Jeep Grand Wagoneer 2022 — technical service bulletin
Bulletin 2300622 · NHTSA communication 10229120 · issued Mar 3, 2022
Technical service bulletin
communication type
Seats
component
2022
model years
1
vehicle entries
Official summary
Heated Seat Calibration Update This bulletin involves updating the HVAC module with the latest software for vehiclesbuilt before January 05 2022, checking the operation of the front heated seats and repair as required. Customers may comment on the following: Front row heated seats (driver and/or passenger) will not stay on and shutsitself off in less then 15 minutes while occupied.Customerswill not experience a Malfunction Indicator Lamp (MIL) illumination or Diagnostic Trouble Codes (DTCs) for this symptom/condition.
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.