The Driver attention Alert system operates again, when the driver restarts driving.
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 ...
Hyundai Sonata LF 2014-2019 Service Manual: Drive Belt Tensioner Repair procedures
Removal and Installation
1.
Remove the drive belt.
(Refer to Timing System - "Dreve Belt")
2.
Remove the alternator.
(Refer to Engine Electrical System - "Alternator")
3.
Remove the alternator bracket (belt tunsioner) (A).
Tightening torque :
19.6 ~ 26.5 N.m (2.0 ~ 2.7 kgf.m, 14.5 ...