Top Safety Pick +

2017 Toyota Prius

small car / 4-door hatchback

Award applies only to vehicles built after August 2016

Crashworthiness

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

Crash avoidance & mitigation

Evaluation criteria	Rating
Headlights (varies by trim/option)
Front crash prevention: vehicle-to-vehicle
Standard system	Superior

Seat belts & child restraints

Evaluation criteria	Rating
LATCH ease of use	+

Other available safety features

Optional blind spot detection
Standard lane departure warning & prevention
Optional 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.

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.

Evaluation criteria	Rating

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

Evaluation criteria	Measurement
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

Evaluation criteria	Measurement
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

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.

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	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

Evaluation criteria	Measurement
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.

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	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.

Evaluation criteria	Measurement
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

Evaluation criteria	Measurement
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

Seat type	Manual cloth seat
Geometry
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)

All trims; built after August 2016

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

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 good on the gradual right curve, fair on the sharp right and sharp left curves, and inadequate on the gradual left curve.

The low beams created some glare.

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

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

Evaluation criteria	Measurement
Trim level(s)	All trims
Low-beam headlight type	LED projector
High-beam headlight type	LED projector
Curve-adaptive?	No
High-beam assist?	Yes
Overall rating Applies to 2017-18 models built after August 2016

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	132.5 m	4.0%
Straightaway left edge	51.1 m	4.0%
250m radius right curve, right edge	66.3 m	None
250m radius left curve, right edge	49.0 m	None
150m radius right curve, right edge	54.8 m	None
150m radius left curve, left edge	48.0 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	153.8 m
Straightaway left edge	143.0 m
250m radius right curve, right edge	65.6 m
250m radius left curve, left edge	63.5 m
150m radius right curve, right edge	53.8 m
150m radius left curve, left edge	51.8 m

Trim level(s)

All trims; built before September 2016

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

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

The low beams created excessive glare.

High beams
On the straightaway, visibility was good on the right side of the road and fair on the left side. 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

Evaluation criteria	Measurement
Trim level(s)	All trims
Low-beam headlight type	LED projector
High-beam headlight type	LED projector
Curve-adaptive?	No
High-beam assist?	Yes
Overall rating Applies to 2016-17 models built before September 2016

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	143.7 m	118.0%
Straightaway left edge	57.1 m	118.0%
250m radius right curve, right edge	63.6 m	16.6%
250m radius left curve, left edge	57.1 m	None
150m radius right curve, right edge	55.1 m	2.7%
150m radius left curve, left edge	51.6 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	148.0 m
Straightaway left edge	138.4 m
250m radius right curve, right edge	64.3 m
250m radius left curve, left edge	64.0 m
150m radius right curve, right edge	54.1 m
150m radius left curve, left edge	53.3 m

About the headlight evaluation

Front crash prevention: vehicle-to-vehicle

System details

Standard Pre-Collision System with Pedestrian Detection

Overall evaluation

Applies to 2017-20 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

Child seat anchors

Rating applies to 2016-22 models

Evaluation criteria	Rating
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.

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

Rating icon	Rating
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

Position	Rating
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

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

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

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