Jeep Grand Cherokee 2013 — technical service bulletin
Bulletin 21-010-14 · NHTSA communication 10139622 · issued Apr 1, 2014
Technical service bulletin
communication type
Power Train
component
2013
model years
1
vehicle entries
Official 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.