Checking the Brake/Clutch Fluid Level

Check the fluid level in the reservoir periodically. The fluid level should be between the MAX and MIN marks on the side of the reservoir.
Before removing the reservoir cap and adding brake/clutch fluid*, thoroughly clean the area around the reservoir cap to prevent contamination of the brake/clutch fluid.
If the level is low, add fluid up to the MAX level. The level will drop as mileage accumulates. This is normal and related to brake pad and/or clutch disc (if equipped) wear. If the fluid level is too low, have the brake/clutch system checked by an authorized KIA dealer.
WARNING: Brake/Clutch Fluid Leakage
If the brake/clutch system requires frequent fluid addition, the vehicle must be inspected by an authorized Kia dealer.
CAUTION! Brake/Clutch Fluid
When replacing or adding brake fluid/clutch fluid, handle it with care. Do not allow it to contact your eyes. If brake fluid/clutch fluid gets into your eyes, immediately flush them with plenty of clean running water. Have your eyes examined by a doctor as soon as possible.
CAUTION
Do not allow brake fluid/clutch fluid to contact the vehicle body paint, as this will damage the paint. Never use brake fluid/clutch fluid that has been exposed to open air for a long time, as its quality cannot be guaranteed. Dispose of it properly. Do not add an improper fluid. Even a few drops of mineral-based oil, such as engine oil, in the brake/clutch system may damage brake system/clutch system components.
Test yourself
A quick Kia Sorento Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.