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2014 Infiniti QX50

Midsize luxury SUV
Crashworthiness
  • Moderate overlap front
    G
  • Side
    G
  • Roof strength
    G
  • Head restraints & seats
    G

Crash avoidance & Mitigation
Front crash prevention
Crash avoidance rating
Advanced
with optional
equipment

Check for NHTSA recalls
Model year Front overlap Side Roof strength Head restraints & seats Front crash prevention
Small Moderate
2016
G
G
G
Crash avoidance rating
Advanced
2015
G
G
G
G
Crash avoidance rating
Advanced
2014
G
G
G
G
Crash avoidance rating
Advanced

Applies to 2014-16 models

Overall evaluation
G
Structure and safety cage
G
Injury measures
Head/neck
G
Chest
G
Leg/foot, left
G
Leg/foot, right
G
Restraints and dummy kinematics
G
Important: Frontal crash test ratings should be compared only among vehicles of similar weight.

This rating applies to vehicles other than the specific model and body style tested.

The Infiniti EX35 was introduced in the 2008 model year and renamed the EX37 in the 2013 model year because the engine size was increased. The EX was renamed the QX50 beginning with the 2014 model year.

Injury measures

Measures taken from the dummy indicate a low risk of any significant injuries in a crash of this severity. Head acceleration from the roof/sunvisor hit was low.

Restraints and dummy kinematics

Dummy movement was well controlled. During rebound, the dummy's head contacted the side curtain airbag, which had deployed during the crash, and the roof and sunvisor.

Tested vehicle specifications

Tested vehicle 2008 Infiniti EX35 Journey 4-door 4wd
Weight 3,952 lbs.
Side airbags front and rear head curtain airbags and front seat-mounted torso airbags
Wheelbase 110 in.
Length 182 in.
Width 71 in.
Engine 3.5 L V6
EPA ratings 16 mpg city / 23 mpg highway

How this test is conducted

Measures of occcupant compartment intrusion on driver side

Test ID CEF0726
Footwell intrusion
Footrest (cm) 6
Left (cm) 7
Center (cm) 8
Right (cm) 7
Brake pedal (cm) 10
Instrument panel rearward movement
Left (cm) 1
Right (cm) 1
Steering column movement
Upward (cm) 5
Rearward (cm) 3
A-pillar rearward movement (cm) 0

Driver injury measures

Test ID CEF0726
Head
HIC-15 237
Peak gs at hard contact 38
Neck
Tension (kN) 1.1
Extension bending moment (Nm) 21
Maximum Nij 0.26
Chest maximum compression (mm) 33
Legs
Femur force - left (kN) 1.7
Femur force - right (kN) 1.5
Knee displacement - left (mm) 3
Knee displacement - right (mm) 10
Maximum tibia index - left 0.46
Maximum tibia index - right 0.73
Tibia axial force - left (kN) 1.8
Tibia axial force - right (kN) 2.1
Foot acceleration (g)
Left 112
Right 59

Applies to 2014-15 models

Overall evaluation
G
Structure and safety cage
G
Driver injury measures
Head/neck
G
Torso
G
Pelvis/leg
G
Head protection
G
Rear passenger injury measures
Head/neck
G
Torso
G
Pelvis/leg
G
Head protection
G
Side crash test ratings can be compared across vehicle categories.

The Infiniti EX was introduced in the 2008 model year and renamed the QX50 in the 2014 model year. Beginning with 2014 models, the QX50 received side curtain airbag modifications.

Three tests of the vehicle were conducted, two of 2008 EX models by the Institute and the third representing a 2014 QX50 model by Nissan as part of side crash test verification. These vehicles are rated separately, except that the structure ratings for both vehicles are based on all three tests. (The vehicle tested by Nissan was designated as a 2011 EX model but included the side curtain airbag changes of the 2014 QX50 models.)

Injury measures

Driver — Measures taken from the dummy indicate a low risk of any significant injuries in a crash of this severity.

Passenger — Measures taken from the dummy indicate a low risk of any significant injuries in a crash of this severity.

Head protection

Driver — The dummy’s head was protected from being hit by any hard structures, including the intruding barrier, by a side curtain airbag that deployed from the roof.

Passenger — The dummy’s head was protected from being hit by any hard structures, including the intruding barrier, by a side curtain airbag that deployed from the roof.

