I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*1 : If TOP TIER Detergent Gasoline is not available, one bottle of additive is
recommended. Additives are available from your authorized HYUNDAI dealer along with
information on how to use them. Do not mix other additives.
*2 : The drive belt should be replaced when cracks occur or tension is reduced excessively.
*3 : Fuel filter & Fuel tank air filter are considered to be maintenance free but periodic inspection is recommended for this maintenance schedule depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of power, hard starting problem, etc. replace the fuel filter immediately regardless of maintenance schedule and consult an authorized HYUNDAI dealer for details.
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 ...
Hyundai Elantra AD (2016-2020) Owners Manual: Jump Starting
Jump starting can be dangerous if done incorrectly. Follow the jump starting
procedure in this section to avoid serious injury or damage to your vehicle. If
in doubt about how to properly jump start your vehicle, we strongly recommend that
you have a service technician or towing service do it ...