2018 Toyota Sienna
minivan
Small overlap front: driver-side
Rating applies to 2015-20 models
Tested vehicle: 2015 Toyota Sienna LE
The Toyota Sienna was redesigned for the 2011 model year. Beginning with 2015 models, the front-end structure was modified to improve occupant protection in small overlap frontal crashes.
| 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. The side torso airbag also deployed. |
Action shot taken during the driver-side 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 instrument panel and door hinge pillar and some intrusion of the parking brake pedal, risk of injuries to the dummy's legs and feet was low.
Measures of occupant compartment intrusion on driver side
| Test ID | CEN1439 |
|---|---|
| Lower occupant compartment | |
| Lower hinge pillar max (cm) | 11 |
| Footrest (cm) | 9 |
| Left toepan (cm) | 6 |
| Brake pedal (cm) | 7 |
| Parking brake (cm) | 12 |
| Rocker panel lateral average (cm) | 4 |
| Upper occupant compartment | |
| Steering column | 5 |
| Upper hinge pillar max (cm) | 14 |
| Upper dash (cm) | 13 |
| Lower instrument panel (cm) | 10 |
Driver injury measures
| Test ID | CEN1439 |
|---|---|
| Head | |
| HIC-15 | 119 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 1.4 |
| Extension bending moment (Nm) | 6 |
| Maximum Nij | 0.23 |
| Chest maximum compression (mm) | 24 |
| Femur (kN) | |
| Left | 4.3 |
| Right | 0.9 |
| Knee displacement (mm) | |
| Left | 7 |
| Right | 1 |
| Knee-thigh-hip injury risk (%) | |
| Left | 2 |
| Right | 0 |
| Maximum tibia index | |
| Left | 0.54 |
| Right | 0.34 |
| Tibia axial force (kN) | |
| Left | 1.1 |
| Right | 2.4 |
| Foot acceleration (g) | |
| Left | 44 |
| Right | 85 |
Small overlap front: passenger-side
Rating applies to 2011-20 models
Tested vehicle: 2018 Toyota Sienna LE
The Toyota Sienna was redesigned for the 2011 model year. Although Toyota reinforced the structure in later model years on the driver side to improve occupant protection in small overlap frontal crashes, no such changes were made on the passenger side.
| Overall evaluation | |
|---|---|
| Structure and safety cage | |
| Passenger injury measures | |
| Head/neck | |
| Chest | |
| Hip/thigh | |
| Lower leg/foot | |
| Passenger restraints and dummy kinematics | |
| Driver injury measures | |
| Head/neck | |
| Chest | |
| Hip/thigh | |
| Lower leg/foot | |
| Driver restraints and dummy kinematics |
Action shot taken during the passenger-side small overlap frontal crash test.
The dummy's position in relation to the door frame and dashboard after the crash test indicates that the passenger's survival space was not maintained well.
The frontal and side curtain airbags worked well together to keep the passenger dummy’s head from coming close to any stiff structure or outside objects that could cause injury.
Extensive intrusion of the dashboard and door hinge pillar contributed to a moderate risk of injuries to the right hip and right lower leg.
