The instrument panel vent air flow can be directed up/down or left/right using the vent adjustment lever.
The air flow can also be closed using the vent adjustment lever. To close the instrument panel vents, slide the vent adjustment lever to the LEFT until it clicks.
Hyundai Elantra AD (2016-2020) Service Manual: Door Scuff Trim Components and Components Location
Component Location
1. Front door scuff trim2. Rear door scuff trim
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Hyundai Elantra AD (2016-2020) Owners Manual: Tire Replacement
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
b ...