For enhanced safety, the front and rear seat shoulder belts of the BMW X3 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 X3’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 X3 has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The Grand Cherokee doesn’t offer front seat center airbags.
The X3 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.
The X3 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.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the X3. But it costs extra on the Grand Cherokee.
Both the X3 and Grand Cherokee have rear cross-traffic warning, but the X3 has Cross Traffic Warning with braking function (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 X3 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, 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 around view monitors.
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 BMW X3 is safer than the Jeep Grand Cherokee:
|
|
X3 |
Grand Cherokee |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
60 |
87 |
| Chest Movement |
.6 inches |
.8 inches |
| Abdominal Force |
148 lbs. |
192 lbs. |
| Hip Force |
214 lbs. |
235 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
108 |
164 |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| Max Damage Depth |
13 inches |
14 inches |
| HIC |
162 |
458 |
| Spine Acceleration |
37 G’s |
41 G’s |
| Hip Force |
472 lbs. |
528 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

