Hyundai Tucson: Battery

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Electrical System / Charging System / Battery


  1. Turn the ignition switch OFF and disconnect the battery (-) terminal (A).

Tightening torque : 7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 Ib-ft)

  1. Disconnect the battery (+) terminal (A).

Tightening torque : 7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 Ib-ft)

  1. Remove the battery mouting bracket (A).

Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 Ib-ft)

  1. Remove the battery (A).

Battery Tray

Battery Tray

  1. Remove the battery.
  2. Remove the air cleaner assembly.

(Refer to Engine Mechanical System - "Air Cleaner")

  1. Remove the engine control module (ECM).

(Refer to Engine Control / Fuel System - "Engine Control Module (ECM)")

  1. Remove the battery tray (A).

Tightening torque : 7.8 - 10.8 N.m (0.8 - 1.1 kgf.m, 5.8 - 8.0 Ib-ft)



  1. Install in the reverse order of removal.


When installing the battery, fix the mounting bracket on the tray correctly.


  • After disconnecting then reconnecting the battery negative cable, reset some parts that require the reset procedures.

    (Refer to Body Electrical System - "General Information")


  • ISG (Idle stop & go) system equipped vehicle always use the AGM battery only. If flooded battery has installed, this can potentially lead to engine electrical trouble or ISG system error.
  • Replace same capacity of the AGM battery.


  • Do not open the AGM battery.
  • The AGM battery must not be opened under any circumstances as the introduction of oxygen from the air will cause the battery to lose its chemical equilibrium and rendered non-operational.


     Battery Condition - Vehicle parasitic current inspection

    Inspection Check the battery for damage or deformation. If severe damage, deformation or leakage is found, replace the battery. Using the Ammeter Turn the all electric devices OFF, and then turn the ignition switch OFF. Close all doors exc

     Battery Test Procedure

    Connect the tester to the battery. Red clamp to battery positive (+) terminal. Black clamp to battery negative (-) terminal WARNING Connect clamps securely. If "CHECK CONNECTION" message is displayed on the screen, reco

     Charge and Retest method after battery charge

    Battery charge Set battery charger to 'Auto Mode' (The Mode that charging current drops as the battery charges.) and charge battery until charging current down close to zero or the charger alerts you with an alarm when charge is complete. (


     Exhaust Gas Temperature Sensor (EGTS)

    Description Exhaust Gas Temperature Sensor (EGTS) is installed on Gasoline Particulate Filter (GPF) senses the temperature of exhaust gas flowing into. When pre-determined engine condition is set, ECM burns soot gathered in GPF with exhaust ga

     Cylinder Block - Components

    Cylinder block Water jacket insert (Exhaust) Water jacket insert (Intake) Lower crankcase Oil jet O-ring Piston ring (No.1 ring Piston ring (No.2 ring) Piston ring(Oil ring) Piston Piston snap ring