Top Safety Pick + Top Safety Pick criteria

2014 Toyota Prius

small car / 4-door hatchback

Award applies only to vehicles with optional front crash prevention built after November 2013

2014 Toyota Prius 4-door hatchback

Crashworthiness

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

Crash avoidance & mitigation

Front crash prevention: vehicle-to-vehicle
Optional system (built after May 2013)
Advanced

Other available safety features

  • Standard daytime running lights
  • 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.

Small overlap front: driver-side

Rating applies to 2014-15 models built after November 2013

Tested vehicle: 2014 Toyota Prius Two 4-door

The Toyota Prius was redesigned for the 2010 model year. As in earlier models, the Prius is a hybrid with both a gasoline engine and electric motor. A Prius Plug-in model was introduced in the 2012 model year. This variant also uses a gasoline engine and electric motor, but the motor's lithium-ion battery can be charged by connecting it with an electrical cord to a standard household outlet. The Plug-in is designed to operate primarily in electric mode for 11 miles from a full charge. Beyond this range, it operates in the same manner as the standard Prius.

Beginning with 2014 Prius and Prius Plug-in models, the front structure was modified and the side curtain airbags were lengthened to improve occupant protection in small overlap frontal crashes. Then, starting with 2014 cars built after November 2013, the 15-inch alloy wheels standard on most models were sourced from a single supplier to provide a more controlled crush during the small overlap test. (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.)

Overall evaluation
Structure and safety cage
Driver injury measures
Head/neck
Chest
Hip/thigh
Lower leg/foot
Driver restraints and dummy kinematics
The dummy’s head barely contacted the frontal airbag before sliding off the left side, leaving the head vulnerable to contact with forward structure. Additionally, the seat belt allowed excessive forward excursion of the dummy’s head and torso. The side curtain airbag deployed and had sufficient forward coverage to protect the head from contact with side structure and outside objects.

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 not maintained well.

During the crash, the dummy's head barely contacted the frontal airbag before sliding off to the left, and the seat belt allowed the dummy to move too far forward, as is evident from the gap between the dummy's torso and the seat back.

Despite considerable intrusion of the door hinge pillar, parking brake pedal (see arrow), and instrument panel, 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 CEN1347
Lower occupant compartment
Lower hinge pillar max (cm) 22
Footrest (cm) 7
Left toepan (cm) 2
Brake pedal (cm) 5
Parking brake (cm) 19
Rocker panel lateral average (cm) 1
Upper occupant compartment
Steering column 0
Upper hinge pillar max (cm) 13
Upper dash (cm) 14
Lower instrument panel (cm) 17

Driver injury measures

Test ID CEN1347
Head
HIC-15 170
Peak gs at hard contact no contact
Neck
Tension (kN) 1.5
Extension bending moment (Nm) 10
Maximum Nij 0.29
Chest maximum compression (mm) 20
Femur (kN)
Left 2.9
Right 0.3
Knee displacement (mm)
Left 7
Right 0
Knee-thigh-hip injury risk (%)
Left 0
Right 0
Maximum tibia index
Left 0.52
Right 0.28
Tibia axial force (kN)
Left 1.7
Right 1.3
Foot acceleration (g)
Left 43
Right 85

How the driver-side small overlap front test is conducted

Moderate overlap front: original test

Rating applies to 2010-15 models

Tested vehicle: 2010 Toyota Prius 4-door

The Toyota Prius was redesigned for the 2010 model year. As in earlier models, the Prius is a hybrid with both a gasoline engine and electric motor. A Prius Plug-in model was introduced in the 2012 model year. This variant also uses a gasoline engine and electric motor, but the motor's lithium-ion battery can be charged by connecting it with an electrical cord to a standard household outlet. The Plug-in is designed to operate primarily in electric mode for 11 miles from a full charge. Beyond this range, it operates in the same manner as the standard Prius.

Two tests of the Prius were conducted, the first by Toyota of a 2010 Prius as part of frontal crash test verification and the second by the Institute of a 2012 Prius Plug-in. Ratings are based on both tests and apply to both Prius variants. Vehicle specifications are provided for the 2010 Prius from the Toyota test and photos are provided from the Institute's test of the 2012 Prius Plug-in.

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 Institute's moderate offset frontal 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 very well (Institute test car shown).

Dummy movement was well controlled in both tests. During rebound in the Institute's test, the dummy's head hit the roof rail, as indicated by smeared greasepaint.

In both tests, intrusion into the driver's space was minimal, and all leg and foot injury measures were low (the yellow strip is marking tape that came off the instrument panel during the Institute's test).

