By battery charger
Your vehicle has a maintenance-free, calcium-based battery.
WARNING
Always follow these instructions when recharging your vehicle’s battery to avoid the risk of SERIOUS INJURY or DEATH from explosions or acid burns:
By jump starting
After a jump start from a good battery, drive the vehicle for 20-30 minutes before it is shutoff. The vehicle may not restart if you shut it off before the battery had a chance to adequately recharge. See “Jump Starting” in chapter 6 for more information on jump starting procedures.
✽ NOTICE

An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) or regulation.
For best battery service
Reset featuresHyundai Tucson (LM) 2010-2015 Service Manual: Specifications
Specifications
ItemSpecificationsTransmission typeA6MF1Engine modelGasoline 2.0 GDITorque converter type3-element, 1-stage, 2-phase typeTorque converter sizeO236 mm (9.2913 in.)Oil pump systemParachoidFriction elementsClutch: 2EABrake: 3EAOWC : 1EAPlanetary gear 3EAGear ration1st4.1622nd2. ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Oil hydraulic Motor(Actuator) Description and Operation
Description
The 4WD ECM controls the Pump Motor Pump (Actuator) to
generating an oil pressure. The pressure engages a multiple disk clutch
to transfer torque to the rear wheels. The torque to the rear wheels
varies according to the pressure on the clutch. ...