The X3’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The UX doesn’t offer pre-crash pretensioners.
The X3 has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The UX doesn’t offer front seat center airbags.
In a Vehicle-to-Vehicle Frontal Crash Prevention 2.0 test conducted by the Insurance Institute for Highway Safety (IIHS), the BMW X3 achieved a “Good” rating - the highest possible - for its performance in forward collision warning and automatic braking systems, demonstrating its excellent capabilities in preventing collisions. The Lexus UX has not been tested.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the X3. But it costs extra on the UX.
The X3 offers an optional Surround View to allow the driver to see objects all around the vehicle on a screen. The UX only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
The BMW X3’s optional Surround View offers available integrated front and rear camera washers, ensuring clear, all-weather visibility without the need for manual cleaning. In contrast, the Lexus UX lacks camera washers, requiring you to manually clean the cameras for optimal performance.
To help make backing out of a parking space safer, the X3 has standard Cross Traffic Warning with braking function with automatic braking, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Parking Support Brake costs extra on the UX.
Both the X3 and the UX have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, 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 and driver alert monitors.
The BMW X3 weighs 601 to 1080 pounds more than the Lexus UX. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the BMW X3 is safer than the Lexus UX:
|
|
X3 |
UX |
|
|
Driver |
|
| STARS |
4 Stars |
4 Stars |
| HIC |
96 |
116 |
| Neck Injury Risk |
32.2% |
33% |
| Neck Stress |
262 lbs. |
371 lbs. |
|
|
Passenger |
|
| STARS |
4 Stars |
4 Stars |
| HIC |
119 |
290 |
| Neck Compression |
71 lbs. |
94 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the X3 is much safer than the UX:
|
|
X3 |
UX |
| Overall Evaluation |
GOOD |
MARGINAL |
| Structure |
GOOD |
GOOD |
|
|
Driver Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
GOOD |
| Thigh/hip Rating |
GOOD |
GOOD |
| Thigh Forces L/R |
202/180 pounds |
360/315 pounds |
| Leg/foot Rating |
GOOD |
GOOD |
| Thigh Forces L/R |
202/180 pounds |
360/315 pounds |
| Leg Forces L/R |
405/472 pounds |
584/607 pounds |
| Restraints |
GOOD |
GOOD |
|
|
Rear Passenger Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
GOOD |
| Thigh Rating |
GOOD |
GOOD |
| Restraints |
GOOD |
POOR |
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 BMW X3 is safer than the Lexus UX:
|
|
X3 |
UX |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| Chest Movement |
.6 inches |
.8 inches |
| Abdominal Force |
148 lbs. |
149 lbs. |
| Hip Force |
214 lbs. |
323 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
162 |
292 |
| Spine Acceleration |
37 G’s |
44 G’s |
| Hip Force |
472 lbs. |
919 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The BMW X3 has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2025 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The UX is not even a standard “Top Safety Pick” for 2025.

