1. Start the engine.
2. Set the mode to the desired position. To improve the effectiveness of heating and cooling : - Heating: - Cooling:
3. Set the temperature control to the desired position.
4. Set the air intake control to the outside (fresh) air or recirculated air position.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system on.
Hyundai Elantra AD (2016-2020) Service Manual: Electric Thermostat (ECT) Troubleshooting
Troubleshooting
SymptomsPossible CausesRemedyCoolant leakage
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From the thermostat gasket
Check the mounting nuts
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Check the torque of the mounting nuts
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Retighten the bolts and check leakage again.
Check the gasket for damage
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Check gasket or seal for damage
...
Hyundai Elantra AD (2016-2020) Service Manual: Radiator Grill Repair procedures
Replacement
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Put on gloves to prevent hand injuries.
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When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
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Use a plastic panel removal tool to remove int ...