Measures of occupant compartment intrusion on passenger side
| Test ID | CEP1818 |
|---|---|
| Lower occupant compartment | |
| Lower hinge pillar max (cm) | 51 |
| Footrest (cm) | 30 |
| Right toepan (cm) | 19 |
| Center toepan (cm) | 11 |
| Rocker panel lateral average (cm) | 4 |
| Upper occupant compartment | |
| Center dash (cm) | 32 |
| Upper hinge pillar max (cm) | 49 |
| Upper dash (cm) | 42 |
| Right lower dash (cm) | 37 |
Passenger injury measures
| Test ID | CEP1818 |
|---|---|
| Head | |
| HIC-15 | 416 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 2.2 |
| Extension bending moment (Nm) | 42 |
| Maximum Nij | 0.50 |
| Chest maximum compression (mm) | 12 |
| Femur (kN) | |
| Left | 3.5 |
| Right | 5.7 |
| Knee displacement (mm) | |
| Left | 8 |
| Right | 11 |
| Knee-thigh-hip injury risk (%) | |
| Left | 1 |
| Right | 11 |
| Maximum tibia index | |
| Left | 0.53 |
| Right | 0.88 |
| Tibia axial force (kN) | |
| Left | 0.5 |
| Right | 0.3 |
| Foot acceleration (g) | |
| Left | 81 |
| Right | 57 |
Driver injury measures
| Test ID | CEP1818 |
|---|---|
| Head | |
| HIC-15 | 41 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 0.8 |
| Extension bending moment (Nm) | 12 |
| Maximum Nij | 0.16 |
| Chest maximum compression (mm) | 32 |
| Femur (kN) | |
| Left | 0.4 |
| Right | 0.6 |
| Knee displacement (mm) | |
| Left | 0 |
| Right | 1 |
| Knee-thigh-hip injury risk (%) | |
| Left | 0 |
| Right | 0 |
| Maximum tibia index | |
| Left | 0.18 |
| Right | 0.29 |
| Tibia axial force (kN) | |
| Left | 0.8 |
| Right | 0.6 |
| Foot acceleration (g) | |
| Left | 18 |
| Right | 44 |
Moderate overlap front: original test
Rating applies to 2011-20 models
Tested vehicle: 2011 Toyota Sienna LE
The Toyota Sienna was redesigned for the 2011 model year. 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 |
Measures of occupant compartment intrusion on driver side
| Test ID | VTF0906 |
|---|---|
| Footwell intrusion | |
| Footrest (cm) | 8 |
| Left (cm) | 12 |
| Center (cm) | 7 |
| Right (cm) | 8 |
| Brake pedal (cm) | 5 |
| Instrument panel rearward movement | |
| Left (cm) | 3 |
| Right (cm) | 3 |
| Steering column movement | |
| Upward (cm) | 0 |
| Rearward (cm) | -1 |
| A-pillar rearward movement (cm) | 2 |
Driver injury measures
| Test ID | VTF0906 |
|---|---|
| Head | |
| HIC-15 | 209 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 1.5 |
| Extension bending moment (Nm) | 22 |
| Maximum Nij | 0.23 |
| Chest maximum compression (mm) | 31 |
| Legs | |
| Femur force - left (kN) | 0.7 |
| Femur force - right (kN) | 1.4 |
| Knee displacement - left (mm) | 1 |
| Knee displacement - right (mm) | 1 |
| Maximum tibia index - left | 0.39 |
| Maximum tibia index - right | 0.32 |
| Tibia axial force - left (kN) | 2.2 |
| Tibia axial force - right (kN) | 2.8 |
| Foot acceleration (g) | |
| Left | 70 |
| Right | 90 |
Side: original test
Rating applies to 2014-20 models
Tested vehicle: 2014 Toyota Sienna LE with standard head curtain airbags for all three rows of seats and standard front seat-mounted torso airbags
The Toyota Sienna was redesigned for the 2011 model year. Beginning with 2014 models, the side torso airbags were modified to improve the protection of drivers and front seat passengers in side impact crashes. Side ratings are assigned by the Institute based on tests conducted by Toyota.
