2004 Isuzu Ascender

midsize SUV / 4-door SUV


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

Other available safety features

  • Standard daytime running lights


  • 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 2004 models

Tested vehicle: 2002 Chevrolet TrailBlazer LS 4-door 4wd

The Chevrolet TrailBlazer was introduced in the 2002 model year as a larger, heavier replacement for the Blazer, which remained in production through the 2004 model year. Similarly, the GMC Envoy and Oldsmobile Bravada were redesigned for 2002, replacing entirely their earlier, smaller versions.

Structural, seat belt, and frontal airbag changes were made beginning with 2005 models to improve occupant protection in frontal crashes. Therefore, the frontal offset ratings for 2002-04 models do not carry over to 2005 and later models.

Overall evaluation
Structure and safety cage
Driver injury measures
Leg/foot, left
Leg/foot, right
Driver restraints and dummy kinematics
Dummy movement was reasonably well controlled. During rebound, the dummy's head extended part way out the open window and hit the B-pillar.

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 greasepaint indicates where the dummy's head hit the B-pillar and window frame, indicating the possibility of head injury.

Intrusion into the driver's footwell area contributed to the likelihood of right lower leg injuries.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CEF0119
Footwell intrusion
Footrest (cm) 14
Left (cm) 17
Center (cm) 22
Right (cm) 17
Brake pedal (cm) 26
Instrument panel rearward movement
Left (cm) 4
Right (cm) 3
Steering column movement
Upward (cm) 3
Rearward (cm) 3
A-pillar rearward movement (cm) 3

Driver injury measures

Test ID CEF0119
HIC-15 386
Peak gs at hard contact 204
Tension (kN) 1.9
Extension bending moment (Nm) 41
Maximum Nij 0.39
Chest maximum compression (mm) 53
Femur force - left (kN) 5.1
Femur force - right (kN) 5.5
Knee displacement - left (mm) 0
Knee displacement - right (mm) 1
Maximum tibia index - left 0.40
Maximum tibia index - right 1.42
Tibia axial force - left (kN) 1.2
Tibia axial force - right (kN) 4.5
Foot acceleration (g)
Left 85
Right 103

How the moderate overlap front 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
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
Currently, IIHS tests apply only to front seats.