The X5’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Grand Cherokee doesn’t offer pre-crash pretensioners.
The X5 has standard Active Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Head Restraints system moves the headrests forward to prevent neck and spine injuries. The Grand Cherokee doesn’t offer a whiplash protection system.
With its standard Active Pedestrian Protection, the BMW X5 is better at preventing collisions with pedestrians than the Jeep Grand Cherokee, according to the Insurance Institute for Highway Safety:
|
X5 |
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 |
-35 MPH |
-28 MPH |
The X5 has a standard PostCrash iBrake, 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.
Both the X5 and Grand Cherokee have rear cross-traffic warning, but the X5 has Cross Traffic Warning with 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 X5 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, front seatbelt pretensioners, plastic fuel tanks, 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.
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 BMW X5 is safer than the Grand Cherokee:
|
X5 |
Grand Cherokee |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
35 |
253 |
Neck Tension |
134 lbs. |
402 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.47 in |
1.22 in |
Shoulder Force |
112 lbs. |
223 lbs. |
Torso Max Deflection |
.83 in |
1.34 in |
Torso Deflection Rate |
4 MPH |
7 MPH |
Pelvis |
GOOD |
ACCEPTABLE |
Pelvis Force |
647 lbs. |
1004 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
36 |
185 |
Neck Compression |
156 lbs. |
312 lbs. |
Torso |
GOOD |
GOOD |
Shoulder Deflection |
.24 in |
1.34 in |
Shoulder Force |
89 lbs. |
379 lbs. |
Torso Max Deflection |
.63 in |
1.61 in |
Torso Deflection Rate |
4 MPH |
8 MPH |
Pelvis |
GOOD |
GOOD |
Pelvis Force |
692 lbs. |
803 lbs. |
Head Protection |
GOOD |
GOOD |