DTC P17F4 stored in TCM if you confirm

Bulletin number

NTB23-048

Component

Power train

Summary

DTC P17F4 STORED IN TCM IF YOU CONFIRM The customer reports transmission vibration when accelerating, HINT: Vibration occurs during quick reacceleration after braking, during a 2-1 downshift of the auxiliary gearbox. AND DTC P17F4 for “AUXILIARY GEARBOX (CL JUDDER)” is stored in the TCM.  If DTCs other than P17F4 are stored, this bulletin does not apply. Refer to the ESM for further diagnostic information. ACTION Refer to the Repair Overview on page 2 to determine if this bulletin applies.

Owners of these vehicles have filed 95 complaints in the transmission category.