2018 Jeep Wrangler

midsize SUV / 4-door SUV

2018 Jeep Wrangler 4-door SUV

Crashworthiness

Rating overview
Small overlap front: driver-side
Moderate overlap front
Side
Roof strength
Head restraints & seats

Crash avoidance & mitigation

Headlights
Front crash prevention: vehicle-to-vehicle
Optional system
Superior

Child seat anchors

LATCH ease of use
+

Other available safety features

  • Optional daytime running lights
  • Optional blind spot detection

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.

Small overlap front: driver-side

Rating applies to 2018-20 models

Tested vehicle: 2019 Jeep Wrangler Unlimited Sport 4-door 4wd

The Jeep Wrangler was redesigned for the 2018 model year. The previous design was built concurrently through much of the same model year and was renamed the Wrangler JK. Three driver-side small overlap frontal tests of the Wrangler were conducted, two by the Institute and the other by Fiat Chrysler as part of frontal crash test verification. Ratings are based primarily on the Institute's tests and apply only to the redesigned model.

In both of the Institute's tests, the vehicle tipped onto its passenger side after striking the barrier. The partial rollover presents an additional injury risk beyond what the standard criteria are intended to measure in small overlap frontal crash tests. A vehicle tipping onto its side is not an acceptable outcome for a frontal crash and, as a result, the Wrangler's overall rating was downgraded to marginal.

Overall evaluation
Structure and safety cage
Driver injury measures
Head/neck
Chest
Hip/thigh
Lower leg/foot
Driver restraints and dummy kinematics

Action shot taken during the second of two Institute-conducted driver-side small overlap frontal crash tests just before the vehicle tipped on its side.

The dummy's position in relation to the door frame, steering wheel, and instrument panel after the crash test indicates that the driver's survival space was maintained well (second test shown).

The dummy’s movement was well controlled. The dummy’s head loaded the frontal airbag, which stayed in front of the dummy until rebound. The combination head and torso side airbag deployed but does not have sufficient forward coverage to protect the head from contact with forward side structure and outside objects. The vehicle lacks side curtain airbags (second test shown).

The driver's space was maintained well, and risk of injuries to the dummy's legs and feet was low (second test shown).

The partial rollover presents an additional injury risk beyond what the standard crash test criteria are intended to measure (second test shown).

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CEN2001 CEN1909 VTN1913
Lower occupant compartment
Lower hinge pillar max (cm) 9 3 5
Footrest (cm) 10 9 18
Left toepan (cm) 8 8 15
Brake pedal (cm) 9 10 14
Parking brake (cm)
Rocker panel lateral average (cm) 3 0 1
Upper occupant compartment
Steering column 2 3 4
Upper hinge pillar max (cm) 4 4 4
Upper dash (cm) 4 4 6
Lower instrument panel (cm) 4 4 7

Driver injury measures

Test ID CEN2001 CEN1909 VTN1913
Head
HIC-15 101 80 182
Peak gs at hard contact no contact no contact no contact
Neck
Tension (kN) 1.0 0.9 1.3
Extension bending moment (Nm) 17 14 16
Maximum Nij 0.18 0.24 0.27
Chest maximum compression (mm) 23 20 37
Femur (kN)
Left 0.5 0.4 2.8
Right 0.1 0.0 0.1
Knee displacement (mm)
Left 0 0 9
Right 0 0 0
Knee-thigh-hip injury risk (%)
Left 0 0 0
Right 0 0 0
Maximum tibia index
Left 0.51 0.38 1.18
Right 0.38 0.38 0.28
Tibia axial force (kN)
Left 2.1 1.7 6.6
Right 1.0 0.9 0.9
Foot acceleration (g)
Left 72 102 158
Right 44 34 51

How the driver-side small overlap front test is conducted

Moderate overlap front

Rating applies to 2018-20 models

Tested vehicle: 2018 Jeep Wrangler Unlimited Sahara 4-door 4wd

The Jeep Wrangler was redesigned for the 2018 model year. The previous design was built concurrently through much of the same model year and was renamed the Wrangler JK. Moderate overlap frontal ratings are assigned by the Institute based on a test conducted by Fiat Chrysler as part of frontal crash test verification and apply only to the redesigned model.

