Jeep Grand Wagoneer 2022–2023 — technical service bulletin
Bulletin 2400723 · NHTSA communication 10242786 · issued Jul 7, 2023
Technical service bulletin
communication type
Visibility
component
2022–2023
model years
4
vehicle entries
Official summary
HVAC temperature door stuck (HVAC) Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ?B11CB-92 Front/Left Temperature Door 1 Control - Performance or Incorrect Operation. ? B11CC-00 Main/Left Temperature Door 1 Travel Too Small. Customers may also comment on the following: ? Driver side temperature cold when commanded to hot (or vice versa). This bulletin involves installing a three millimeter foam washer under the blend door cam gear.
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.