2021 Toyota Prius

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

Headlights
Front crash prevention: vehicle-to-vehicle
Standard system	Superior
Front crash prevention: pedestrian (day)
Standard system	Superior

LATCH ease of use	+

Small overlap front: driver-side

Rating applies to 2016-22 models

Tested vehicle: 2016 Toyota Prius Two Eco 4-door

The Toyota Prius was redesigned for the 2016 model year and the Prius Prime was introduced in the 2017 model year.

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 small overlap frontal crash test.

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 very well.

The frontal and side curtain airbags worked well together to keep the head from coming close to any stiff structure or outside objects that could cause injury.

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

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID	CEN1607
Lower occupant compartment
Lower hinge pillar max (cm)	3
Footrest (cm)	2
Left toepan (cm)	1
Brake pedal (cm)	4
Parking brake (cm)	4
Rocker panel lateral average (cm)	1
Upper occupant compartment
Steering column	0
Upper hinge pillar max (cm)	5
Upper dash (cm)	3
Lower instrument panel (cm)	3

Driver injury measures

Test ID	CEN1607
Head
HIC-15	237
Peak gs at hard contact	no contact
Neck
Tension (kN)	1.4
Extension bending moment (Nm)	15
Maximum Nij	0.23
Chest maximum compression (mm)	25
Femur (kN)
Left	0.6
Right	0.8
Knee displacement (mm)
Left	1
Right	1
Knee-thigh-hip injury risk (%)
Left	0
Right	0
Maximum tibia index
Left	0.46
Right	0.32
Tibia axial force (kN)
Left	2.2
Right	2.5
Foot acceleration (g)
Left	40
Right	58

About the small overlap front test

Small overlap front: passenger-side

Rating applies to 2018-22 models built after May 2018

Tested vehicle: 2018 Toyota Prius Two 4-door

The Toyota Prius was redesigned for the 2016 model year and the Prius Prime was introduced in the 2017 model year. Beginning with 2018 models of the Prius and Prius Prime built after May 2018, a structural brace was added to the passenger-side lower door hinge pillar to improve occupant protection in passenger-side small overlap frontal crashes. (Information about when a specific vehicle was manufactured is on the certification label typically affixed to the car on the driver door or adjacent B-pillar.)

Passenger-side small overlap frontal ratings are assigned by the Institute based on a test conducted by Toyota.

Overall evaluation
Structure and safety cage
Passenger injury measures
Head/neck
Chest
Hip/thigh
Lower leg/foot
Passenger restraints and dummy kinematics The dummy’s head barely contacted the frontal airbag before sliding off the right side, allowing the head to move far enough forward to hit the dashboard. The side curtain airbag deployed and has sufficient forward coverage to protect the head from contact with side structure and outside objects. The side torso airbag also deployed.
Driver injury measures
Head/neck
Chest
Hip/thigh
Lower leg/foot
Driver restraints and dummy kinematics

Technical measurements for this test

Measures of occupant compartment intrusion on passenger side

Test ID	VTP1807
Lower occupant compartment
Lower hinge pillar max (cm)	10
Footrest (cm)	5
Right toepan (cm)	3
Center toepan (cm)	2
Rocker panel lateral average (cm)	1
Upper occupant compartment
Center dash (cm)	4
Upper hinge pillar max (cm)	11
Upper dash (cm)	6
Right lower dash (cm)	6

Passenger injury measures

Test ID	VTP1807
Head
HIC-15	221
Peak gs at hard contact	49
Neck
Tension (kN)	1.6
Extension bending moment (Nm)	28
Maximum Nij	0.44
Chest maximum compression (mm)	19
Femur (kN)
Left	0.8
Right	2.9
Knee displacement (mm)
Left	4
Right	12
Knee-thigh-hip injury risk (%)
Left	0
Right	0
Maximum tibia index
Left	0.63
Right	0.77
Tibia axial force (kN)
Left	2.4
Right	0.3
Foot acceleration (g)
Left	57
Right	54

Driver injury measures

Test ID	VTP1807
Head
HIC-15	258
Peak gs at hard contact	no contact
Neck
Tension (kN)	1.2
Extension bending moment (Nm)	9
Maximum Nij	0.24
Chest maximum compression (mm)	20
Femur (kN)
Left	0.4
Right	0.6
Knee displacement (mm)
Left	1
Right	0
Knee-thigh-hip injury risk (%)
Left	0
Right	0
Maximum tibia index
Left	0.43
Right	0.25
Tibia axial force (kN)
Left	0.3
Right	1.0
Foot acceleration (g)
Left	69
Right	46

About the small overlap front test

Moderate overlap front: original test

Rating applies to 2016-22 models

Tested vehicle: 2016 Toyota Prius Two 4-door

The Toyota Prius was redesigned for the 2016 model year and the Prius Prime was introduced in the 2017 model year. Moderate overlap frontal ratings are assigned by the Institute based on a test conducted by Toyota.