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

Measures of occupant compartment intrusion on driver side

Test ID VTF1918
Footwell intrusion
Footrest (cm) 3
Left (cm) 9
Center (cm) 16
Right (cm) 17
Brake pedal (cm) 12
Instrument panel rearward movement
Left (cm) 1
Right (cm) 2
Steering column movement
Upward (cm) 2
Rearward (cm) 1
A-pillar rearward movement (cm) 0

Driver injury measures

Test ID VTF1918
Head
HIC-15 297
Peak gs at hard contact no contact
Neck
Tension (kN) 1.0
Extension bending moment (Nm) 14
Maximum Nij 0.20
Chest maximum compression (mm) 37
Legs
Femur force - left (kN) 0.2
Femur force - right (kN) 0.2
Knee displacement - left (mm) 0
Knee displacement - right (mm) 1
Maximum tibia index - left 0.36
Maximum tibia index - right 0.58
Tibia axial force - left (kN) 3.0
Tibia axial force - right (kN) 2.5
Foot acceleration (g)
Left 117
Right 84

How the moderate overlap front test is conducted

Side

Rating applies to 2018-20 models

Tested vehicle: 2019 Jeep Wrangler Unlimited Sport 4-door 4wd

The Jeep Wrangler was redesigned for the 2018 model year. The previous design was built concurrently through much of the same model year and was renamed the Wrangler JK.

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
The dummy's head was hit by the window frame and C-pillar. This impact did not produce high head injury measures, but the head protection is insufficient.

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 combination head and torso side airbag.

Smeared red greasepaint shows where the rear passenger dummy’s head was hit by the window frame and C-pillar.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CES1906
B-pillar to longitudinal centerline of driver's seat (cm) -16.0
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test ID CES1906
Head HIC-15 152
Neck
Tension (kN) 1.1
Compression (kN) 0.1
Shoulder
Lateral deflection (mm) 38
Lateral force (kN) 2.0
Torso
Maximum deflection (mm) 40
Average deflection (mm) 36
Maximum deflection rate (m/s) 5.26
Maximum viscous criterion (m/s) 0.89
Pelvis
Iliac force (kN) 2.6
Acetabulum force (kN) 1.7
Combined force (kN) 4.2
Left femur
L-M force (kN) 0.2
L-M moment (Nm) 22
A-P moment (Nm) 14

Passenger injury measures

Test ID CES1906
Head HIC-15 108
Neck
Tension (kN) 0.8
Compression (kN) 0.4
Shoulder
Lateral deflection (mm) 9
Lateral force (kN) 0.2
Torso
Maximum deflection (mm) 24
Average deflection (mm) 17
Maximum deflection rate (m/s) 2.56
Maximum viscous criterion (m/s) 0.17
Pelvis
Iliac force (kN) 0.3
Acetabulum force (kN) 2.6
Combined force (kN) 2.6
Left femur
L-M force (kN) 0.3
L-M moment (Nm) 105
A-P moment (Nm) -46

How the side crash test is conducted

Roof strength

Rating applies to 2018-20 models

Tested vehicle: 2019 Jeep Wrangler Unlimited Sport 4-door 4wd

Roof ratings do not apply to the Wrangler JK

Overall evaluation
Curb weight 4,239 lbs
Peak force 22,622 lbs
Strength-to-weight ratio 5.34

How the roof strength test is conducted

Head restraints & seats

Seat type: Manual cloth seat

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
Seat type Manual cloth seat
Geometry
Backset (mm) 26
Distance below top of head (mm) 30
Seat design parameters
Pass/fail Pass
Max T1 acceleration (g) 11.6
Head contact time (ms) 55
Force rating 1
Neck forces
Max neck shear force (N) 3
Max neck tension (N) 286

How the head restraint & seat test is conducted

Front crash prevention: vehicle-to-vehicle

System details

  • Optional Full Speed Forward Collision Warning Plus

Package name

  • Optional Adaptive Cruise Control/Forward Collision Warning+

Overall evaluation

Applies to 2018-20 models

Superior
Superior
with optional equipment
  • This system meets the requirements for forward collision warning.
  • In the 12 mph IIHS test, this vehicle avoided a collision.
  • In the 25 mph IIHS test, this vehicle avoided a collision.

How front crash prevention is evaluated

Headlights

Ratings are given for 2 different headlight variations available on this vehicle.

Trim level(s)

  • Sahara trim equipped with LED Lighting Group package
  • Rubicon trim equipped with LED Lighting Group package
  • Sahara Altitude trim equipped with LED Lighting Group package
  • Moab trim
Low-beam headlight type LED projector
High-beam headlight type LED projector
Curve-adaptive? No
High-beam assist? No
Overall rating
Distance at which headlights provide at least 5 lux illumination:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination Some glare

Low beams
On the straightaway, visibility was fair on the left side of the road and inadequate on the right side. On curves, visibility was good on both right curves, fair on the sharp left curve and inadequate on the gradual left curve.

The low beams created some glare.

High beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was fair on both right curves and inadequate on both left curves.

