6L80 6L90 8L90 10L80 10L90 10L000 Equipped Vehicles With A Harsh Shift Shudder Surge Stall Or High Transmission Fluid Temperature – 2021-2023 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10222668 Manufacturer Communication Number: 22-NA-182 Summary This informational bulletin advises the tech to check if the trans cooler lines are twisted which may cause the customers concern.   Condition Some customers may comment on one or more of the following before or after the transmission has been overhauled: Harsh shifting Shudder Surging Stalling Transmission … Read more

Slip Or Shudder During A Launch In First Second Third Or Fourth Gears Delayed Engagement Into Drive Clunk Or Bump During The 1-2 Shift – 2013-2021 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

cNHTSA ID Number: 10226384 Manufacturer Communication Number: PIP5175E Summary This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump … Read more

DTC P0741 Torque Converter Clutch Stuck Off – 2015 Chevrolet & GMC

2015 Chevrolet Silverado 3500

NHTSA ID Number: 10113709 Manufacturer Communication Number: PI1393B   Summary This preliminary informational bulletin provides diagnostic tips that may be helpful in correcting a customer concern of a Malfunction Indicator Lamp (MIL) illuminated. Technicians may find DTC P0741 Torque Converter Clutch Stuck Off set .     Condition/Concern Malfunction Indicator Lamp (MIL) on. Technicians may find DTC … Read more