2008 Isuzu Ascender

midsize SUV / 4-door SUV

Crashworthiness

Rating overview
Moderate overlap front
Side
Head restraints & seats

Other available safety features

  • Standard daytime running lights

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.

Moderate overlap front

Rating applies to 2005-08 models

Tested vehicle: 2007 Chevrolet TrailBlazer LS 4-door 4wd

The Chevrolet TrailBlazer was introduced in the 2002 model year, and the GMC Envoy was redesigned the same year. The Buick Rainier and Isuzu Ascender (5-passenger) were introduced in the 2004 model year.

Beginning with 2005 models, structural, frontal airbag, and seat belt changes were made to improve occupant protection in frontal crashes. The Saab 9-7X was introduced late in the 2005 model year, the Buick Rainier was discontinued after the 2007 model year, and the Isuzu Ascender was discontinued after the 2008 model year.

Overall evaluation
Structure and safety cage
Driver injury measures
Head/neck
Chest
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 reasonably well.

Smeared pink greasepaint indicates where the dummy's head hit the B-pillar. Head acceleration from this hit was low.

Forces on the lower right leg were high enough to indicate the possibility of injuries.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CEF0719
Footwell intrusion
Footrest (cm) 17
Left (cm) 16
Center (cm) 18
Right (cm) 14
Brake pedal (cm) 22
Instrument panel rearward movement
Left (cm) 5
Right (cm) 7
Steering column movement
Upward (cm) 1
Rearward (cm) 5
A-pillar rearward movement (cm) 6

Driver injury measures

Test ID CEF0719
Head
HIC-15 397
Peak gs at hard contact 19
Neck
Tension (kN) 1.4
Extension bending moment (Nm) 26
Maximum Nij 0.31
Chest maximum compression (mm) 43
Legs
Femur force - left (kN) 4.1
Femur force - right (kN) 3.5
Knee displacement - left (mm) 0
Knee displacement - right (mm) 0
Maximum tibia index - left 0.47
Maximum tibia index - right 1.09
Tibia axial force - left (kN) 2.4
Tibia axial force - right (kN) 2.6
Foot acceleration (g)
Left 130
Right 103

How the moderate overlap front test is conducted

Side

Rating applies to 2008 models

Tested vehicle: 2007 Chevrolet TrailBlazer LS 4-door 4wd with optional front and rear head curtain airbags

The Chevrolet TrailBlazer was introduced in the 2002 model year, and the GMC Envoy was redesigned the same year. The Buick Rainier and Isuzu Ascender (5-passenger) were introduced in the 2004 model year.

Beginning with 2005 models, front and rear side head curtain airbags became available as options. The Saab 9-7X was introduced late in the 2005 model year with standard head curtain airbags. The Buick Rainier was discontinued after the 2007 model year and the Isuzu Ascender was discontinued after the 2008 model year. Beginning with the 2008 model year, side airbags were made standard on all remaining models.

Overall evaluation
Structure and safety cage
Driver injury measures
Head/neck
Torso
Pelvis/leg
Driver head protection
Rear passenger injury measures
Head/neck
Torso
Pelvis/leg
Rear passenger head protection

View of the vehicle and barrier just after the crash test.

View of the vehicle after the crash with doors removed, showing the side airbag and damage to the occupant compartment.

Smeared greasepaint shows where the driver dummy's head was protected from being hit by hard structures by the side curtain airbag.

Smeared greasepaint shows where the rear passenger dummy’s head was protected by the side airbag.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CES0724
B-pillar to longitudinal centerline of driver's seat (cm) -0.5
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test ID CES0724
Head HIC-15 326
Neck
Tension (kN) 2.4
Compression (kN) 0.0
Shoulder
Lateral deflection (mm) 53
Lateral force (kN) 2.4
Torso
Maximum deflection (mm) 56
Average deflection (mm) 40
Maximum deflection rate (m/s) 7.46
Maximum viscous criterion (m/s) 1.68
Pelvis
Iliac force (kN) 1.3
Acetabulum force (kN) 2.3
Combined force (kN) 3.4
Left femur
L-M force (kN) 0.2
L-M moment (Nm) 106
A-P moment (Nm) -30

Passenger injury measures

Test ID CES0724
Head HIC-15 146
Neck
Tension (kN) 0.2
Compression (kN) 0.3
Shoulder
Lateral deflection (mm) 32
Lateral force (kN) 1.4
Torso
Maximum deflection (mm) 41
Average deflection (mm) 28
Maximum deflection rate (m/s) 2.70
Maximum viscous criterion (m/s) 0.48
Pelvis
Iliac force (kN) 0.1
Acetabulum force (kN) 2.4
Combined force (kN) 2.4
Left femur
L-M force (kN) 0.7
L-M moment (Nm) 83
A-P moment (Nm) -36

How the side crash test is conducted

Head restraints & seats

Seat type: All seats

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
Seat type All seats
Geometry
Backset (mm) 78
Distance below top of head (mm) 80
Seat design parameters
Pass/fail Fail
Max T1 acceleration (g) 10.7
Head contact time (ms) 96
Force rating 3
Neck forces
Max neck shear force (N) 277
Max neck tension (N) 879

How the head restraint & seat test is conducted