For enhanced safety, the front and rear seat shoulder belts of the Lexus NX have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Kia Sportage doesn’t offer pretensioners for its rear seat belts.
The Lexus NX 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 Sportage doesn’t offer knee airbags.
With its standard Pre-Collision System with Pedestrian Detection, the Lexus NX is better at preventing collisions with pedestrians than the Kia Sportage, according to the Insurance Institute for Highway Safety:
|
NX |
Sportage |
Overall Evaluation |
GOOD |
ACCEPTABLE |
|
Crossing Child - DAY |
|
12 MPH |
AVOIDED |
AVOIDED |
25 MPH |
AVOIDED |
AVOIDED |
|
Crossing Adult - NIGHT |
|
12 MPH Brights |
AVOIDED |
AVOIDED |
12 MPH Low beams |
AVOIDED |
AVOIDED |
25 MPH Brights |
AVOIDED |
AVOIDED |
25 MPH Low beams |
AVOIDED |
AVOIDED |
|
Parallel Adult - NIGHT |
|
25 MPH Brights |
AVOIDED |
AVOIDED |
25 MPH Low beams |
AVOIDED |
AVOIDED |
37 MPH Brights |
AVOIDED |
-23 MPH |
Warning Issued-Brights |
2.4 sec |
1.7 sec |
37 MPH Low beams |
AVOIDED |
-21 MPH |
Warning Issued-Low beams |
2.4 sec |
1.2 sec |
The NX has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. Only the Sportage EX/SX/Prestige/X-Line/X-Pro offers a blind spot warning system.
To help make backing out of a parking space safer, the NX has standard Rear Cross-Traffic Alert to warn the driver of approaching traffic and automatically engage the brakes to help avoid a collision. Only the Sportage EX/SX/Prestige/X-Line/X-Pro offers Rear Cross-Traffic Collision Warning.
Both the NX and the Sportage have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, 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, rearview cameras, driver alert monitors and available around view monitors.
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 NX is safer than the Sportage:
|
NX |
Sportage |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Neck Tension |
156 lbs. |
223 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.55 in |
1.1 in |
Shoulder Force |
201 lbs. |
223 lbs. |
Torso Max Deflection |
.98 in |
1.34 in |
Torso Deflection Rate |
4 MPH |
9 MPH |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.83 in |
1.1 in |
Shoulder Force |
223 lbs. |
245 lbs. |
Torso Max Deflection |
1.1 in |
1.38 in |
Pelvis |
GOOD |
GOOD |