U1428 on Jeep

On Jeep, U1428 is set when the transmission control module receives an engine torque value from the engine computer that it judges inaccurate or stuck

This page covers only what differs on Jeep. For what U1428 means, the ranked causes and the test order, see the U1428 guide.

What's different on Jeep

Jeep

  • 2018 · Compass

    Supported by vehicle data

    FCA PCM-software bulletin summaries list U1428 with P1DD2 on 2018 Compass automatics; owners report lock-up feel, stalls and limp-home.

  • 2018–2019 · Cherokee

    Supported by vehicle data

    Owners report U1428 with P0340 or P2172, lurching, power loss and a stall in traffic; one mechanic readout gives the meaning.

  • 2018 · Renegade

    Supported by vehicle data

    One owner reports power loss at highway speed with U1428; no repair was recorded.

  • 18-091-19Status unverified

    Flash: Powertrain Control Module (PCM) updates, U1428 and P1DD2

    2018compass · issued · NHTSA 10169224

    PCM reprogramming for a lit MIL with P1DD2 in the TCM and U1428 on automatic-transmission cars. Only the NHTSA summary was read.

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

  • 18-078-20Status unverified

    Flash: Powertrain Control Module (PCM) updates, U1428 and P1DD2

    2018compass · issued · NHTSA 10181598

    PCM reprogramming for the same code set. Only the NHTSA summary was read.

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

  • 1809119Status unverified

    Flash: Powertrain Control Module (PCM) updates, U1428 and P1DD2

    2018compass · issued · NHTSA 10220076

    PCM reprogramming for the same code set. Only the NHTSA summary was read.

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

  • 1808222Status unverified

    Flash: Powertrain Control Module (PCM) updates, U1428 and P1DD2

    2018compass · issued · NHTSA 10228037

    PCM reprogramming for the same code set. Only the NHTSA summary was read.

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

Sources and review

  1. FCA 18-091-19 (NHTSA 10169224): Powertrain Control Module software updates, 2018 Jeep Compass — NHTSA (manufacturer communication) ,
  2. FCA 18-078-20 (NHTSA 10181598): Powertrain Control Module software updates, 2018 Jeep Compass — NHTSA (manufacturer communication) ,
  3. FCA 1809119 (NHTSA 10220076): Powertrain Control Module software updates, 2018 Jeep Compass — NHTSA (manufacturer communication) ,
  4. FCA 1808222 (NHTSA 10228037): Powertrain Control Module software updates, 2018 Jeep Compass — NHTSA (manufacturer communication) ,
  5. NHTSA complaint ODI 11243310: 2018 Jeep Compass, transmission lock-up with U1428 and P1DD2 — NHTSA (owner complaint)
  6. NHTSA complaint ODI 11617731: 2018 Jeep Compass, stalls while driving with P1DD2 and U1428 — NHTSA (owner complaint)
  7. NHTSA complaint ODI 11762680: 2019 Jeep Cherokee, U1428 readout with P0340 — NHTSA (owner complaint)
  8. NHTSA complaint ODI 11424210: 2018 Jeep Cherokee, shut off with P2172 and U1428 — NHTSA (owner complaint)
  9. NHTSA complaint ODI 11638410: 2018 Jeep Renegade, loss of power on the highway with U1428 — NHTSA (owner complaint)
Last reviewed
Written by
Saurabh K.
Editorial review
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Technician review
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This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error

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