The Highlander 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 Outlander 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.
The Toyota Highlander’s rear backup camera has a standard washer for maintaining a clear view under various conditions. In contrast, the Mitsubishi Outlander does not offer a rear camera washer, meaning its effectiveness relies on manual cleaning by the user when necessary.
Both the Highlander and Outlander have Rear Cross Traffic Alert, but the Highlander Limited/Platinum has Parking Support Brake (automatically applies the brakes) to better prevent a collision when backing near traffic. The Outlander’s Rear Cross Traffic Alert doesn’t automatically brake.
Both the Highlander and the Outlander have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, 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, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive and around view monitors.
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Toyota Highlander is safer than the Outlander:
|   
  | 
     Highlander  | 
     Outlander  | 
  
|   Overall Evaluation  | 
     GOOD  | 
     GOOD  | 
  
|   Structure  | 
     GOOD  | 
     ACCEPTABLE  | 
  
|   
  | 
     Driver Injury Measures  | 
  |
|   Head/Neck  | 
     GOOD  | 
     GOOD  | 
  
|   Head Injury Criterion  | 
     71  | 
     171  | 
  
|   Neck Tension  | 
     156 lbs.  | 
     201 lbs.  | 
  
|   Torso  | 
     GOOD  | 
     ACCEPTABLE  | 
  
|   Shoulder Deflection  | 
     .51 in  | 
     .71 in  | 
  
|   Torso Max Deflection  | 
     1.26 in  | 
     1.46 in  | 
  
|   Torso Deflection Rate  | 
     6 MPH  | 
     8 MPH  | 
  
|   Head Protection  | 
     GOOD  | 
     GOOD  | 
  
|   
  | 
     Passenger Injury Measures  | 
  |
|   Head/Neck  | 
     GOOD  | 
     GOOD  | 
  
|   Torso  | 
     GOOD  | 
     GOOD  | 
  
|   Pelvis  | 
     GOOD  | 
     GOOD  | 
  
|   Pelvis Force  | 
     201 lbs.  | 
     647 lbs.  | 
  
|   Head Protection  | 
     GOOD  | 
     GOOD  | 
  
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the Highlander is 1% to 3.4% less likely to roll over than the Outlander.

