Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2023GRAND CHEROKEE L LAREDO, AWDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANS8HP50/850RE AUTOMATIC TRANSMISSION - DTCS P0219-00 TO P07B4-00DTC TROUBLESHOOTINGP061B-00-INTERNAL CONTROL MODULE TORQUE CALCULATION PERFORMANCEDEFAULT ACTION
2023 Jeep Grand Cherokee L Laredo, AWD
Default Action
2023 Jeep Grand Cherokee L Laredo, AWDSECTION Default Action
Conditions One - Four
- Malfunction Indicator Lamp (MIL) is illuminated on the first trip that the diagnostic fails.
- The TCM will not request any positive torque interventions from the Powertrain Control Module (PCM) via Controller Area Network (CAN).
Conditions Five and Six
- Malfunction Indicator Lamp (MIL) is illuminated on the first trip that the diagnostic fails.
- The Transmission will be placed into Third gear Limp-in mode.
- The TCM will not request any positive torque interventions from the Powertrain Control Module (PCM) via Controller Area Network (CAN).
- The TCM will not request any negative torque interventions from the Powertrain Control Module (PCM) via Controller Area Network (CAN).
- Service Transmission message will be displayed.
- Transmission adaptations will be disabled.
- Special shifting modes (Manual Mode, Sport Mode, Tow Mode) will be disabled.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.