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 TROUBLESHOOTINGP0601-00-INTERNAL CONTROL MODULE MEMORY CHECKSUM ERRORDEFAULT ACTION
2023 Jeep Grand Cherokee L Laredo, AWD
Default Action
2023 Jeep Grand Cherokee L Laredo, AWDSECTION Default Action
- Malfunction Indicator Lamp (MIL) is illuminated on the first trip that the diagnostic fails.
- Service Transmission message will be displayed.
- The Transmission will be placed into fixed Sixth Gear Limp-in mode.
- Shut off engine to engage PARK if there is a lever fault.
- REVERSE gear will not be available.
- Car wash NEUTRAL hold function will be disabled.
- Transmission adaptations will be disabled.
- Any driver requests that are not yet honored will be cleared.
- Special shifting modes (Manual Mode, Sport Mode, Tow Mode) will be disabled.
- Remote Start feature, if equipped, will be disabled.
- Electric Stop/Start function, if equipped, will be disabled.
- Cold start neutral function will be inhibited.
- Neutral idle control function will be inhibited.
- Request sent to shut off engine.
RENDER: 1.0x
NO RELATED
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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.