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GMC TSB #N232428780
2021 GMC Savana
TSB Document:
Affected Component: POWER TRAIN
- Summary
- Customer Satisfaction Program - Certain vehicles may have a condition in which the transmission Control Valve Body Ball Check Valves can wear prematurely resulting in the possibility for them to become stuck or pass through the Control Valve Body Spacer Plate. The customer may not be able to shift into drive from park or reverse at the start of vehicle operation. Dealers are to replace the transmission Control Valve Body Spacer Plate package.
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