System Description
Rear Cross-Traffic Collision Warning (RCCW) system

The Rear Cross-Traffic Collision Warning (RCCW) system uses radar sensors to monitor the approaching cross traffic from the left and right side of the vehicle when your vehicle is in reverse.
The blind spot detection range varies relative to the approaching vehicle speed.
WARNING
Limitations of the System
System Setting and OperationHyundai Elantra AD (2016-2020) Service Manual: Starter Relay Repair procedures
Inspection
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the fuse box cover.
3.
Remove the starter relay (A).
4.
Using an ohmmeter, check that there is continuity between each terminal.
TerminalContinuity30 - 87NO85 - 86YES
5.
Apply 12V ...
Hyundai Elantra AD (2016-2020) Service Manual: Heater Core Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater and blower assembly.
(Refer to Heater - "Heater Unit")
3.
Remove the heater core cover (A) after loosening the mounting screws.
4.
Pull out the heater core (A) from the heater unit.
5.
To intall, ...