Applies to 2002-04 models
| Overall evaluation | M |
|---|
| Structure and safety cage | A |
|---|
| Injury measures |
|---|
| Head/neck | A |
| Chest | A |
| Leg/foot, left | G |
| Leg/foot, right | P |
| Restraints and dummy kinematics | A |
|---|
| Important: Frontal crash test ratings should be compared only among vehicles of similar weight.
|
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.
Injury measures
Measures taken from the neck and left leg indicate low risk of injuries to these body regions in a crash of this severity. A high head acceleration occurred when the dummy's head hit the B-pillar, indicating that injuries to the head would be possible. Forces on the chest indicate that injuries to the chest would be possible. Forces on the right tibia indicate that injuries to the lower leg would be likely.
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.
Tested vehicle specifications
| Tested vehicle | 2002 Chevrolet TrailBlazer LS 4wd |
| Weight | 4,544 lbs. |
| Side airbags | front seat-mounted torso airbags |
| Wheelbase | 113 in. |
| Length | 192 in. |
| Width | 75 in. |
| Engine | 4.2 L 6-cylinder |
| EPA ratings | 15 mpg city / 21 mpg highway |
How this test is conducted
Measures of occcupant 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 |
|---|
| Head |
|---|
| HIC-15 | 386 |
| Peak gs at hard contact | 204 |
| Neck |
|---|
| Tension (kN) | 1.9 |
| Extension bending moment (Nm) | 41 |
| Maximum Nij | 0.39 |
| Chest maximum compression (mm) | 53 |
|---|
| Legs |
|---|
| 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 |