2002 Isuzu Trooper
midsize SUV / 4-door SUV
Moderate overlap front: original test
Rating applies to 2000-02 models
Tested vehicle: 2001 Isuzu Trooper S 4-door 4wd
The Isuzu Trooper was redesigned for the 1992 model year and structurally modified beginning with 2000 models to improve occupant protection in frontal crashes.
The Insurance Institute for Highway Safety has evaluated the crashworthiness of the Trooper in three 40 mph moderate overlap frontal crash tests into deformable barriers. Three tests were conducted because major fuel leaks occurred in the first two tests. Isuzu identified defects in the design and recalled the affected models. A third test was conducted to assess the effect of the design fixes.
| Overall evaluation | |
|---|---|
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Chest | |
| Leg/foot, left | |
| Leg/foot, right | |
| Driver restraints and dummy kinematics Dummy movement wasn't well controlled during any of the three offset tests. There was far too much upward movement of the steering wheel, which contributed to the dummy's head bottoming out the airbag and hitting the steering wheel in each of the tests. During rebound in the first test, the dummy's head hit the upper B-pillar near the roof side rail. In the second test, the dummy rebounded into the seat without its head coming close to any stiff structure that could cause additional injury. In the third test, the dummy's head grazed the B-pillar on rebound. |
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 the driver's survival space was maintained reasonably well except for far too much upward movement of the steering wheel.
The rubber fuel hose was torn at the indicated location during the second crash test, allowing simulated fuel to leak out of the vehicle following the impact. As part of the second recall, tougher sheathing was installed around this portion of the fuel hose (inset).
The steering wheel moved upward far too much, which contributed to the dummy's head bottoming out the airbag and hitting the steering wheel.
Measures of occupant compartment intrusion on driver side
| Test ID | CF00021 | CF00024 | CF00029 |
|---|---|---|---|
| Footwell intrusion | |||
| Footrest (cm) | 17 | 20 | 21 |
| Left (cm) | 19 | 21 | 21 |
| Center (cm) | 19 | 21 | 23 |
| Right (cm) | 21 | 21 | 23 |
| Brake pedal (cm) | 20 | 19 | 20 |
| Instrument panel rearward movement | |||
| Left (cm) | 3 | 3 | 2 |
| Right (cm) | 3 | 4 | 1 |
| Steering column movement | |||
| Upward (cm) | 21 | 20 | 21 |
| Rearward (cm) | -3 | -3 | -2 |
| A-pillar rearward movement (cm) | 1 | 1 | 2 |
Driver injury measures
| Test ID | CF00021 | CF00024 | CF00029 |
|---|---|---|---|
| Head | |||
| HIC-15 | 411 | 434 | 390 |
| Peak gs at hard contact | 76 | 75 | 74 |
| Neck | |||
| Tension (kN) | 2.5 | 2.0 | 2.1 |
| Extension bending moment (Nm) | 33 | 35 | 24 |
| Maximum Nij | 0.60 | 0.54 | 0.44 |
| Chest maximum compression (mm) | 33 | 33 | 34 |
| Legs | |||
| Femur force - left (kN) | 5.4 | 4.8 | 5.3 |
| Femur force - right (kN) | 3.3 | 4.0 | 3.4 |
| Knee displacement - left (mm) | 8 | 7 | 8 |
| Knee displacement - right (mm) | 10 | 8 | 6 |
| Maximum tibia index - left | 1.11 | 0.98 | 1.08 |
| Maximum tibia index - right | 1.23 | 1.54 | 1.07 |
| Tibia axial force - left (kN) | 10.9 | 11.5 | 10.9 |
| Tibia axial force - right (kN) | 3.2 | 6.5 | 6.6 |
| Foot acceleration (g) | |||
| Left | 287 | 330 | 300 |
| Right | 471 | 372 | 345 |