Kia Optima: Maintenance / Engine coolant

Kia Optima DL3 2019-2025 Owner's Manual / Maintenance / Engine coolant

The high-pressure cooling system has a reservoir filled with year round antifreeze coolant. The reservoir is filled at the factory.

Check the antifreeze protection and coolant level at least once a year: at the beginning of the winter season, and before traveling to a colder climate.

Checking the coolant level

Engine oil

Checking the engine oil level ■ THETA 2.4L - GDI 1. Be sure the vehicle is on level ground. 2. Start the engine and allow it to reach normal operating temperature. 3. Turn the engine off and w ...

Checking the coolant level

WARNING Removing radiator cap Never attempt to remove the radiator cap while the engine is operating or hot. Doing so might lead to cooling system and engine damage and could result in serious ...

Other information:

Kia Optima DL3 2019-2025 Owner's Manual: Automatic climate control system

■ Type A ■ Type B 1. Driver’s temperature control knob 2. AUTO (automatic control) button 3. Front windshield defroster button 4. Rear window defroster button 5. Air conditioning button 6. Air intake control button 7. OFF button 8. Fan speed control buttons 9. Mode selection butt ...

Kia Optima DL3 2019-2025 Owner's Manual: ESC operation off

ESC OFF state There are 2 types of ESC OFF states; Traction Control disabled and Traction & Stability Control disabled. If the ignition is turned off when ESC is off, ESC remains off. Upon restarting the engine, the ESC will automatically turn on again. • ESC off state 1 To cancel ...