• The hydraulic system consists of a valve body, an oil filter and an oil pump.
• The oil pump is powered by the engine. ATF passes through the oil filter and gets distributed along the oil channels.
• The oil becomes highly pressurized as it exits the oil pump and passes through the line pressure valve before being fed to the clutch & brake control valve, clutch, and brakes.
• TCM controls the hydraulic pressure using solenoid valves and controls clutch and brake operations.

Hydraulic System
Electronic Oil Pump (EOP)Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Washer Fluid
Checking the Washer Fluid Level
Check the fluid level in the washer fluid
reservoir and add fluid if necessary.
Plain water can be used during summer
months if washer fluid is not available.
However, use washer fluid with
antifreeze in cold climates to prevent
freezing.
WARNING
To p ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Downhill Brake Control Swtich
- Description
The DBC function is the acronym word of Downhill Brake Control
function. When a vehicle goes down the hill, just pushing the DBC switch
enables the car to keep its vehicle's speed at a constant value without
operating the brake pedal. The DBC function is operat]ed when the
v ...