TSB: Jeep 4WD Glitch

The transfer case shift motor in certain Jeep Wagoneer models can overheat or overuse, triggering warning codes and temporary 4WD disablement. This guide explains the causes, symptoms, and the necessary replacement procedure with the specified part number to ensure vehicle reliability.
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June 23, 2026
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Jeep 4WD Glitch

Owners of 2022-2024 Jeep Wagoneer/Grand Wagoneer vehicles equipped with Electric shift on demand transfer case, Electric full-time 4WD-mode only, 2-speed on demand transfer case or single speed on demand transfer case may comment on a MIL warning. C1444-98 (T-Case motor overuse-component or system over temperature) and/or C1477-4B (transfer case clutch over temperature) may be  set. A “4WD overheated temporarily unavailable” message may be displayed in the instrument cluster.

The cause: an issue with the transfer case shift motor.  Replace the motor with P/N 68679351AA.

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