For enhanced safety, the front and rear seat shoulder belts of the Toyota Crown Signia 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.
The Crown Signia 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 Grand Cherokee doesn’t offer a whiplash protection system.
With its standard Pre-Collision System with Pedestrian Detection, the Toyota Crown Signia is better at preventing collisions with pedestrians than the Jeep Grand Cherokee, according to the Insurance Institute for Highway Safety:
|
Crown Signia |
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 |
1.9 sec |
1.6 sec |
In a Vehicle-to-Vehicle Frontal Crash Prevention 2.0 test conducted by the Insurance Institute for Highway Safety (IIHS), the Toyota Crown Signia achieved a “Good” rating - the highest possible - for its performance in forward collision warning and automatic braking systems, demonstrating its excellent capabilities in preventing collisions. The Jeep Grand Cherokee has not been tested.
The Crown Signia 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 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 Crown Signia. But it costs extra on the Grand Cherokee.
Both the Crown Signia and Grand Cherokee have rear cross-traffic warning, but the Crown Signia Limited offers optional Parking Support Brake (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 Crown Signia 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, rear cross-path warning and available around view monitors.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Toyota Crown Signia is safer than the Jeep Grand Cherokee:
|
Crown Signia |
Grand Cherokee |
|
Passenger |
|
STARS |
5 Stars |
5 Stars |
Chest Compression |
.6 inches |
.6 inches |
Neck Injury Risk |
26.1% |
28% |
Neck Compression |
31 lbs. |
41 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 Toyota Crown Signia is safer than the Jeep Grand Cherokee:
|
Crown Signia |
Grand Cherokee |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
32 |
87 |
Chest Movement |
.7 inches |
.8 inches |
Abdominal Force |
130 lbs. |
192 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
157 |
164 |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
13 inches |
14 inches |
HIC |
293 |
458 |
Spine Acceleration |
36 G’s |
41 G’s |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.