The Lexus GX has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags help 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 Acadia doesn’t offer knee airbags.
The GX 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 Acadia 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.
To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the GX. But it costs extra on the Acadia.
Both the GX and the Acadia have standard driver and passenger frontal airbags, front side-impact 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, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.
The Lexus GX weighs 889 to 1208 pounds more than the GMC Acadia. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
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 GX is safer than the GMC Acadia:
|
|
GX |
Acadia |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
25 |
64 |
| Chest Movement |
.3 inches |
.6 inches |
| Hip Force |
109 lbs. |
372 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
19 |
113 |
| Spine Acceleration |
20 G’s |
48 G’s |
| Hip Force |
217 lbs. |
518 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
332 |
346 |
| Spine Acceleration |
42 G’s |
48 G’s |
| Hip Force |
702 lbs. |
721 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

