2009 Pontiac G8

large car / 4-door sedan

Crashworthiness

Rating overview
Head restraints & seats

Key

  • G
    Good
  • A
    Acceptable
  • M
    Marginal
  • P
    Poor
  • Superior
  • Advanced
  • Basic

Some ratings use a scale of Poor to Good. Others range from Basic to Superior.

Head restraints & seats

Seat type: Manual-power leather seats

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
Seat type Manual-power leather seats
Geometry
Backset (mm) 36
Distance below top of head (mm) 47
Seat design parameters
Pass/fail Fail
Max T1 acceleration (g) 9.7
Head contact time (ms) 85
Force rating 2
Neck forces
Max neck shear force (N) 157
Max neck tension (N) 696

About the head restraint & seat test
Currently, IIHS tests apply only to front seats.