Kia Optima: Air Bag System ComponentsThe main components of your SRS are:

To indicate that your vehicle is equipped with driver’s and passenger’s side air bags, the air bag covers on the steering wheel and on the dashboard are marked “SRS AIR BAG.

Passenger’s side air bag
The Importance of Using Safety Belts
How the Driver’s Air Bags (SRS) WorkHeadlight High Beam Indicator
This indicator illuminates
when the headlights are on and in the high beam position or when the turn signal
lever is pulled into the Flash-to-Pass position. ...
Removal
1.
Remove the battery and the battery
tray. (Refer to "Charging system" in EE group.)
2.
Remove the under cover (A).
Tightening torque:7.8 ~
11 ...
Installing a Child Restraint System in the Rear Center Seat
To install a child restraint in the rear center seat, do the following:
1. Place the child-restraint in the desired position. Route the lap/ shoulder
belt through the restraint according to the s ...