Warning: Do not open the radiator cap while the engine is hot. The cooling system is pressurized and opening the plug may cause hot liquid to escape, which can cause severe burns. Wait until the engine has cooled down before opening the radiator cap.
The arrow of this pointer should be within the normal range. If the pointer arrow enters the zone while the engine is running "H" (Hot) dial, stop the vehicle immediately and turn off the engine.
Open the hood and check the coolant level in the expansion tank and the coolant pump drive belt. If you suspect a malfunction in the cooling system, have your vehicle checked by an authorized Hyundai dealer as soon as possible.