For enhanced safety, the front and rear seat shoulder belts of the Lincoln Nautilus have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Jeep Grand Cherokee doesn’t offer pretensioners for the rear seat belts.
In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Nautilus are reminded to check the back seat if they opened the rear door before starting out. The Grand Cherokee doesn’t offer a back seat reminder.
The Lincoln Nautilus has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps 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 Grand Cherokee doesn’t offer a front passenger side knee airbag.
The Nautilus 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 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 Nautilus’ standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the Grand Cherokee.
The Nautilus (except Standard) offers an optional 360-Degree Camera to allow the driver to see objects all around the vehicle on a screen. The Grand Cherokee only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
Both the Nautilus and the Grand Cherokee have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available all wheel drive.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Lincoln Nautilus is safer than the Jeep Grand Cherokee:
|
Nautilus |
Grand Cherokee |
OVERALL STARS |
5 Stars |
4 Stars |
|
Driver |
|
STARS |
5 Stars |
4 Stars |
Neck Injury Risk |
22.4% |
28% |
|
Passenger |
|
STARS |
5 Stars |
5 Stars |
HIC |
282 |
298 |
Chest Compression |
.4 inches |
.7 inches |
Neck Compression |
44 lbs. |
122 lbs. |
Leg Forces (l/r) |
145/201 lbs. |
314/94 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Lincoln Nautilus is safer than the Grand Cherokee:
|
Nautilus |
Grand Cherokee |
Overall Evaluation |
GOOD |
MARGINAL |
Restraints |
GOOD |
ACCEPTABLE |
Head Neck Evaluation |
GOOD |
GOOD |
Head injury index |
69 |
172 |
Peak Head Forces |
0 G’s |
0 G’s |
Steering Column Movement Rearward |
2 cm |
5 cm |
Chest Evaluation |
GOOD |
GOOD |
Hip & Thigh Evaluation |
GOOD |
GOOD |
Femur Force R/L |
.8/.6 kN |
4.9/2.3 kN |
Hip & Thigh Injury Risk R/L |
0%/0% |
3%/0% |
Lower Leg Evaluation |
GOOD |
MARGINAL |
Tibia index R/L |
.4/.37 |
1.06/.54 |
Tibia forces R/L |
1.4/.8 kN |
2.3/1.3 kN |
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 Nautilus is safer than the Jeep Grand Cherokee:
|
Nautilus |
Grand Cherokee |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
103 |
121 |
Hip Force |
635 lbs. |
689 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Hip Force |
425 lbs. |
652 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the Nautilus is 1.4% to 4.9% less likely to roll over than the Grand Cherokee.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its available headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the Nautilus the rating of “Top Pick” for 2021, a rating granted to only 136 vehicles tested by the IIHS. The Grand Cherokee is not a “Top Pick.”