For enhanced safety, the front and second-row seat shoulder belts of the Infiniti QX80 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 L doesn’t offer pretensioners for its second-row seat belts.
The QX80 Autograph 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 L doesn’t offer front seat center airbags.
With its standard ProPILOT Assist 1.1, the Infiniti QX80 is better at preventing collisions with pedestrians than the Jeep Grand Cherokee L, according to the Insurance Institute for Highway Safety:
|
QX80 |
Grand Cherokee L |
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 |
2.2 sec |
2 sec |
Warning Issued-Low beams |
1.7 sec |
1.6 sec |
Both the QX80 and the Grand Cherokee L 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 all wheel drive.
The Infiniti QX80 weighs 880 to 1561 pounds more than the Jeep Grand Cherokee L. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
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 Infiniti QX80 is safer than the Grand Cherokee L:
|
QX80 |
Grand Cherokee L |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
17 |
163 |
Neck Tension |
89 lbs. |
312 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.47 in |
1.06 in |
Torso Max Deflection |
.59 in |
1.3 in |
Torso Deflection Rate |
5 MPH |
7 MPH |
Pelvis |
GOOD |
GOOD |
Pelvis Force |
312 lbs. |
870 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
62 |
96 |
Neck Compression |
67 lbs. |
134 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.24 in |
1.38 in |
Shoulder Force |
156 lbs. |
268 lbs. |
Torso Max Deflection |
.55 in |
1.69 in |
Torso Deflection Rate |
3 MPH |
11 MPH |
Pelvis |
GOOD |
ACCEPTABLE |
Pelvis Force |
156 lbs. |
915 lbs. |
Head Protection |
GOOD |
GOOD |