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Home >> Hyundai >> 2024 >> Tucson Plug-In Hybrid Limited >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System (PHEV) >> Repair Procedures >> Adjustment >> Transaxle Control Module (TCM) Learning
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Transaxle Control Module (TCM) Learning

  1. Learning Overview and Purpose
    • It aims to correct the deviation between transaxle products to reduce learning time and secure initial driving safety.
    • When gear shift shock has occurred at the 1-2-3-4-5-6 positions, delete the previous learning values using diagnostic tool device and perform TCM learning again.
  2. Conditions that Require Learning
    • After replacing automatic transaxle
    • After replacing TCM
    • After performing TCM reprogramming
  3. TCM Learning Method
    1. Condition
      • ATF temperature: 40 - 100°C
    2. Learning with the vehicle stopped
      • While pressing and holding the brake (vehicle is stationery), set the throttle opening to 0% and repeat the following procedure four times.
      G16173392Courtesy of HYUNDAI MOTOR AMERICA
    3. Learning with the vehicle running
      • Maintain a consistent throttle opening at the D position and gradually shift from 1st gear position to 6th gear position one by one. Then, gradually shift from 6th gear position to 1st gear position one by one (brake: on, throttle opening: 0%).
      • Throttle opening (for shifting to upper gear): 10 - 50% (less than 5% of throttle opening (APS) change)
      • Repeat the above procedure four times.