Compare the2024 Lexus UXVS 2023 Kia Niro

For enhanced safety, the front and rear seat shoulder belts of the Lexus UX have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Kia Niro doesn’t offer pretensioners for its rear seat belts.

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 Niro 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 Niro’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 Niro 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 Niro 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.

The UX offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Niro doesn’t offer all-wheel drive.

Both the UX and the Niro have standard driver and passenger frontal airbags, front side-impact airbags, driver knee 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, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available rear parking sensors.

For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, daytime pedestrian crash prevention, and nighttime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the UX its highest rating: “Top Safety Pick Plus” for 2023, a rating granted to only 29 vehicles tested by the IIHS. The Niro has not been tested, yet.

The UX’s corrosion warranty is 1 year and unlimited miles longer than the Niro’s (6/unlimited vs. 5/100,000).

The battery on the UX is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the UX’s battery 20 to 30 degrees cooler, its life is increased by years. The Niro’s battery is in the hot engine compartment.

J.D. Power and Associates rated the UX second among small premium suvs in their 2023 Initial Quality Study. The Niro isn’t in the top three in its category.

From surveys of all its subscribers, Consumer Reports’ January 2023 Auto Issue reports that Lexus vehicles are more reliable than Kia vehicles. Consumer Reports ranks Lexus second in overall reliability. Kia is ranked 9th.

The UX’s 2.0 DOHC 4-cylinder hybrid produces 42 more horsepower (181 vs. 139) than the Niro’s 1.6 DOHC 4-cylinder hybrid.

As tested in Motor Trend the Lexus UX is faster than the Kia Niro:

The UX has a standard continuously variable transmission (CVT). With no “steps” between gears, it can keep the engine at the most efficient speed for fuel economy, or keep it at its peak horsepower indefinitely for maximum acceleration. The Niro doesn’t offer a CVT.

For better stopping power the UX’s brake rotors are larger than those on the Niro:

The UX stops shorter than the Niro:

For better traction, the UX has larger tires than the Niro (225/50R18 vs. 205/60R16).

The UX’s tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the Niro’s standard 60 series tires.

For better ride, handling and brake cooling the UX has standard 18-inch wheels. Smaller 16-inch wheels are standard on the Niro.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the UX can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Niro doesn’t offer run-flat tires.

The UX has variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The Niro doesn’t offer variable-assist power steering.

The UX’s front to rear weight distribution is more even (57% to 43%) than the Niro’s (61% to 39%). This gives the UX more stable handling and braking.

For better maneuverability, the UX’s turning circle is .6 feet tighter than the Niro’s (34.2 feet vs. 34.8 feet).

The UX has .5 inches more front legroom and 8.4 inches more front hip room than the Niro.

A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the UX. The Niro doesn’t offer locking storage for small valuables.

J.D. Power and Associates surveys of service recipients show that Lexus service is better than Kia. J.D. Power ranks Lexus first in service department satisfaction. With a 63% lower rating, Kia is ranked 26th.

The UX’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Niro’s standard passenger windows don’t open or close automatically. With the Niro SX’s power windows, only the front windows open or close automatically.

If the windows are left open on the UX the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or from a distance using the keyless remote. (This window function must be activated by your Lexus service department.) The driver of the Niro can only close the windows from inside the vehicle, with the ignition on.

The UX’s LED headlights produce a whiter, brighter light (up to 3x) using five times less power than the Niro’s standard projector halogen headlights and light instantly. LED lights also last over twenty times longer than halogen.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The UX offers available headlight washers to keep headlight output high. The Niro doesn’t offer headlight washers.

To help drivers avoid possible obstacles, the UX offers optional cornering lights to illuminate around corners when the turn signals are activated. The Niro doesn’t offer cornering lights. The UX F Sport also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The UX’s optional rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Niro offers an automatic rear view mirror, but its side mirrors don’t dim.

Optional air-conditioned seats in the UX (except Base) keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Niro doesn’t offer air-conditioned seats.

Consumer Reports® recommends both the Lexus UX and the Kia Niro, based on reliability, safety and performance.