If it is necessary to rock the vehicle to free it from snow, sand, or mud, first turn the steering wheel right and left to clear the area around your front wheels. Then, shift back and forth between R (Reverse) and a forward gear.
Try to avoid spinning the wheels, and do not race the engine.
To prevent transmission wear, wait until the wheels stop spinning before shifting gears. Release the accelerator pedal while shifting, and press lightly on the accelerator pedal while the transmission is in gear. Slowly spinning the wheels in forward and reverse directions causes a rocking motion that may free the vehicle.
WARNING
If the vehicle is stuck and excessive wheel spin occurs, the temperature in the tires can increase very quickly. If the tires become damaged, a tire blow out or tire explosion can occur. This condition is dangerous - you and others may be injured. Do not attempt this procedure if people or objects are anywhere near the vehicle.
If you attempt to free the vehicle, the vehicle can overheat quickly, possibly causing an engine compartment fire or other damage.Try to avoid spinning the wheels as much as possible to prevent overheating of either the tires or the engine. DO NOT allow the vehicle to spin the wheels above 35 mph (56 km/h).
Information
The ESC system must be turned OFF before rocking the vehicle.
NOTICE
If you are still stuck after rocking the vehicle a few times, have the vehicle pulled out by a tow vehicle to avoid engine overheating, possible damage to the transmission, and tire damage. See "Towing" in chapter 6.
Hyundai Elantra AD (2016-2020) Owners Manual: Limitations of the System
The Smart Cruise Control system may have limits to its ability to detect distance
to the vehicle ahead due to road and traffic conditions.
On curves
The Smart Cruise Control system may not detect a moving vehicle in your
lane, and then your vehicle could accelerate to the set speed. Also ...
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. Glass panel assembly2. Deflector3. Motor assembly4. Spring base assembly5. Plate rail assembly6. Guide rail assembly7. Drip link rail8. Seal tape9. Frame sub assembly10. Stopper11. Sunshade assembly12. Drip rail assembly
...