Two people (including children) should never attempt to use a single seat belt. This could increase the severity of injuries in case of an accident.
Injured person
Do not lie downKia Cee'd JD Service Manual: Rear Pillar Trim Components and components location
Component Location
[5Door]
1. Rear pillar trim
[3Door]
1. Rear pillar trim
...
Kia Cee'd JD Service Manual: Rear Seat Back Cover Components and components location
Component Location
1. Rear seat back cover [LH]
2. Rear seat back cover [RH]
...