For enhanced safety, the front seat shoulder belts of the Jeep Grand Cherokee are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The GMC Terrain doesn’t offer height-adjustable seat belts.
The Jeep Grand Cherokee has a standard driver’s side knee airbag mounted low on the dashboard. The knee airbag helps prevent the driver from sliding under the seatbelts or the main frontal airbag; this keeps the driver better positioned during a collision for maximum protection. A knee airbag also helps keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Terrain doesn’t offer knee airbags.
Over 200 people are killed each year when backed over by motor vehicles. The Grand Cherokee has standard ParkSense Rear Park Assist with Stop that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Terrain doesn’t offer backup collision prevention brakes.
A passive infrared night vision system optional on the Grand Cherokee Trailhawk/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 Terrain doesn’t offer a night vision system.
The Grand Cherokee has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the Terrain’s blind spot costs extra.
To help make backing out of a parking space safer, the Grand Cherokee has standard Rear Cross Path Detection, helping the driver avoid collisions. GMC charges extra for Rear Cross Traffic Alert on the Terrain.
The Grand Cherokee 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 Terrain doesn’t offer a driver alert monitor.
Both the Grand Cherokee and the Terrain have standard driver and passenger frontal airbags, front side-impact 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, rearview cameras, available all wheel drive and around view monitors.
The Jeep Grand Cherokee weighs 543 to 2102 pounds more than the GMC Terrain. 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 Jeep Grand Cherokee is much safer than the Terrain:
|
Grand Cherokee |
Terrain |
Overall Evaluation |
GOOD |
MARGINAL |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Neck Compression |
45 lbs. |
112 lbs. |
Torso |
ACCEPTABLE |
MARGINAL |
Shoulder Deflection |
1.22 in |
1.73 in |
Shoulder Force |
223 lbs. |
312 lbs. |
Torso Max Deflection |
1.34 in |
1.69 in |
Torso Deflection Rate |
7 MPH |
8 MPH |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
ACCEPTABLE |
Head Injury Criterion |
185 |
733 |
Head Peak Forces |
no contact |
101 G’s |
Neck Tension |
45 lbs. |
89 lbs. |
Neck Compression |
312 lbs. |
491 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
1.34 in |
1.65 in |
Shoulder Force |
379 lbs. |
402 lbs. |
Pelvis |
GOOD |
GOOD |
Head Protection |
GOOD |
MARGINAL |
For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, daytime pedestrian crash prevention, and nighttime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the Grand Cherokee its highest rating: “Top Safety Pick Plus” for 2023, a rating granted to only 36 vehicles tested by the IIHS. The Terrain has not been fully tested, yet.