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 its rear seat belts.
Both the Nautilus and Grand Cherokee have child safety locks to prevent children from opening the rear doors. The Nautilus has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The Grand Cherokee’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
With its standard Co-Pilot 360 Assist+, the Lincoln Nautilus is better at preventing collisions with pedestrians than the Jeep Grand Cherokee, according to the Insurance Institute for Highway Safety:
|
Nautilus |
Grand Cherokee |
Overall Evaluation |
GOOD |
ACCEPTABLE |
|
Crossing Child - DAY |
|
12 MPH |
AVOIDED |
AVOIDED |
25 MPH |
AVOIDED |
-11 MPH |
|
Crossing Adult - NIGHT |
|
12 MPH Brights |
AVOIDED |
AVOIDED |
12 MPH Low beams |
AVOIDED |
AVOIDED |
25 MPH Brights |
AVOIDED |
AVOIDED |
25 MPH Low beams |
AVOIDED |
AVOIDED |
|
Parallel Adult - NIGHT |
|
25 MPH Brights |
AVOIDED |
AVOIDED |
25 MPH Low beams |
AVOIDED |
AVOIDED |
37 MPH Brights |
AVOIDED |
-33 MPH |
Warning Issued-Brights |
2.1 sec |
2 sec |
37 MPH Low beams |
AVOIDED |
-28 MPH |
Warning Issued-Low beams |
1.7 sec |
1.6 sec |
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.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Nautilus. But it costs extra on the Grand Cherokee.
Both the Nautilus and Grand Cherokee have rear cross-traffic warning, but the Nautilus has Rear Cross Traffic Braking (automatically applies the brakes) to better prevent a collision when backing near traffic. The Grand Cherokee’s Rear Cross Path Detection doesn’t automatically brake.
Both the Nautilus and the Grand Cherokee have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, 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 and rear cross-path warning.
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 Nautilus is much safer than the Grand Cherokee:
|
Nautilus |
Grand Cherokee |
Overall Evaluation |
GOOD |
POOR |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck Rating |
GOOD |
GOOD |
Head Injury Criterion |
118 |
252 |
Chest Rating |
GOOD |
GOOD |
Thigh/hip Rating |
GOOD |
GOOD |
Thigh Forces L/R |
157/135 pounds |
180/360 pounds |
Leg/foot Rating |
GOOD |
GOOD |
Thigh Forces L/R |
157/135 pounds |
180/360 pounds |
Leg Forces L/R |
427/405 pounds |
495/607 pounds |
Restraints |
GOOD |
GOOD |
|
Rear Passenger Injury Measures |
|
Head/Neck Rating |
GOOD |
POOR |
Chest Rating |
GOOD |
POOR |
Thigh Rating |
GOOD |
GOOD |
Restraints |
GOOD |
ACCEPTABLE |
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 Lincoln Nautilus is safer than the Grand Cherokee:
|
Nautilus |
Grand Cherokee |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
64 |
253 |
Neck Tension |
201 lbs. |
402 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.71 in |
1.22 in |
Torso Max Deflection |
1.02 in |
1.34 in |
Pelvis |
GOOD |
ACCEPTABLE |
Pelvis Force |
803 lbs. |
1004 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
152 |
185 |
Neck Compression |
89 lbs. |
312 lbs. |
Torso |
GOOD |
GOOD |
Shoulder Deflection |
1.02 in |
1.34 in |
Shoulder Force |
290 lbs. |
379 lbs. |
Torso Max Deflection |
1.1 in |
1.61 in |
Pelvis |
GOOD |
GOOD |
Head Protection |
GOOD |
GOOD |
The Lincoln Nautilus has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2024 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 a “Good” score in the revised pedestrian crash prevention test. The Grand Cherokee is only a standard “Top Safety Pick” for 2024.