Technical measurements for this test
Trim level(s)
  • Sahara trim equipped with LED Lighting Group package
  • Rubicon trim equipped with LED Lighting Group package
  • Sahara Altitude trim equipped with LED Lighting Group package
  • Moab trim
Low-beam headlight type LED projector
High-beam headlight type LED projector
Curve-adaptive? No
High-beam assist? No
Overall rating
Applies to 2018-20 models
LOW BEAMS Average minimum useful
illumination distance (5 lux)
Amount glare
exceeded threshold
Straightaway right edge 75.6 m None
Straightaway left edge 48.4 m None
250m radius right curve, right edge 65.9 m None
250m radius left curve, left edge 47.8 m 22.3 %
150m radius right curve, right edge 56.9 m None
150m radius left curve, right edge 48.0 m 8.7 %
HIGH BEAMS Average minimum useful
illumination distance (5 lux)
Straightaway right edge 101.6 m
Straightaway left edge 98.2 m
250m radius right curve, right edge 66.5 m
250m radius left curve, left edge 55.6 m
150m radius right curve, right edge 56.0 m
150m radius left curve, left edge 50.2 m

Trim level(s)

  • Sport trim
  • Sport S trim
  • Sport Altitude trim
  • Sahara trim
  • Rubicon trim
  • Sahara Altitude trim
Low-beam headlight type Halogen reflector
High-beam headlight type Halogen reflector
Curve-adaptive? No
High-beam assist? No
Overall rating
Distance at which headlights provide at least 5 lux illumination:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination

Low beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was inadequate in all 4 tests.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was fair on the right side of the road and inadequate on the left side. On curves, visibility was inadequate in all 4 tests.

Technical measurements for this test
Trim level(s)
  • Sport trim
  • Sport S trim
  • Sport Altitude trim
  • Sahara trim
  • Rubicon trim
  • Sahara Altitude trim
Low-beam headlight type Halogen reflector
High-beam headlight type Halogen reflector
Curve-adaptive? No
High-beam assist? No
Overall rating
Applies to 2018-20 models
LOW BEAMS Average minimum useful
illumination distance (5 lux)
Amount glare
exceeded threshold
Straightaway right edge 75.1 m None
Straightaway left edge 42.1 m None
250m radius right curve, right edge 44.9 m None
250m radius left curve, left edge 41.3 m None
150m radius right curve, right edge 38.3 m None
150m radius left curve, left edge 37.3 m None
HIGH BEAMS Average minimum useful
illumination distance (5 lux)
Straightaway right edge 134.4 m
Straightaway left edge 81.3 m
250m radius right curve, right edge 51.6 m
250m radius left curve, left edge 54.4 m
150m radius right curve, right edge 43.3 m
150m radius left curve, left edge 43.4 m

How headlights are evaluated

Child seat anchors

Applies to 2018-20 models

Overall evaluation
+
extra LATCH positions
Vehicle trim Unlimited Sport
Seat type cloth

This vehicle has 2 rear seating positions with complete child seat attachment (LATCH) hardware.

It has 1 additional seating position with a tether anchor and the ability to borrow lower anchors from the other seating positions.

Note: When anchors are borrowed, they aren't available to use in their designated positions.

Overall evaluation
+
extra LATCH positions
Vehicle trim Unlimited Sport
Seat type cloth
1 2 3
G Good
A Acceptable
M Marginal
P Poor
Seating positions that rely on borrowed lower anchors or have only a tether anchor available are not rated.
thether anchor symbol
Tether anchor
lower anchor symbol
Lower anchors
shared lower achors symbol
Lower anchor(s) can be borrowed from adjacent positions(s)
No hardware available

Details by seating position

1
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
not too deep in seat
not too much force needed to attach
easy to maneuver around anchors
2
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
Can be borrowed from 1 and 3
3
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
not too deep in seat
not too much force needed to attach
easy to maneuver around anchors
Technical measurements for this test

Seat position 21

3

Lower anchor A
Open access rated Yes
Depth Visible
Force (lbs) 0
Clearance angle (degrees) 89
Lower anchor B
Open access rated Yes
Depth Visible
Force (lbs) 0
Clearance angle (degrees) 87
Tether anchor
Location Middle seatback
Confusing hardware present Yes
Has contrasting label
within 3 inches of tether anchor
Yes

Seat position 22

2

Lower anchor A
Lower latch is shared for this seat position
Lower anchor B
Lower latch is shared for this seat position
Tether anchor
Location Middle seatback
Confusing hardware present Yes
Has contrasting label
within 3 inches of tether anchor
Yes

Seat position 23

1

Lower anchor A
Open access rated Yes
Depth Visible
Force (lbs) 0
Clearance angle (degrees) 78
Lower anchor B
Open access rated Yes
Depth Visible
Force (lbs) 0
Clearance angle (degrees) 85
Tether anchor
Location Middle seatback
Confusing hardware present Yes
Has contrasting label
within 3 inches of tether anchor
Yes

How child seat anchors are evaluated