For enhanced safety, the front and rear seat shoulder belts of the Lexus RX 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 Chevrolet Blazer doesn’t offer pretensioners for the rear seat belts.
The Lexus RX 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 Blazer doesn’t offer a front passenger side knee airbag.
The RX has standard Active Headrests, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Headrests system moves the headrests forward to prevent neck and spine injuries. The Blazer doesn’t offer a whiplash protection system.
Over 200 people are killed each year when backed over by motor vehicles. The RX offers optional Auto Brake that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Blazer doesn’t offer backup collision prevention brakes.
The RX has a standard blind spot warning system which uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the Blazer’s blind spot costs extra.
To help make backing out of a parking space safer, the RX has a standard rear cross-path warning system, which uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. Rear cross-path warning costs extra on the Blazer.
The RX’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Blazer doesn’t offer a driver alert monitor.
Both the RX and the Blazer 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, rearview cameras, available all wheel drive and around view monitors.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Lexus RX is safer than the Chevrolet Blazer:
|
RX |
Blazer |
|
Passenger |
|
STARS |
4 Stars |
4 Stars |
HIC |
176 |
313 |
Chest Compression |
.4 inches |
.8 inches |
Neck Compression |
90 lbs. |
140 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
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 RX is safer than the Chevrolet Blazer:
|
RX |
Blazer |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
53 |
93 |
Chest Movement |
.7 inches |
.8 inches |
Abdominal Force |
110 G’s |
157 G’s |
Hip Force |
214 lbs. |
369 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
165 |
251 |
Spine Acceleration |
44 G’s |
45 G’s |
Hip Force |
594 lbs. |
673 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Hip Force |
685 lbs. |
695 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its available headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the RX the rating of “Top Pick” for 2021, a rating granted to only 128 vehicles tested by the IIHS. The Blazer last would have qualified as a “Top Pick” in 2017.