2011 Jeep Liberty

midsize SUV / 4-door SUV

2011 Jeep Liberty 4-door SUV
2008 Jeep Liberty shown

Crashworthiness

Rating overview
Evaluation criteria Rating
Moderate overlap front: original test
G
Side: original test
M
Roof strength
G
Head restraints & seats
A

Key

GGood
AAcceptable
MMarginal
PPoor
Superior
Advanced
Basic

Some ratings use a scale of Poor to Good. Others range from Basic to Superior.

Moderate overlap front: original test

Tested vehicle: 2008 Jeep Liberty Limited 4-door 4wd
Rating applies to 2008-12 models

The Jeep Liberty was redesigned for the 2008 model year. The Dodge Nitro was introduced in the 2007 model year.

Evaluation criteria Rating
Overall evaluation
G
Structure and safety cage
G
Driver injury measures
Head/neck
G
Chest
G
Leg/foot, left
A
Leg/foot, right
G
Driver restraints and dummy kinematics
G
Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Evaluation criteria Measurement
Test ID CEF0724
Footwell intrusion
Footrest (cm) 4
Left (cm) 6
Center (cm) 12
Right (cm) 5
Brake pedal (cm) 6
Instrument panel rearward movement
Left (cm) 1
Right (cm) 2
Steering column movement
Upward (cm) 9
Rearward (cm) -1
A-pillar rearward movement (cm) 0

Driver injury measures

Evaluation criteria Measurement
Test ID CEF0724
Head
HIC-15 269
Peak gs at hard contact no contact
Neck
Tension (kN) 1.1
Extension bending moment (Nm) 11
Maximum Nij 0.26
Chest maximum compression (mm) 42
Legs
Femur force - left (kN) 4.6
Femur force - right (kN) 4.3
Knee displacement - left (mm) 15
Knee displacement - right (mm) 9
Maximum tibia index - left 0.92
Maximum tibia index - right 0.61
Tibia axial force - left (kN) 2.0
Tibia axial force - right (kN) 3.4
Foot acceleration (g)
Left 102
Right 66

About the original moderate overlap front test

Side: original test

Tested vehicle: 2008 Jeep Liberty Limited 4-door 4wd with standard front and rear head curtain airbags
Rating applies to 2008-12 models

The Jeep Liberty was redesigned for the 2008 model year. The Dodge Nitro was introduced in the 2007 model year.

Evaluation criteria Rating
Overall evaluation
M
Structure and safety cage
A
Driver injury measures
Head/neck
G
Torso
P
Pelvis/leg
G
Driver head protection
G
Rear passenger injury measures
Head/neck
G
Torso
G
Pelvis/leg
G
Rear passenger head protection
G
Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CES0743
B-pillar to longitudinal centerline of driver's seat (cm) -6.5
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Evaluation criteria Measurement
Test ID CES0743
Head HIC-15 148
Neck
Tension (kN) 1.6
Compression (kN) 0.1
Shoulder
Lateral deflection (mm) 34
Lateral force (kN) 1.8
Torso
Maximum deflection (mm) 65
Average deflection (mm) 48
Maximum deflection rate (m/s) 8.11
Maximum viscous criterion (m/s) 2.30
Pelvis
Iliac force (kN) 1.8
Acetabulum force (kN) 3.1
Combined force (kN) 4.9
Left femur
L-M force (kN) 0.5
L-M moment (Nm) 52
A-P moment (Nm) 46

Passenger injury measures

Evaluation criteria Measurement
Test ID CES0743
Head HIC-15 98
Neck
Tension (kN) 0.2
Compression (kN) 0.5
Shoulder
Lateral deflection (mm) 30
Lateral force (kN) 1.7
Torso
Maximum deflection (mm) 35
Average deflection (mm) 27
Maximum deflection rate (m/s) 3.16
Maximum viscous criterion (m/s) 0.63
Pelvis
Iliac force (kN) 2.2
Acetabulum force (kN) 2.8
Combined force (kN) 4.7
Left femur
L-M force (kN) 0.1
L-M moment (Nm) 54
A-P moment (Nm) -30

About the original side crash test

Roof strength

Tested vehicle: 2010 Jeep Liberty Limited 4-door 4wd
Rating applies to 2008-12 models

Overall evaluation
G
Curb weight 4,245 lbs
Peak force 21,073 lbs
Strength-to-weight ratio 4.96

About the roof strength test

Head restraints & seats

Seat type: Manual cloth seats AHR

Overall evaluation
A
Dynamic rating
A
Seat/head restraint geometry
G
Technical measurements for this test
Seat type Manual cloth seats AHR
Geometry
Backset (mm) 38
Distance below top of head (mm) 32
Seat design parameters
Pass/fail Pass
Max T1 acceleration (g) 10.8
Head contact time (ms) 48
Force rating 2
Neck forces
Max neck shear force (N) 139
Max neck tension (N) 554

About the head restraint & seat test
Currently, IIHS tests apply only to front seats.