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID VTF0901 CEF1205
Footwell intrusion
Footrest (cm) 2 6
Left (cm) 8 9
Center (cm) 12 17
Right (cm) 4 9
Brake pedal (cm) 3 6
Instrument panel rearward movement
Left (cm) 3 4
Right (cm) 3 3
Steering column movement
Upward (cm) -2 -3
Rearward (cm) 3 0
A-pillar rearward movement (cm) 2 2

Driver injury measures

Test ID VTF0901 CEF1205
Head
HIC-15 443 250
Peak gs at hard contact 84 65
Neck
Tension (kN) 1.5 0.9
Extension bending moment (Nm) 16 38
Maximum Nij 0.29 0.35
Chest maximum compression (mm) 29 27
Legs
Femur force - left (kN) 1.5 1.0
Femur force - right (kN) 1.3 1.1
Knee displacement - left (mm) 1 1
Knee displacement - right (mm) 1 0
Maximum tibia index - left 0.47 0.38
Maximum tibia index - right 0.54 0.41
Tibia axial force - left (kN) 2.8 1.8
Tibia axial force - right (kN) 2.7 3.0
Foot acceleration (g)
Left 62 59
Right 53 68

How the moderate overlap front test is conducted

Side: original test

Rating applies to 2010-15 models

Tested vehicle: 2010 Toyota Prius 4-door with standard front and rear head curtain airbags and standard front seat-mounted torso airbags

The Toyota Prius was redesigned for the 2010 model year. As in earlier models, the Prius is a hybrid with both a gasoline engine and electric motor. A Prius Plug-in model was introduced in the 2012 model year. This variant also uses a gasoline engine and electric motor, but the motor's lithium-ion battery can be charged by connecting it with an electrical cord to a standard household outlet. The Plug-in is designed to operate primarily in electric mode for 11 miles from a full charge. Beyond this range, it operates in the same manner as the standard Prius.

Two tests of the Prius were conducted, the first by Toyota of a 2010 Prius as part of side crash test verification and the second by the Institute of a 2012 Prius Plug-in. Ratings are based on both tests and apply to both Prius variants. Vehicle specifications are provided for the 2010 Prius from the Toyota test and photos are provided from the Institute's test of the 2012 Prius Plug-in.

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

View of the vehicle and barrier just after the Institute's crash test.

View of the vehicle after the crash with doors removed, showing the side airbags and damage to the occupant compartment.

Smeared greasepaint shows where the driver dummy's head was protected from being hit by hard structures by the side curtain airbag in the Institute's test.

Smeared greasepaint shows where the rear passenger dummy’s head was protected by the side airbag.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID VTS0901 CES1206
B-pillar to longitudinal centerline of driver's seat (cm) -11.0 -11.5
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test ID VTS0901 CES1206
Head HIC-15 562 391
Neck
Tension (kN) 1.0 0.7
Compression (kN) 0.1 0.1
Shoulder
Lateral deflection (mm) 52 56
Lateral force (kN) 1.9 2.1
Torso
Maximum deflection (mm) 36 36
Average deflection (mm) 27 23
Maximum deflection rate (m/s) 5.50 3.11
Maximum viscous criterion (m/s) 0.78 0.51
Pelvis
Iliac force (kN) 1.0 1.5
Acetabulum force (kN) 1.9 1.8
Combined force (kN) 2.6 3.1
Left femur
L-M force (kN) 0.9 1.1
L-M moment (Nm) 191 180
A-P moment (Nm) -118 95

Passenger injury measures

Test ID VTS0901 CES1206
Head HIC-15 190 134
Neck
Tension (kN) 0.3 0.4
Compression (kN) 1.0 0.7
Shoulder
Lateral deflection (mm) 45 44
Lateral force (kN) 1.4 1.3
Torso
Maximum deflection (mm) 35 37
Average deflection (mm) 23 24
Maximum deflection rate (m/s) 4.50 4.44
Maximum viscous criterion (m/s) 0.69 0.82
Pelvis
Iliac force (kN) 0.7 0.8
Acetabulum force (kN) 2.2 1.9
Combined force (kN) 2.8 2.4
Left femur
L-M force (kN) 1.0 1.5
L-M moment (Nm) 230 231
A-P moment (Nm) 65 -38

How the side crash test is conducted

Roof strength

Rating applies to 2011-15 models built after December 2010

Tested vehicle: 2011 Toyota Prius Two 4-door

Rating applies to both the Prius (tested) and the Prius Plug-in Hybrid.

Overall evaluation
Curb weight 3,056 lbs
Peak force 12,846 lbs
Strength-to-weight ratio 4.20

How the roof strength test is conducted

Head restraints & seats

Seat type: Manual cloth seats AHR

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
Seat type Manual cloth seats AHR
Geometry
Backset (mm) 37
Distance below top of head (mm) 34
Seat design parameters
Pass/fail Pass
Max T1 acceleration (g) 12.6
Head contact time (ms) 62
Force rating 1
Neck forces
Max neck shear force (N) 1
Max neck tension (N) 499

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

Front crash prevention: vehicle-to-vehicle

System details

  • Optional Pre-Collision System

Package name

  • Optional Advanced Technology Package

Overall evaluation

Applies to 2013-15 models built after May 2013

Advanced
Advanced
with optional equipment
  • This system meets the requirements for forward collision warning.
  • In the 12 mph test, impact speed was reduced by 5 mph.
  • In the 25 mph test, impact speed was reduced by 4 mph.

How front crash prevention is evaluated

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