The Lexus UX has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The XC40 doesn’t offer a front passenger side knee airbag.
Using vehicle speed sensors and seat sensors, smart airbags in the UX deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The UX’s side airbags will shut off if a child is leaning against the door. The XC40’s side airbags don’t have smart features and will always deploy full force.
Both the UX and the XC40 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive and rear parking sensors.
The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Lexus UX is safer than the Volvo XC40:
|
UX |
XC40 |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
52 |
78 |
Chest Movement |
.8 inches |
.9 inches |
Abdominal Force |
149 lbs. |
156 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
96 |
119 |
Spine Acceleration |
46 G’s |
48 G’s |
Hip Force |
633 lbs. |
755 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
12 inches |
13 inches |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Lexus UX is safer than the XC40:
|
UX |
XC40 |
Overall Evaluation |
GOOD |
ACCEPTABLE |
Structure |
GOOD |
MARGINAL |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Neck Tension |
223 lbs. |
312 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.83 in |
1.46 in |
Shoulder Force |
223 lbs. |
290 lbs. |
Torso Max Deflection |
1.02 in |
1.65 in |
Torso Deflection Rate |
7 MPH |
9 MPH |
Pelvis |
GOOD |
MARGINAL |
Pelvis Force |
892 lbs. |
1182 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
150 |
387 |
Neck Tension |
112 lbs. |
268 lbs. |
Neck Compression |
67 lbs. |
89 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Torso Max Deflection |
1.46 in |
1.5 in |
Torso Deflection Rate |
6 MPH |
10 MPH |
Head Protection |
GOOD |
GOOD |
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the UX is 1.5% less likely to roll over than the XC40.
The Lexus UX achieved a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS) for the 2024 model year. This recognition was based on its impressive performance in the small overlap frontal crash test, updated side impact crash test, headlight evaluations, and pedestrian crash prevention testing. The XC40 is not a “Top Safety Pick” for 2024.