The Highlander has standard Whiplash Injury Lessening Seats, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Injury Lessening Seats system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The M-Class doesn't offer a whiplash protection system.
When descending a steep, off-road slope, the Highlander AWD's standard Downhill Assist Control allows you to creep down safely. The M-Class doesn't offer Downhill Assist Control.
To help make backing safer, the Highlander Limited/Platinum's cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The M-Class doesn't offer a cross-path warning system.
Both the Highlander and the M-Class have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and rear parking sensors.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Toyota Highlander is safer than the Mercedes M-Class:
Highlander |
M-Class |
|
Passenger |
||
STARS |
5 Stars |
5 Stars |
Chest Compression |
.4 inches |
.5 inches |
Neck Injury Risk |
32% |
35% |
Neck Compression |
55 lbs. |
115 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, results indicate that the Toyota Highlander is safer than the Mercedes M-Class:
Highlander |
M-Class |
|
Front Seat |
||
STARS |
5 Stars |
5 Stars |
Chest Movement |
.6 inches |
.7 inches |
Abdominal Force |
88 G's |
150 G's |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