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	VTF1606
Footwell intrusion
Footrest (cm)	2
Left (cm)	5
Center (cm)	6
Right (cm)	8
Brake pedal (cm)	3
Instrument panel rearward movement
Left (cm)	1
Right (cm)	0
Steering column movement
Upward (cm)	-1
Rearward (cm)	-6
A-pillar rearward movement (cm)	1

Driver injury measures

Test ID	VTF1606
Head
HIC-15	196
Peak gs at hard contact	no contact
Neck
Tension (kN)	1.2
Extension bending moment (Nm)	13
Maximum Nij	0.26
Chest maximum compression (mm)	28
Legs
Femur force - left (kN)	0.6
Femur force - right (kN)	0.6
Knee displacement - left (mm)	1
Knee displacement - right (mm)	1
Maximum tibia index - left	0.41
Maximum tibia index - right	0.75
Tibia axial force - left (kN)	2.2
Tibia axial force - right (kN)	2.7
Foot acceleration (g)
Left	52
Right	114

About the original moderate overlap front test

Side: original test

Rating applies to 2016-22 models

Tested vehicle: 2016 Toyota Prius Two 4-door

The Toyota Prius was redesigned for the 2016 model year and the Prius Prime was introduced in the 2017 model year. Side ratings are assigned by the Institute based on a test conducted by Toyota.

Driver injury measures
Overall evaluation
Structure and safety cage
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	VTS1606
B-pillar to longitudinal centerline of driver's seat (cm)	-17.0
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test ID	VTS1606
Head HIC-15	434
Neck
Tension (kN)	1.2
Compression (kN)	0.0
Shoulder
Lateral deflection (mm)	31
Lateral force (kN)	1.5
Torso
Maximum deflection (mm)	42
Average deflection (mm)	37
Maximum deflection rate (m/s)	4.70
Maximum viscous criterion (m/s)	0.63
Pelvis
Iliac force (kN)	3.3
Acetabulum force (kN)	1.9
Combined force (kN)	5.2
Left femur
L-M force (kN)	0.2
L-M moment (Nm)	21
A-P moment (Nm)	-87

Passenger injury measures

Test ID	VTS1606
Head HIC-15	162
Neck
Tension (kN)	0.3
Compression (kN)	0.5
Shoulder
Lateral deflection (mm)	37
Lateral force (kN)	1.3
Torso
Maximum deflection (mm)	41
Average deflection (mm)	28
Maximum deflection rate (m/s)	2.60
Maximum viscous criterion (m/s)	0.52
Pelvis
Iliac force (kN)	0.1
Acetabulum force (kN)	0.8
Combined force (kN)	0.8
Left femur
L-M force (kN)	2.1
L-M moment (Nm)	70
A-P moment (Nm)	-234

About the original side crash test

Roof strength

Rating applies to 2016-22 models

Tested vehicle: 2016 Toyota Prius Two 4-door

Rating applies to the Toyota Prius (tested) and the structurally similar Toyota Prius Prime.

Overall evaluation
Curb weight	3,081 lbs
Peak force	17,481 lbs
Strength-to-weight ratio	5.67

About the roof strength test

Head restraints & seats

Seat type: Manual cloth seat

Overall evaluation
Dynamic rating
Seat/head restraint geometry

Technical measurements for this test

Geometry
Seat type	Manual cloth seat
Backset (mm)	24
Distance below top of head (mm)	10
Seat design parameters
Pass/fail	Pass
Max T1 acceleration (g)	14.5
Head contact time (ms)	59
Force rating	1
Neck forces
Max neck shear force (N)	0
Max neck tension (N)	269

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

Headlights

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

Trim level(s)

Limited trim
XLE trim equipped with Advanced Technology package

Distance at which headlights provide at least 5 lux illumination:
Low-beam headlight type	LED projector
High-beam headlight type	LED projector
Curve-adaptive?	Yes
High-beam assist?	Yes
Overall rating

Low beams
On the straightaway, visibility was good on the right side of the road and inadequate on the left 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 never exceeded glare limits.

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

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and on both left curves.