Two tests of the Sienna were conducted, one of a 2011 model and the other representing a 2014 model. These vehicles are rated separately, except that the structure ratings for both vehicles are based on both tests, as are rear passenger dummy injury and head protection ratings, because no changes were made affecting structure or rear seat occupants. (The vehicle tested by Toyota was designated as a 2011 model but included the side torso airbag changes of the 2014 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 | |
Measures of occupant compartment intrusion on driver side
| Test ID | VTS0909 | VTS1235 |
|---|---|---|
| B-pillar to longitudinal centerline of driver's seat (cm) | -15.5 | -14.0 |
| Negative numbers indicate the amount by which the crush stopped short of the seat centerline. | ||
Driver injury measures
| Test ID | VTS1235 |
|---|---|
| Head HIC-15 | 235 |
| Neck | |
| Tension (kN) | 0.9 |
| Compression (kN) | 0.1 |
| Shoulder | |
| Lateral deflection (mm) | 32 |
| Lateral force (kN) | 1.0 |
| Torso | |
| Maximum deflection (mm) | 22 |
| Average deflection (mm) | 21 |
| Maximum deflection rate (m/s) | 2.77 |
| Maximum viscous criterion (m/s) | 0.14 |
| Pelvis | |
| Iliac force (kN) | 1.0 |
| Acetabulum force (kN) | 1.4 |
| Combined force (kN) | 2.0 |
| Left femur | |
| L-M force (kN) | 0.6 |
| L-M moment (Nm) | 29 |
| A-P moment (Nm) | 109 |
Passenger injury measures
| Test ID | VTS0909 | VTS1235 |
|---|---|---|
| Head HIC-15 | 202 | 156 |
| Neck | ||
| Tension (kN) | 0.4 | 0.2 |
| Compression (kN) | 0.0 | 0.1 |
| Shoulder | ||
| Lateral deflection (mm) | 41 | 42 |
| Lateral force (kN) | 1.4 | 1.1 |
| Torso | ||
| Maximum deflection (mm) | 27 | 31 |
| Average deflection (mm) | 17 | 14 |
| Maximum deflection rate (m/s) | 2.46 | 2.61 |
| Maximum viscous criterion (m/s) | 0.33 | 0.39 |
| Pelvis | ||
| Iliac force (kN) | 1.7 | 1.0 |
| Acetabulum force (kN) | 2.2 | 2.5 |
| Combined force (kN) | 3.6 | 3.4 |
| Left femur | ||
| L-M force (kN) | 0.2 | 0.3 |
| L-M moment (Nm) | 31 | 50 |
| A-P moment (Nm) | 67 | 61 |
Roof strength
Rating applies to 2011-20 models
Tested vehicle: 2011 Toyota Sienna LE
| Overall evaluation | |
|---|---|
| Curb weight | 4,354 lbs |
| Peak force | 17,950 lbs |
| Strength-to-weight ratio | 4.12 |
Head restraints & seats
Seat type: Power cloth seat AHR
| Overall evaluation | |
|---|---|
| Dynamic rating | |
| Seat/head restraint geometry |
| Seat type | Power cloth seat AHR |
|---|---|
| Geometry | |
| Backset (mm) | 55 |
| Distance below top of head (mm) | 28 |
| Seat design parameters | |
| Pass/fail | Pass |
| Max T1 acceleration (g) | 10.4 |
| Head contact time (ms) | 66 |
| Force rating | 1 |
| Neck forces | |
| Max neck shear force (N) | 31 |
| Max neck tension (N) | 540 |
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 equipped with Premium package
| Low-beam headlight type | HID projector |
|---|---|
| High-beam headlight type | Halogen reflector |
| 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 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 the right side of the road and inadequate on the left side. On curves, visibility was good on the gradual right curve and fair on the sharp right and both left curves.
High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway, on both left curves and on both right curves.
| Trim level(s) |
|
|---|---|
| Low-beam headlight type | HID projector |
| High-beam headlight type | Halogen reflector |
| Curve-adaptive? | No |
| High-beam assist? | Yes |
|
Overall rating Applies to 2017-20 models |
| LOW BEAMS | Average minimum useful illumination distance (5 lux) |
Amount glare exceeded threshold |
|---|---|---|
| Straightaway right edge | 102.6 m | None |
| Straightaway left edge | 49.5 m | None |
| 250m radius right curve, right edge | 68.3 m | None |
| 250m radius left curve, left edge | 49.0 m | None |
| 150m radius right curve, right edge | 59.8 m | None |
| 150m radius left curve, right edge | 48.0 m | None |
| HIGH BEAMS | Average minimum useful illumination distance (5 lux) |
|---|---|
| Straightaway right edge | 162.8 m |
| Straightaway left edge | 124.7 m |
| 250m radius right curve, right edge | 77.3 m |
| 250m radius left curve, left edge | 67.3 m |
| 150m radius right curve, right edge | 62.1 m |
| 150m radius left curve, left edge | 55.7 m |
Trim level(s)
- L trim
- LE trim
- SE trim
- XLE trim
- Limited trim
| Low-beam headlight type | Halogen projector |
|---|---|
| High-beam headlight type | Halogen reflector |
| 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 left side of the road and fair on the right side. On curves, visibility was fair on both right curves and inadequate on both left curves.
