The LATCH system holds a child restraint during driving and in an accident. This system is designed to make installation of the child restraint easier and reduce the possibility of improperly installing your child restraint. The LATCH system uses anchors in the vehicle and attachments on the child restraint. The LATCH system eliminates the need to use seat belts to secure the child restraint to the rear seats.
Lower anchors are metal bars built into the vehicle. There are two lower anchors for each LATCH seating position that will accommodate a child restraint with lower attachments.
To use the LATCH system in your vehicle, you must have a child restraint with LATCH attachments.
The child seat manufacturer will provide you with instructions on how to use the child seat with its attachments for the LATCH lower anchors.

LATCH anchors have been provided in the left and right outboard rear seating positions.
Their locations are shown in the illustration. There are no LATCH anchors provided for the center rear seating position.
WARNING
Do not attempt to install a child restraint system using LATCH anchors in the rear center seating position. There are no LATCH anchors provided for this seat. Using the outboard seat anchors can damage the anchors which may break or fail in a collision resulting in serious injury or death.

The lower anchor position indicator symbols are located on the left and right rear seat backs to identify the position of the lower anchors in your vehicle (see arrows in illustration).
The LATCH anchors are located between the seatback and the seat cushion of the rear seat left and right outboard seating positions.
Installing a Child Restraint System (CRS)
Securing a child restraint with the LATCH anchors systemHyundai Elantra AD (2016-2020) Service Manual: Blind Spot Detection Switch Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Remove the lower crash pad switch assembly (A) after disengaging the mounting clip.
4.
Remove the rheostat switch connector (A).
5.
Check ...
Hyundai Elantra AD (2016-2020) Owners Manual: Installing a Child Restraint System (CRS)
WARNING
Before installing your child restraint system always:
Read and follow the instructions provided by the manufacturer of the
child restraint.
Read and follow the instructions regarding child restraint systems in
this manual.
Failure to follow all warnings and instructions could ...