engine harness to short to ground and/or be severed, which may lead to a check engine light, reduced engine power, no start condition or in rare cases a stall. Dealers are to inspect harness for correct tape wrapping and install engine harness sleeves.
Owners of these vehicles have filed 532 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 1500 2020 2020
- GMC Sierra 1500 2020 2020
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