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 fair on the gradual left and gradual right curves and inadequate on the sharp right and sharp left curves.
High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and all 4 curves.
| Trim level(s) |
|
|---|---|
| Low-beam headlight type | Halogen projector |
| High-beam headlight type | Halogen reflector |
| Curve-adaptive? | No |
| High-beam assist? | Yes |
|
Overall rating Applies to 2017-20 models |
| LOW BEAMS | Average minimum useful illumination distance (5 lux) |
Amount glare exceeded threshold |
|---|---|---|
| Straightaway right edge | 90.2 m | None |
| Straightaway left edge | 56.4 m | None |
| 250m radius right curve, right edge | 58.1 m | None |
| 250m radius left curve, left edge | 49.5 m | None |
| 150m radius right curve, right edge | 48.1 m | None |
| 150m radius left curve, left edge | 43.2 m | None |
| HIGH BEAMS | Average minimum useful illumination distance (5 lux) |
|---|---|
| Straightaway right edge | 165.8 m |
| Straightaway left edge | 148.2 m |
| 250m radius right curve, right edge | 71.8 m |
| 250m radius left curve, left edge | 72.7 m |
| 150m radius right curve, right edge | 52.2 m |
| 150m radius left curve, left edge | 51.1 m |
Front crash prevention: vehicle-to-vehicle
Child seat anchors
Rating applies to 2016-20 models built after March 2016
| Overall evaluation | |
| Vehicle trim | LE |
| Seat type | cloth |
This vehicle has 4 rear seating positions with complete child seat attachment (LATCH) hardware.
| Overall evaluation | |
| Vehicle trim | 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 |
| Lower anchor(s) can be borrowed from adjacent positions(s) | |
| No hardware available |
Details by seating position
| 1 | |
|---|---|
| Tether anchor | |
| hard-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| too deep in seat | |
| not too much force needed to attach | |
| easy to maneuver around anchors | |
| 3 | |
| Tether anchor | |
| hard-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| too deep in seat | |
| not too much force needed to attach | |
| easy to maneuver around anchors | |
| 4 | |
| Tether anchor | |
| hard-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| too deep in seat | |
| not too much force needed to attach | |
| easy to maneuver around anchors | |
| 5 | |
| Tether anchor | |
| hard-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| too deep in seat | |
| not too much force needed to attach | |
| easy to maneuver around anchors |
Seat position 21
| Lower anchor A | |
|---|---|
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 26 |
| Clearance angle (degrees) | 83 |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 21 |
| Clearance angle (degrees) | 79 |
| Tether anchor | |
| Location | Bottom 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 23
| Lower anchor A | |
|---|---|
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 11 |
| Clearance angle (degrees) | 75 |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 21 |
| Clearance angle (degrees) | 72 |
| Tether anchor | |
| Location | Bottom 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 32
| Lower anchor A | |
|---|---|
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 7 |
| Clearance angle (degrees) | 85 |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 10 |
| Clearance angle (degrees) | 90 |
| Tether anchor | |
| Location | Bottom 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 33
| Lower anchor A | |
|---|---|
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 9 |
| Clearance angle (degrees) | 66 |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 11 |
| Clearance angle (degrees) | 84 |
| Tether anchor | |
| Location | Bottom 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 |