Applies to 2006-13 models
|Structure and safety cage|
|Restraints and dummy kinematics|
Important: Frontal crash test ratings should be compared only among vehicles of similar weight.
The Lexus IS was redesigned for the 2006 model year. There are two models, the IS 250 and IS 350, depending on engine size.
The driver's space was seriously compromised by intruding structure. Footwell intrusion measured as much as 42 cm at the footrest, and the instrument panel intruded as much as 22 cm. Both dummy feet were trapped by the footwell intrusion, and the brake pedal had to be cut off to free the right foot.
Measures from the dummy indicate that injuries to the left lower leg would be likely in a crash of this severity. Injuries to the left foot and right lower leg would be possible.
Restraints and dummy kinematics
The dummy’s head remained in contact with the frontal airbag, but the head was still vulnerable to contact with forward side structure because the steering column moved 13 cm to the right as the dummy moved to the left. The driver's seat tipped forward and toward the B-pillar. Furthermore, at forwardmost excursion the head had moved outside the open side window, partially due to the lack of a side curtain airbag deployment and leaving the head vulnerable to contact with side structure and outside objects.
Tested vehicle specifications
|Tested vehicle||2012 Lexus IS 250 4-door|
|Weight|| 3,509 lbs.|
|Side airbags||front and rear head curtain airbags and front seat-mounted torso airbags|
|Engine||2.5 L V6|
|EPA ratings||21 mpg city / 30 mpg highway|
How this test is conducted
Measures of occupant compartment intrusion on driver side
|Lower hinge pillar max (cm)||39|
|Lower occupant compartment|
|Left toepan (cm)||31|
|Brake pedal (cm)||25|
|Parking brake (cm)||31|
|Rocker panel lateral average (cm)||16|
|Upper hinge pillar max (cm)||16|
|Upper occupant compartment|
|Upper dash (cm)||22|
|Lower instrument panel (cm)||22|
Driver injury measures
|Peak gs at hard contact||negligible|
|Tension (kN)||1.2 |
|Extension bending moment (Nm)||13 |
|Maximum Nij ||0.23 |
|Chest maximum compression (mm)||23 |
|Knee displacement (mm)|
|Knee-thigh-hip injury risk (%)|
|Maximum tibia index|
|Tibia axial force (kN)|
|Foot acceleration (g)|