This Preliminary information communicates During inspection of the vehicle for an unrelated concern the...
Chevrolet technical service bulletin PIP5731 for 2021 Chevrolet Tahoe, 2021 Chevrolet Suburban and 2021 GMC Yukon and others.
- Bulletin number
- PIP5731
- Component
- Electrical system
- Summary
- This Preliminary information communicates During inspection of the vehicle for an unrelated concern the technician may notice that one or more of the following Cylinder Deactivation Performance DTC(s) P3498, P3499, P349A, P349B, P349C, P349D, P349E, or P349F may be set in history. and not requesting MIL. If any of these DTCs are requesting the MIL, please follow appropriate service information for diagnosis & repair. This condition may be caused by the ECM hardware disabling the cylinder deactivation outputs for an ignition cycle due to low voltage transient during crank & inadvertently causing one of the DTCs to set during an ignition cycle.
Owners of these vehicles have filed 112 complaints in the electrical category.
Vehicles covered
- Chevrolet Tahoe 2021 2021
- Chevrolet Suburban 2021 2021
- GMC Yukon 2021 2021
- Cadillac Escalade Na 2021 2021
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