The warning light illuminates if the temperature of the engine coolant is above 248±5.4°F (120±3°C).
Do not continue driving with an overheated engine.
✽ NOTICE
If the engine coolant temperature warning light illuminates, it indicates overheating that may damage the engine.
Hyundai Tucson (LM) 2010-2015 Service Manual: Buzzer Repair procedures
Inspection
Test the buzzer by connecting battery voltage to the 1 terminal and ground the 2 terminal.
The buzzer should make a sound. If the buzzer fails to make a sound, replace it.Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Troubleshooting
Troubleshooting
Problem Symptoms Table
Use the table below to help you find the cause of the
problem. The numbers indicate the priority of the like cause of the
problem. Check each part in order.
If necessary, replace these parts.
SymptomSuspect AreaReferenceLower pedal or spongy pedal ...