Top Safety Pick

2018 Lexus IS

midsize luxury car / 4-door sedan

2018 Lexus IS 4-door sedan
2017 Lexus IS shown

Crashworthiness

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

Crash avoidance & mitigation

Headlights (varies by trim/option)
Front crash prevention
Standard system
Superior

Child seat anchors

LATCH ease of use

Other available safety features

  • Standard daytime running lights
  • Optional blind spot detection
  • Standard lane departure warning
  • Standard 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 2017-19 models built after June 2017

Tested vehicle: 2017 Lexus IS 200t 4-door

The Lexus IS was redesigned for the 2014 model year. There are various models, depending on engine size and cylinder count. Beginning with the 2017 model year, the front-end structure was reinforced and the driver door, lower hinge pillar, and sill were modified to improve occupant protection in small overlap frontal crashes.

Beginning with 2017 models built after June 2017, the front-end structure was modified again and backing material in the footwell was added or changed to further improve occupant protection. (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
Injury measures
Head/neck
Chest
Hip/thigh
Lower leg/foot
Restraints and dummy kinematics

Action shot taken during the small overlap frontal crash test of the 2017 Lexus IS built after June 2017.

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 well.

Forces on the left lower leg were just high enough to contribute to a moderate risk of injury.

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.

Moderate overlap front

Rating applies to 2014-19 models

Tested vehicle: 2014 Lexus IS 250 4-door

The Lexus IS was redesigned for the 2014 model year. There are various models, depending on engine size and cylinder count. Moderate overlap frontal ratings are assigned by the Institute based on a test conducted by Toyota as part of frontal crash test verification.

Overall evaluation
Structure and safety cage
Injury measures
Head/neck
Chest
Leg/foot, left
Leg/foot, right
Restraints and dummy kinematics

Side

Rating applies to 2014-19 models

Tested vehicle: 2014 Lexus IS 250 4-door with standard front and rear head curtain airbags and standard front and rear seat-mounted torso airbags

The Lexus IS was redesigned for the 2014 model year. There are various models, depending on engine size and cylinder count. Side ratings are assigned by the Institute based on a test conducted by Toyota as part of side crash test verification.

Overall evaluation
Structure and safety cage
Driver injury measures
Head/neck
Torso
Pelvis/leg
Head protection
Rear passenger injury measures
Head/neck
Torso
Pelvis/leg
Head protection

Roof strength

Rating applies to 2014-19 models

Tested vehicle: 2017 Lexus IS 300 4-door 4wd

Overall evaluation
Curb weight 3,726 lbs
Peak force 17,513 lbs
Strength-to-weight ratio 4.70

Head restraints & seats

Rating applies to 2017-19 models built after July 2017

Seat type: Power leather seat

Overall evaluation
Dynamic rating
Seat/head restraint geometry

Front crash prevention

System details

  • Standard Pre-Collision System with Pedestrian Detection

Applies to 2017-19 models

Overall evaluation

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

How front crash prevention is evaluated

Headlights

Trim level(s)

  • Turbo trim
  • 300 trim
  • 350 trim
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 fair on the right side of the road and inadequate on the left 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, on both left curves and on the gradual right curve.

How headlights are evaluated

Child seat anchors

Applies to 2017-19 models

Overall evaluation
Vehicle trim IS 300
Seat type leather

This vehicle has 2 rear seating positions with complete child seat attachment (LATCH) hardware.

It has 1 additional seating position with a tether anchor only.

1 2 3
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
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
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
none available
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

How child seat anchors are evaluated