Jeep Grand Cherokee 2016 — technical service bulletin
Bulletin 1808716REVA · NHTSA communication 10224864 · issued Aug 24, 2016
Technical service bulletin
communication type
Electrical System
component
2016
model years
2
vehicle entries
Official summary
Engine Oil Viscosity Upgrade And Flash Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) and the Transmission Control Module (TCM). It also involves changing the engine oil with new 5W40 engine oil and applying a sticker to the engine oil filler cap. An addendum card will need to be added in the owner's manual. The following powertrain system improvements/enhancements are included in this software release: · Fan calibration. · Transmission calibration. · Revised oil change algorithm.
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.