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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules (Service Information) (2 Of 2) >> Module, Transmission Control (TCM) >> Module Programming >> TCM Programming
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TCM Programming

NOTE: A new Transmission Control Module (TCM) is supplied with generic software. When replacing a TCM, it must be programmed with vehicle specific software.
NOTE: Failure to properly program the TCM will cause DTC(s) to be set.
  1. The following conditions must be met during the TCM programming procedure:
    • Battery must be maintained between 10 and 16 volts. Connect a battery charger if necessary.
    • Ambient temperature must be between 0°C (32°F) and 60°C (140°F).
    • Gear selector must be in PARK.
  2. With the scan tool and Dealer Connect, download the appropriate TCM flash file to the scan tool.
  3. Turn the ignition ON.
  4. Following the menu on the scan tool, program the TCM.
  5. Perform the TCM ADAPTATION procedure. Refer to TCM ADAPTATION - 850RE / 8HP75 .
  6. Perform the TRANSMISSION VERIFICATION TEST. Refer to 8HP50/850RE, TRANSMISSION VERIFICATION TEST or 8P75PH, TRANSMISSION VERIFICATION TEST .
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