Tested vehicle specifications

Tested vehicle 2014 Infiniti QX50 4-door 4wd
Weight 4,017 lbs.
Side airbags Standard front and rear head curtain airbags and standard front seat-mounted side torso airbags
Wheelbase 110 in.
Length 182 in.
Width 71 in.
Engine 3.7 L V6
EPA ratings 17 mpg city / 24 mpg highway

How this test is conducted

Measures of occupant compartment intrusion on driver side

Test ID CES0746 CES0748 VTS1123
B-pillar to longitudinal centerline of driver's seat (cm)
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.
-14.5 -15.0 -15.0

Driver injury measures

Test ID VTS1123
Head HIC-15 167
Neck
Tension (kN) 0.8
Compression (kN) 0.2
Shoulder
Lateral deflection (mm) 35
Lateral force (kN) 1.5
Torso
Maximum deflection (mm) 27
Average deflection (mm) 25
Maximum deflection rate (m/s) 2.49
Maximum viscous criterion (m/s) 0.23
Pelvis
Iliac force (kN) 1.4
Acetabulum force (kN) 1.2
Combined force (kN) 2.5
Left femur
L-M force (kN) 0.2
L-M moment (Nm) 67
A-P moment (Nm) -113

Passenger injury measures

Test ID VTS1123
Head HIC-15 76
Neck
Tension (kN) 0.1
Compression (kN) 0.6
Shoulder
Lateral deflection (mm) 31
Lateral force (kN) 1.5
Torso
Maximum deflection (mm) 23
Average deflection (mm) 15
Maximum deflection rate (m/s) 2.12
Maximum viscous criterion (m/s) 0.20
Pelvis
Iliac force (kN) 0.2
Acetabulum force (kN) 1.0
Combined force (kN) 1.0
Left femur
L-M force (kN) 0.9
L-M moment (Nm) 40
A-P moment (Nm) -133

Applies to 2014-15 models

Overall evaluation
G
Curb weight 3,970 lbs
Peak force 15,878 lbs
Strength-to-weight ratio 4.00
Tested vehicle
2011 Infiniti EX35 Journey 4-door 4wd
Roof strength test ratings can be compared across vehicle categories.

In the test, the strength of the roof is determined by pushing a metal plate against one side of it at a slow but constant speed. The force applied relative to the vehicle's weight is known as the strength-to-weight ratio. This graph shows how the ratio varied as the test of this vehicle progressed. The peak strength-to-weight ratio recorded at any time before the roof is crushed 5 inches is the key measurement of roof strength.

A good rating requires a strength-to-weight ratio of at least 4. In other words, the roof must withstand a force of at least 4 times the vehicle's weight before the plate crushes the roof by 5 inches. For an acceptable rating, the minimum required strength-to-weight ratio is 3.25. For a marginal rating, it is 2.5. Anything lower than that is poor.

How this test is conducted

Applies to 2014-16 models

Overall evaluation
G
Dynamic rating
G
Seat/head restraint geometry
G
Important: Ratings for head restraints & seats should be compared only among vehicles of similar weight.

Seat type

Power leather seats with manual adjustable lumbar AHR

How this test is conducted

Seat type Power leather seats with manual adjustable lumbar AHR
Geometry
Backset (mm) 26
Distance below top of head (mm) 38
Seat design parameters
Pass/fail Pass
Max T1 acceleration (g) 11.6
Head contact time (ms) 62
Force rating 1
Neck forces
Max neck shear force (N) 58
Max neck tension (N) 494

Applies to 2014-16 models

System details

  • Optional Intelligent Brake Assist

Package name

  • Optional Technology Package

Overall evaluation

Crash avoidance rating
Advanced
with optional
equipment
2 points total

Forward collision warning

This system meets the National Highway Traffic Safety Administration's criteria for forward collision warning.
1 point

Low-speed autobrake

In the 12 mph IIHS test, impact speed was reduced by 1 mph.
0 points

High-speed autobrake

In the 25 mph IIHS test, impact speed was reduced by 5 mph.
1 point

How this rating is determined

1
Side airbags: front and rear head curtain airbags and front seat-mounted torso airbags
2
Rollover sensor: designed to deploy the side curtain airbags in the event of an impending rollover (beginning with 2014 models)
3
Electronic stability control
4
Antilock brakes

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