Hyundai Sonata: Driving your vehicle / Transmission

Engine Start/Stop Button

Whenever the front door is opened, the Engine Start/Stop button will illuminate and will go off 30 seconds after the door is closed. WARNING To reduce risk of serious injury or death, NEVER allow ch ...

Automatic Transmission

Automatic transmission operation The automatic transmission has 6 or 8 forward speeds and one reverse speed. The individual speeds are selected automatically in the D (Drive) position. WARNING To red ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Intake Air Temperature Sensor (IATS) Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance between the IATS terminals 3 and 4. 4. Check that the resistance is within the specification. Specification: Refer to “Specification” ...

Hyundai Sonata LF 2014-2019 Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Pull out the relay from the engine compartment relay block. Power Relay (Type A) Check for continuity between the terminals. 1) Start relay 2) Deicer relay 3) Head lamp (high) relay 4) Blower relay 5) Powe ...