The GLE’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Acadia doesn’t offer pre-crash pretensioners.
The Mercedes GLE has a standard driver’s side knee airbag mounted low on the dashboard. The knee airbag helps prevent the driver from sliding under the seatbelts or the main frontal airbag; this keeps the driver better positioned during a collision for maximum protection. A knee airbag also helps 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 GLE offers optional Post-Collision Brake, which automatically apply 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.
Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The GLE has Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The Acadia doesn’t offer a system that can receive automated systems from other vehicles.
Both the GLE 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, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, around view monitors, rear cross-path warning and available lane departure warning systems.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Mercedes GLE is safer than the GMC Acadia:
|
|
GLE |
Acadia |
|
|
Driver |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
84 |
165 |
|
|
Passenger |
|
| STARS |
5 Stars |
4 Stars |
| HIC |
209 |
234 |
| Chest Compression |
.4 inches |
.7 inches |
| Neck Injury Risk |
31% |
35.9% |
| Neck Stress |
125 lbs. |
159 lbs. |
| Neck Compression |
31 lbs. |
48 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the GLE is safer than the Acadia:
|
|
GLE |
Acadia |
| Overall Evaluation |
GOOD |
ACCEPTABLE |
| Structure |
GOOD |
GOOD |
|
|
Driver Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
GOOD |
| Thigh/hip Rating |
GOOD |
GOOD |
| Leg/foot Rating |
GOOD |
GOOD |
| Restraints |
GOOD |
GOOD |
|
|
Rear Passenger Injury Measures |
|
| Chest Rating |
|
|
| Thigh Rating |
GOOD |
GOOD |
| Restraints |
GOOD |
MARGINAL |
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 Mercedes GLE is safer than the GMC Acadia:
|
|
GLE |
Acadia |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
40 |
64 |
| Hip Force |
287 lbs. |
372 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
103 |
113 |
| Spine Acceleration |
40 G’s |
48 G’s |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| Max Damage Depth |
12 inches |
14 inches |
| HIC |
264 |
346 |
| Spine Acceleration |
35 G’s |
48 G’s |
| Hip Force |
615 lbs. |
721 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Mercedes GLE (with optional crash prevention) has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2025 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and an “Acceptable” score in the revised pedestrian crash prevention test. The Acadia is only a standard “Top Safety Pick” for 2025.

