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 Tucson doesn’t offer knee airbags.
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 Tucson’s side airbags don’t have smart features and will always deploy full force.
The UX has standard Whiplash Injury Lessening Front Seatbacks, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Injury Lessening Front Seatbacks system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The Tucson doesn’t offer a whiplash protection system.
The UX has a standard Secondary Collision Brake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Tucson doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
Both the UX and the Tucson have standard driver and passenger frontal airbags, front and rear side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, 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 Hyundai Tucson:
|
UX |
Tucson |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
52 |
71 |
Chest Movement |
.8 inches |
1 inches |
Abdominal Force |
149 lbs. |
223 lbs. |
Hip Force |
323 lbs. |
440 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
Spine Acceleration |
46 G’s |
59 G’s |
Hip Force |
633 lbs. |
751 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
12 inches |
14 inches |
HIC |
292 |
332 |
Spine Acceleration |
44 G’s |
46 G’s |
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 Tucson:
|
UX |
Tucson |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.83 in |
1.1 in |
Torso Max Deflection |
1.02 in |
1.34 in |
Torso Deflection Rate |
7 MPH |
9 MPH |
Pelvis |
GOOD |
GOOD |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Torso |
GOOD |
ACCEPTABLE |
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 1.9% to 3.4% less likely to roll over than the Tucson.