If the tire is worn evenly, a tread wear indicator will appear as a solid band across the tread. This shows there is less than 2/32 inch (1.6 mm) of tread left on the tire. Replace the tire when this happens.
Do not wait for the tread surface to become level with the tread wear indicators before replacing the tire.
WARNING
To reduce the risk of DEATH or SERIOUS INJURY:
Compact spare tire replacement
A compact spare tire has a shorter tread life than a regular size tire. Replace it when you can see the tread wear indicator bars on the tire. The replacement compact spare tire should be the same size and design tire as the one provided with your new vehicle and should be mounted on the same compact spare tire wheel. The compact spare tire is not designed to be mounted on a regular size wheel, and the compact spare tire wheel is not designed for mounting a regular size tire.
WARNING
The original tire should be repaired or replaced as soon as possible to avoid failure of the spare and loss of vehicle control resulting in an accident.The compact spare tire is for emergency use only. Do not operate your vehicle over 50 mph (80 km/h) when using the compact spare tire.
Hyundai Elantra AD (2016-2020) Service Manual: Auto Defoging Actuator Components and Components Location
Components Location
1. Auto logging actuator
...
Hyundai Elantra AD (2016-2020) Service Manual: Drive Belt Tensioner Repair procedures
Removal and Installation
1.
Disconnect the drive belt.
(Refer to Timing System - "Drive Belt")
2.
Remove the drive belt tensioner (A).
Tightening torque :
center bolt : 29.4 ~ 41.2 N.m (3.0 ~ 4.2 kgf.m, 21.7 ~ 30.4 lb-ft)
fxing bolt : 39.2 ~ 49.0 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2 lb-ft ...