2006 Cadillac STS

large luxury car / 4-door sedan

2006 Cadillac STS 4-door sedan
2005 Cadillac STS shown


Rating overview
Moderate overlap front: original test
Head restraints & seats


  • G
  • A
  • M
  • P
  • Superior
  • Advanced
  • Basic

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

Moderate overlap front: original test

Rating applies to 2005-11 models

Tested vehicle: 2005 Cadillac STS 4-door

The Cadillac STS was introduced in the 2005 model year as a replacement for the Seville.

Overall evaluation
Structure and safety cage
Driver injury measures
Leg/foot, left
Leg/foot, right
Driver restraints and dummy kinematics

Action shot taken during the frontal offset crash test.

The dummy's position in relation to the steering wheel and instrument panel after the crash test indicates that the driver's survival space was maintained very well.

Smeared greasepaint indicates where the dummy’s head hit the B-pillar, roof rail, grab handle, and head restraint. Head accelerations from these hits were low.

Intrusion into the driver's space was minimal, and all leg and foot injury measures were low.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CEF0519
Footwell intrusion
Footrest (cm) 4
Left (cm) 6
Center (cm) 8
Right (cm) 7
Brake pedal (cm) 3
Instrument panel rearward movement
Left (cm) 0
Right (cm) 1
Steering column movement
Upward (cm) 3
Rearward (cm) -2
A-pillar rearward movement (cm) 0

Driver injury measures

Test ID CEF0519
HIC-15 451
Peak gs at hard contact 79
Tension (kN) 1.1
Extension bending moment (Nm) 19
Maximum Nij 0.25
Chest maximum compression (mm) 24
Femur force - left (kN) 1.7
Femur force - right (kN) 1.8
Knee displacement - left (mm) 0
Knee displacement - right (mm) 0
Maximum tibia index - left 0.30
Maximum tibia index - right 0.43
Tibia axial force - left (kN) 2.3
Tibia axial force - right (kN) 3.0
Foot acceleration (g)
Left 51
Right 50

How the moderate overlap front test is conducted

Head restraints & seats

Seat type: Seats without adjustable lumbar

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
Seat type Seats without adjustable lumbar
Backset (mm) 85
Distance below top of head (mm) 60
Seat design parameters
Pass/fail Fail
Max T1 acceleration (g) 17.3
Head contact time (ms) 92
Force rating 3
Neck forces
Max neck shear force (N) 330
Max neck tension (N) 1,004

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

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