Volvo 2006 C70 - Manual (Page 23)

If your car has been involved in a rearend collision, the front seat backrests must be inspected by a trained and
qualified Volvo service technician, even if the seats appear to be undamaged. Certain components in the WHIPS
system may need to be replaced.
Do not attempt to service any component in the WHIPS system yourself.
pg. 24 Safety
Whiplash Protection System (WHIPS)
WARNING!
Boxes, suitcases, etc. wedged behind the front seats could impede the function of the WHIPS system.
pg. 25 Safety
Roll-over Protection system (ROPS)
Roll-over Protection system (ROPS)
The ROPS system consists of two roll bars located behind the rear seat head restraints, and a sensor that monitors the
roll or pitch angle of the car.
If the car rolls or pitches beyond a preset angle, the roll bars are automatically deployed (raised).