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Service bulletin 21-010-14

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10139622
Published by NHTSA2018-06-11
Manufacturer's number21-010-14
Manufacturer's date2014-04-01
NHTSA componentPOWER TRAIN

NHTSA's summary

Transmission Torque Management Enhancements While in Reverse This bulletin involves replacing the transmission control module with a revised part. Customers may indicate that the engine does not have enough power to back a trailer up a steep grade. In addition, they may also indicate that the transmission shifts too early during acceleration while turning.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Vehicles listed
JEEP GRAND CHEROKEE2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
1012322024-11-07. Service bulletin. Plate - Planetary
21014142023-01-17. Service bulletin. Transmission Shift Enhancements
21010142023-01-17. Service bulletin. Transmission Torque Management Enhancements While in Reverse
18026142023-01-17. Service bulletin. Powertrain System Improvements/Enhancements
21035152023-01-09. Service bulletin. Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.
08015152023-01-09. Service bulletin. Flash: Gear Shift Indicator System Enhancements This bulletin involves reprogramming the Power Control Module (PCM) with new software. A small number of customers may experience improper gear shift point indications displayed in the EVIC if the paddle shift mode is selected on the steering wheel.
S17090000102023-01-09. Service bulletin. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
V512022-12-19. Service bulletin. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
08015152022-10-17. Service bulletin. Flash: Gear Shift Indicator System Enhancements This bulletin involves reprogramming the Power Control Module (PCM) with new software. A small number of customers may experience improper gear shift point indications displayed in the EVIC if the paddle shift mode is selected on the steering wheel.
08-015-152022-09-26. Service bulletin. Flash: Gear Shift Indicator System Enhancements This bulletin involves reprogramming the Power Control Module (PCM) with new software. A small number of customers may experience improper gear shift point indications displayed in the EVIC if the paddle shift mode is selected on the steering wheel.