When descending a steep, off-road slope, the Grand Cherokee L Overland/Summit’s standard Hill-descent Control allows you to creep down safely. The QX80 doesn’t offer Hill-descent Control.
A passive infrared night vision system optional on the Grand Cherokee L Overland/Summit helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The QX80 doesn’t offer a night vision system.
The Grand Cherokee L Summit’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The QX80 doesn’t offer a driver alert monitor.
For better protection of the passenger compartment, the Grand Cherokee L uses safety cell construction with a three-dimensional high-strength frame that surrounds the passenger compartment. It provides extra impact protection and a sturdy mounting location for door hardware and side impact beams. The QX80 uses a body-on-frame design, which has no frame members above the floor of the vehicle.
Both the Grand Cherokee L and the QX80 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, 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, available all wheel drive and 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 Jeep Grand Cherokee L is safer than the Infiniti QX80:
|
Grand Cherokee L |
QX80 |
OVERALL STARS |
5 Stars |
3 Stars |
|
Driver |
|
STARS |
5 Stars |
2 Stars |
HIC |
129 |
384 |
Neck Injury Risk |
21% |
36% |
Neck Stress |
152 lbs. |
439 lbs. |
Neck Compression |
84 lbs. |
95 lbs. |
Leg Forces (l/r) |
482/259 lbs. |
983/651 lbs. |
|
Passenger |
|
STARS |
5 Stars |
3 Stars |
HIC |
137 |
285 |
Chest Compression |
.6 inches |
1.2 inches |
Neck Injury Risk |
28% |
37% |
Neck Stress |
125 lbs. |
219 lbs. |
Neck Compression |
41 lbs. |
78 lbs. |
Leg Forces (l/r) |
400/347 lbs. |
452/534 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 Jeep Grand Cherokee L is safer than the Infiniti QX80:
|
Grand Cherokee L |
QX80 |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
Chest Movement |
.8 inches |
1 inches |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
15 inches |
16 inches |
HIC |
376 |
437 |
Spine Acceleration |
32 G’s |
39 G’s |
Hip Force |
432 lbs. |
684 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the Grand Cherokee L, with its four-star roll-over rating, is 3.4% to 5.2% less likely to roll over than the QX80, which received a three-star rating.