C1477 on Jeep

Transfer case clutch over temperature (Jeep)

Severity not verified — if the car runs badly, have it inspected

Stellantis describes a 4WD Overheated Temporarily Unavailable message and a transfer case repair, but none of the sources say whether it is safe to keep driving, so no class is claimed.

Source: how we rate severity

This page covers only what differs on Jeep. For what C1477 means, the ranked causes and the test order, see the C1477 guide.

What's different on Jeep

Jeep

  • 2022–2024 · Wagoneer

    Supported by vehicle data

    Stellantis names C1477-4B in a shift motor replacement bulletin and a connector bulletin.

  • 2022–2024 · Grand Wagoneer

    Supported by vehicle data

    Covered by the same two Stellantis bulletins as the Wagoneer.

  • 2018–2019 · Cherokee

    Supported by vehicle data

    Owner complaints from 2018-2019 Cherokee quote C1477-4B alongside C1440-64 from the drivetrain control module. No bulletin for the Cherokee was found.

  • 21-048-24Status unverified

    Transfer case active shift motor replacement

    2022–2024grand-wagoneer, wagoneer · issued · NHTSA 11006985

    Replace the transfer case shift motor for C1444-98 and C1477-4B with a 4WD Overheated Temporarily Unavailable message.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 08-122-24Status unverified

    Transfer case shift motor wire harness connector not secured

    2023grand-wagoneer, wagoneer · issued · NHTSA 11001210

    Check the shift motor connector is secure when one or more listed codes, including C1477-4B, set with the MIL on.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Sources and review

  1. Stellantis bulletin 21-048-24: transfer case active shift motor replacement (C1444-98, C1477-4B) — Stellantis (FCA US) via NHTSA ,
  2. Stellantis bulletin 08-122-24: transfer case shift motor wire harness connector not secured — Stellantis (FCA US) via NHTSA ,
  3. NHTSA complaint ODI 11729828 (2018 Jeep Cherokee, C1477-4B) — NHTSA Office of Defects Investigation (consumer complaint)
Last reviewed
Written by
Saurabh K.
Editorial review
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Technician review
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