See also:

Recommended Engine Coolant
When adding coolant, use only deionized water or soft water for your vehicle and never mix hard water in the coolant filled at the factory. An improper coolant mixture can result in serious malfun ...

Checking electric cooling fans
WARNING: The cooling fan is controlled by engine coolant temperature and may sometimes operate even when the engine is not running. Use extreme caution when working near the blades of the cooling ...

Risk of rollover
WARNING: o The 2WD Tucson is not designed for offroad use. The 4WD Tucson is designed primarily for use on paved roads. However, occasional use in off-highway conditions such as established unpav ...