10. Immediately drive approximately 4~6 miles (7~10 km or about 10 minutes) to evenly distribute the sealant in the tire.
Do not exceed a speed of 50 mph (80 km/h). If possible, do not fall below a speed of 12 mph (20 km/h).
While driving, if you experience any unusual vibration, ride disturbance or noise, reduce your speed and drive with caution until you can safely pull off of the side of the road.
Call for road side service or towing.
When you use the Tire Mobility Kit, the tire pressure sensors and wheel may be damaged by sealant, have it inspected at an authorized dealer.
Using the Tire Mobility Kit
Checking the tire inflation pressureHyundai Elantra AD (2016-2020) Service Manual: PTC Heater Description and Operation
Description
The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of heater core.
The PTC heater is an electric heater using a PTC element as
an auxiliary heating device that supplements deficiency of interior heat
source in highly effective diesel engine ...
Hyundai Elantra AD (2016-2020) Owners Manual: Detecting Sensor. Warning message
The rear radars are located inside the rear bumper for detecting the side and
rear areas. Always keep the rear bumper clean for proper operation of the system.
NOTICE
The system may not work properly when the bumper has been damaged, or
if the rear bumper has been replaced or repaired.
...