2025 Infiniti QX55

midsize luxury SUV / 4-door SUV

Crashworthiness

Rating overview
Evaluation criteria	Rating
Moderate overlap front: original test
Side: original test
Side: updated test

Other available safety features

Standard blind spot detection
Standard lane departure warning & prevention
Standard rear automatic braking

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: original test

Rating applies to 2022-25 models

Tested vehicle: 2021 Infiniti QX50 Essential 4-door 4wd

The Infiniti QX50 was redesigned for the 2019 model year after a one-year absence from the market. Beginning with 2021 models, design changes were made to the front driver and passenger seat belts and passenger-side frontal and knee airbags to improve occupant protection in frontal crashes.

Moderate overlap frontal ratings are assigned by the Institute based on a test of a 2021 QX50 conducted by Nissan. Because the structure was not changed, the structure rating is based on this verification test and an earlier test of a 2019 QX50 conducted by Nissan.

These ratings also apply to the structurally similar Infiniti QX55, introduced in the 2022 model year.

Evaluation criteria	Rating
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

Evaluation criteria	Measurement
Test ID	VTF2013	VTF1809
Footwell intrusion
Footrest (cm)	6	10
Left (cm)	13	6
Center (cm)	15	15
Right (cm)	8	16
Brake pedal (cm)	6	10
Instrument panel rearward movement
Left (cm)	1	2
Right (cm)	0	6
Steering column movement
Upward (cm)	-2	-2
Rearward (cm)	-5	0
A-pillar rearward movement (cm)	0	1

Evaluation criteria	Measurement
Test ID	VTF2013
Head
HIC-15	225
Peak gs at hard contact	no contact
Neck
Tension (kN)	1.3
Extension bending moment (Nm)	14
Maximum Nij	0.28
Chest maximum compression (mm)	30
Legs
Femur force - left (kN)	0.7
Femur force - right (kN)	0.9
Knee displacement - left (mm)	1
Knee displacement - right (mm)	1
Maximum tibia index - left	0.30
Maximum tibia index - right	0.67
Tibia axial force - left (kN)	1.6
Tibia axial force - right (kN)	1.8
Foot acceleration (g)
Left	64
Right	75

About the original moderate overlap front test

Side: original test

Rating applies to 2023-25 models

Tested vehicle: 2023 Infiniti QX55 Essential 4-door 4wd

The Infiniti QX55 was introduced in the 2022 model year. Beginning with 2023 models, structural changes were implemented to improve occupant protection in side impact crashes. Side ratings are assigned by the Institute based on a test of a 2023 QX55 conducted by Nissan.

Evaluation criteria	Rating
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

Test ID	VTS2206
B-pillar to longitudinal centerline of driver's seat (cm)	-18.5
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Evaluation criteria	Measurement
Test ID	VTS2206
Head HIC-15	255
Neck
Tension (kN)	1.0
Compression (kN)	0.2
Shoulder
Lateral deflection (mm)	32
Lateral force (kN)	1.4
Torso
Maximum deflection (mm)	33
Average deflection (mm)	31
Maximum deflection rate (m/s)	4.28
Maximum viscous criterion (m/s)	0.77
Pelvis
Iliac force (kN)	0.7
Acetabulum force (kN)	1.0
Combined force (kN)	1.6
Left femur
L-M force (kN)	0.5
L-M moment (Nm)	87
A-P moment (Nm)	35

Evaluation criteria	Measurement
Test ID	VTS2206
Head HIC-15	115
Neck
Tension (kN)	0.4
Compression (kN)	0.2
Shoulder
Lateral deflection (mm)	10
Lateral force (kN)	0.4
Torso
Maximum deflection (mm)	25
Average deflection (mm)	22
Maximum deflection rate (m/s)	2.87
Maximum viscous criterion (m/s)	0.34
Pelvis
Iliac force (kN)	0.2
Acetabulum force (kN)	0.8
Combined force (kN)	1.0
Left femur
L-M force (kN)	0.7
L-M moment (Nm)	74
A-P moment (Nm)	30

About the original side crash test

Side: updated test

Rating applies to 2023-25 models

Tested vehicle: 2023 Infiniti QX55 Luxe 4-door 4wd

Evaluation criteria	Rating
Overall evaluation
Structure and safety cage
Driver injury measures
Head/neck
Torso
Pelvis
Driver head protection
Rear passenger injury measures
Head/neck
Torso
Pelvis
Rear passenger head protection

Technical measurements for this test

Evaluation criteria	Measurement
Test ID	VTS2205
B-pillar to longitudinal centerline of driver's seat (cm)	-11.5
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Evaluation criteria	Measurement
Test ID	VTS2205
Head
HIC-15	130
Peak gs at hard contact	no contact
Neck
Tension (kN)	1.2
Compression (kN)	0.4
Shoulder
Lateral deflection (mm)	28
Lateral force (kN)	0.9
Torso
Maximum deflection (mm)	43
Average deflection (mm)	35
Maximum deflection rate (m/s)	3.49
Maximum viscous criterion (m/s)	0.79
Pelvis
Combined force (kN)	5.8

Evaluation criteria	Measurement
Test ID	VTS2205
Head
HIC-15	85
Peak gs at hard contact	no contact
Neck
Tension (kN)	0.5
Compression (kN)	0.2
Shoulder
Lateral deflection (mm)	17
Lateral force (kN)	0.5
Torso
Maximum deflection (mm)	34
Average deflection (mm)	28
Maximum deflection rate (m/s)	2.76
Maximum viscous criterion (m/s)	0.32
Pelvis
Combined force (kN)	2.1

About the side crash test