Technical measurements for this test

Trim level(s)	Limited trim XLE trim equipped with Advanced Technology package
Low-beam headlight type	LED projector
High-beam headlight type	LED projector
Curve-adaptive?	Yes
High-beam assist?	Yes
Overall rating Applies to 2019-22 models

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	93.0 m	None
Straightaway left edge	40.3 m	None
250m radius right curve, right edge	83.7 m	None
250m radius left curve, left edge	47.3 m	None
150m radius right curve, right edge	73.0 m	None
150m radius left curve, left edge	48.7 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	150.4 m
Straightaway left edge	149.9 m
250m radius right curve, right edge	87.4 m
250m radius left curve, left edge	86.9 m
150m radius right curve, right edge	72.9 m
150m radius left curve, left edge	74.7 m

Trim level(s)

L Eco trim
LE trim
XLE trim

Distance at which headlights provide at least 5 lux illumination:
Low-beam headlight type	LED projector
High-beam headlight type	LED projector
Curve-adaptive?	No
High-beam assist?	Yes
Overall rating

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

The low beams never exceeded glare limits.

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

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway, on both left curves and on the gradual right curve.

Technical measurements for this test

Trim level(s)	L Eco trim LE trim XLE trim
Low-beam headlight type	LED projector
High-beam headlight type	LED projector
Curve-adaptive?	No
High-beam assist?	Yes
Overall rating Applies to 2019-22 models

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	134.1 m	None
Straightaway left edge	51.6 m	None
250m radius right curve, right edge	64.4 m	None
250m radius left curve, right edge	49.0 m	None
150m radius right curve, right edge	52.2 m	None
150m radius left curve, left edge	48.8 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	159.2 m
Straightaway left edge	147.9 m
250m radius right curve, right edge	64.5 m
250m radius left curve, left edge	65.0 m
150m radius right curve, right edge	51.6 m
150m radius left curve, left edge	50.0 m

About the headlight evaluation

Front crash prevention: vehicle-to-vehicle

System details

Standard Toyota Safety Sense 2.0 Pre-Collision System with Pedestrian Detection

Overall evaluation

Applies to 2021-22 models

Superior

This system meets the requirements for forward collision warning.
In the 12 mph test, this vehicle avoided a collision.
In the 25 mph test, this vehicle avoided a collision.

About the original front crash prevention test

Front crash prevention: pedestrian (day)

System details

standard Toyota Safety Sense 2.0 Pre-Collision System with Pedestrian Detection

Overall evaluation

This rating applies to all 2021-22 models

Superior

Crossing child

In the 12 mph test, this vehicle avoided a collision.
In the 25 mph test, this vehicle avoided a collision.

Crossing adult

In the 12 mph test, this vehicle avoided a collision.
In the 25 mph test, this vehicle avoided a collision.

Parallel adult

In the 25 mph test, this vehicle avoided a collision.
In the 37 mph test, impact speed was reduced by 25 mph. A warning was issued 1.9 seconds before impact.

About the pedestrian front crash prevention test

Child seat anchors

Rating applies to 2016-22 models

Overall evaluation	+ extra LATCH positions
Vehicle trim	Two / LE
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	Two / LE
Seat type	cloth

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
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
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
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)	91
Lower anchor B
Open access rated	Yes
Depth	Visible
Force (lbs)	0
Clearance angle (degrees)	89
Tether anchor
Location	Middle seatback
Confusing hardware present	Yes
Has contrasting label within 3 inches of tether anchor	Yes
Tether anchors can be accessed while seatback is properly positioned for use of LATCH	Not measured

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	No
Has contrasting label within 3 inches of tether anchor	Yes
Tether anchors can be accessed while seatback is properly positioned for use of LATCH	Not measured

Seat position 23

1

Lower anchor A
Open access rated	Yes
Depth	Visible
Force (lbs)	0
Clearance angle (degrees)	90
Lower anchor B
Open access rated	Yes
Depth	Visible
Force (lbs)	0
Clearance angle (degrees)	90
Tether anchor
Location	Middle seatback
Confusing hardware present	Yes
Has contrasting label within 3 inches of tether anchor	Yes
Tether anchors can be accessed while seatback is properly positioned for use of LATCH	Not measured

About the child seat anchor evaluation

2021 Toyota Prius

small car / 4-door hatchback

Crashworthiness

Crash avoidance & mitigation

Seat belts & child restraints

Other available safety features

Small overlap front: driver-side

Small overlap front: passenger-side

Moderate overlap front: original test

Side: original test

Roof strength

Head restraints & seats

Headlights

Trim level(s)

Trim level(s)

Front crash prevention: vehicle-to-vehicle

System details

Overall evaluation

Front crash prevention: pedestrian (day)

Child seat anchors