The Navigator has standard Post Collision Braking, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Grand Cherokee L 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.
Both the Navigator and Grand Cherokee L have rear cross-traffic warning, but the Navigator has Rear Cross Traffic Braking (automatically applies the brakes) to better prevent a collision when backing near traffic. The Grand Cherokee L’s Rear Cross Path Detection doesn’t automatically brake.
Both the Navigator and the Grand Cherokee L 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 all-wheel drive.
The Lincoln Navigator weighs 506 to 1492 pounds more than the Jeep Grand Cherokee L. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Lincoln Navigator is safer than the Jeep Grand Cherokee L:
|
|
Navigator |
Grand Cherokee L |
|
|
Driver |
|
| STARS |
5 Stars |
5 Stars |
| Leg Forces (l/r) |
23/39 lbs. |
482/259 lbs. |
|
|
Passenger |
|
| STARS |
5 Stars |
5 Stars |
| Chest Compression |
.4 inches |
.6 inches |
| Leg Forces (l/r) |
271/178 lbs. |
400/347 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 Lincoln Navigator is safer than the Jeep Grand Cherokee L:
|
|
Navigator |
Grand Cherokee L |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
23 |
89 |
| Chest Movement |
.5 inches |
.8 inches |
| Abdominal Force |
108 lbs. |
147 lbs. |
| Hip Force |
180 lbs. |
276 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
61 |
92 |
| Spine Acceleration |
27 G’s |
34 G’s |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| Max Damage Depth |
13 inches |
15 inches |
| HIC |
134 |
376 |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.


