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GMC TSB #N182193520
2019 GMC Sierra 1500
TSB Document:
Affected Component: STRUCTURE
- Summary
- Service Update. On a small number of the vehicles identified above, the electrical connector to the transmission valve body solenoids may not be fully seated. DTC P2718 or P2720 may set resulting in the Check Engine indicator illuminating, and the transmission reverting to a ?limp home? mode providing limited forward gear selection. Dealers are to access the transmission valve body solenoids and fully seat the connectors.
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