All tire pressures (including the spare) should be checked when the tires are cold. "Cold tires" means the vehicle has not been driven for at least three hours or driven less than one mile (1.6 km).
Warm tires normally exceed recommended cold tire pressures by 4 to 6 psi (28 to 41 kPa). Do not release air from warm tires to adjust the pressure or the tires will be under-inflated. For recommended inflation pressure, refer to "Tire and Wheels" in chapter 8.
WARNING
Recommended pressures must be maintained for the best ride, vehicle handling, and minimum tire wear.
Over-inflation or under-inflation can reduce tire life, adversely affect vehicle handling, and lead to sudden tire failure that could result in loss of vehicle control resulting in an accident.
Severe under-inflation can lead to severe heat build-up, causing blowouts, tread separation and other tire failures that can result in the loss of vehicle control resulting in an accident. This risk is much higher on hot days and when driving for long periods at high speeds.
CAUTION
Hyundai Elantra AD (2016-2020) Service Manual: Seat Heater Switch Schematic Diagrams
Circuit Diagram
[Front Seat Heater Switch (Driver)]
[Front Seat Heater Switch (Passenger)]
[Rear Seat] ...
Hyundai Elantra AD (2016-2020) Service Manual: Input Speed Sensor Repair procedures
Inspection
1.
Using the GDS, check the input/output speed sensor waveforms.
A.
Turn OFF the ignition switch.
B.
Connect the GDS to the Data Link Connector(DLC) on the lower crash pad.
C.
Ignition "ON" & Engine "ON".
D.
Check the input/output speed sensor waveforms at high spe ...