In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the TX are reminded to check the back seat if they opened the rear door before starting out. The Model X doesn’t offer a back seat reminder.
Over 200 people are killed each year when backed over by motor vehicles. The TX has a standard Auto Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Model X doesn’t offer automatic braking for stationary objects directly to the rear.
When descending a steep, off-road slope, the TX AWD’s standard Downhill Assist allows you to creep down safely. The Model X doesn’t offer Downhill Assist.
The TX has standard Safety Connect®, which uses a global positioning satellite (GPS) receiver and a cellular system to help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Model X doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.
Both the TX and the Model X 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, 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 around view monitors.
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, results indicate that the Lexus TX is safer than the Tesla Model X:
|
|
TX |
Model X |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
42 |
101 |
| Chest Movement |
.3 inches |
.7 inches |
| Abdominal Force |
64 lbs. |
157 lbs. |
| Hip Force |
199 lbs. |
217 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| Hip Force |
55 lbs. |
425 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

