The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals.
R : Replace
I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
Hyundai Sonata LF 2014-2019 Service Manual: ETC (Electronic Throttle Control) System Description and Operation
Description
The Electronic Throttle Control (ETC) System consists of a
throttle body with an integrated control motor and throttle position
sensor (TPS). Instead of the traditional throttle cable, an Accelerator
Position Sensor (APS) is used to receive driver input. The ECM uses the
APS s ...
Hyundai Sonata LF 2014-2019 Owners Manual: To decrease the Smart Cruise Control set speed
Follow either of these procedures:
Push the toggle switch down (SET-), and hold it. Your vehicle set speed
will decrease by 5 mph (10 km/h). Release the toggle switch at the speed you
want.
Push the toggle switch down (SET-), and release it immediately. The cruising
speed will decrease by ...