Jeep Grand Cherokee 2018–2020 — technical service bulletin
Bulletin 08-016-20 · NHTSA communication 10173345 · issued Feb 5, 2020
Technical service bulletin
communication type
Seats
component
2018–2020
model years
3
vehicle entries
Official summary
Body Control Module (BCM) Reconfigure for Enabling the Auto-On Comfort Settings This bulletin involves reconfiguring the BCM and possibly a radio reset, to enable the auto-on comfort settings. Customers may comment on one or more of the following:If below 4 °C (40 °F), the heated seats or heated steering wheel turn on by themselves. If above 26 °C (80 °F), the vented seats turn on by themselves. Cannot turn off the auto-on comfort feature. With the symptom/condition listed above, there?s no setting in the radio to turn the auto-on comfort feature off.
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.