2015 Infiniti QX50

midsize luxury SUV / 4-door SUV

2015 Infiniti QX50 4-door SUV
2014 Infiniti QX50 shown

Crashworthiness

Rating overview
Moderate overlap front
Side
Roof strength
Head restraints & seats

Crash avoidance & mitigation

Front crash prevention
Optional system
Advanced

Other available safety features

  • Optional blind spot detection
  • Optional lane departure warning
  • Optional lane departure prevention

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.

Moderate overlap front

Rating applies to 2014-17 models

Tested vehicle: 2008 Infiniti EX35 Journey 4-door 4wd

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.

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

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 that the driver's survival space was maintained well.

Smeared greasepaint indicates where the dummy's head brushed the side airbag during rebound. The head also hit the roof, sunvisor, and grab handle before moving back against the head restraint.

Intrusion into the driver's space was minimal, and all leg and foot injury measures were low.

Technical measurements for this test

Measures of occupant 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

How the moderate overlap front test is conducted

Side

Rating applies to 2014-15 models

Tested vehicle: 2014 Infiniti QX50 4-door 4wd with standard front and rear head curtain airbags and standard front seat-mounted torso airbags

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.)

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
Technical measurements for this test

Measures of occupant compartment intrusion on driver side

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

Driver injury measures

Test ID CES0746 CES0748 VTS1123
Head HIC-15 158 167
Neck
Tension (kN) 0.4 0.8
Compression (kN) 0.1 0.2
Shoulder
Lateral deflection (mm) 28 35
Lateral force (kN) 1.3 1.5
Torso
Maximum deflection (mm) 20 27
Average deflection (mm) 18 25
Maximum deflection rate (m/s) 4.07 2.49
Maximum viscous criterion (m/s) 0.22 0.23
Pelvis
Iliac force (kN) 0.7 1.4
Acetabulum force (kN) 2.0 1.2
Combined force (kN) 2.6 2.5
Left femur
L-M force (kN) 0.6 0.2
L-M moment (Nm) 140 67
A-P moment (Nm) -59 -113

Passenger injury measures

Test ID CES0746 CES0748 VTS1123
Head HIC-15 28 36 76
Neck
Tension (kN) 0.1 0.0 0.1
Compression (kN) 0.4 0.3 0.6
Shoulder
Lateral deflection (mm) 16 18 31
Lateral force (kN) 1.1 1.2 1.5
Torso
Maximum deflection (mm) 14 16 23
Average deflection (mm) 12 13 15
Maximum deflection rate (m/s) 1.70 1.73 2.12
Maximum viscous criterion (m/s) 0.08 0.11 0.20
Pelvis
Iliac force (kN) 0.1 0.2 0.2
Acetabulum force (kN) 1.3 1.3 1.0
Combined force (kN) 1.3 1.3 1.0
Left femur
L-M force (kN) 0.7 0.7 0.9
L-M moment (Nm) 85 66 40
A-P moment (Nm) -27 -23 -133

How the side crash test is conducted

Roof strength

Rating applies to 2014-15 models

Tested vehicle: 2011 Infiniti EX35 Journey 4-door 4wd

Overall evaluation
Curb weight 3,970 lbs
Peak force 15,878 lbs
Strength-to-weight ratio 4.00

How the roof strength test is conducted

Head restraints & seats

Rating applies to 2014-17 models

Seat type: Power leather seats with manual adjustable lumbar AHR

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
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

How the head restraint & seat test is conducted

Front crash prevention

System details

  • Optional Intelligent Brake Assist

Package name

  • Optional Technology Package

Applies to 2014-17 models

Overall evaluation

  • This system meets the requirements for forward collision warning.
  • In the 12 mph IIHS test, impact speed was reduced by 1 mph.
  • In the 25 mph IIHS test, impact speed was reduced by 5 mph.
Advanced
Advanced
with optional equipment

How front crash prevention is evaluated