Two popular SUVs scored the worst ratings in recent crash tests conducted by the Insurance Institute for Highway Safety.
The IIHS tests of midsize SUVs featured a range of problems, including structural collapse, an airbag nondeployment, hard hits to the dummy's head and an open door.
Still, six of the eight vehicles managed to earn a good or acceptable rating for passenger-side small overlap front protection.
The surprising two to receive poor ratings were the 2018 Jeep Grand Cherokee and the 2018 Ford Explorer.
The midsize SUVs - all 2018 models except the 2019 Kia Sorento - were the latest to be put through the passenger-side small overlap test. A small overlap crash occurs when just the front corner of the vehicle strikes another vehicle or an object such as a tree or utility pole.
IIHS began rating vehicles in driver-side small overlap crashes in 2012. Since then, automakers have made great strides in protecting drivers in such crashes. However, passengers aren't always afforded equal protection, which is why IIHS began rating vehicles in the passenger-side test last year.
"Although some vehicles in this group offer very good protection, in other models, the airbags, safety belts and structure showed serious deficiencies," IIHS Chief Research Officer David Zuby said. "In those SUVs, a front-seat passenger would be at risk of injuries to the head, hip or leg in a right-side small overlap front crash."
The Ford Explorer rated poor because its structure was seriously compromised. Intrusion reached 15 inches at the lower door hinge pillar and 13 inches at the upper door hinge pillar and the dashboard. The door sill was pushed in 6 inches toward the dummy. Measures taken from the dummy showed a high likelihood of injuries to the right hip in a real-world crash of the same severity, as well as a possibility of left lower leg injuries.
The Explorer also had poor structural performance in the driver-side test and earned an overall rating of marginal for driver-side small overlap protection. Ford is redesigning the Explorer and says the new model will have improved small overlap protection on both sides.
The Jeep Grand Cherokee had maximum intrusion of 10 inches at the lower door hinge pillar, but more alarming was what happened to the passenger dummy's head. It hit the dashboard hard through the front airbag, and then, because the side curtain airbag didn't deploy and the door opened, it moved outside the vehicle during rebound. Measures from the dummy indicated that right leg injuries would be likely in a crash of this severity, and a head injury would be possible.
The passenger dummy in the test of the Honda Pilot also indicated the possibility of head injuries. The head slid off the front airbag and moved far enough forward to hit the dashboard hard. However, with good structural performance, it still earns an overall rating of acceptable, as do the Toyota Highlander and the Nissan Pathfinder.
Three of the SUVs - the GMC Acadia, Kia Sorento and Volkswagen Atlas - earn a good rating. The Acadia had maximum intrusion of just 2 inches on the right side of the toepan. Its performance wasn't flawless, however, as the passenger dummy's head slid off the right side of the front airbag, leaving it vulnerable to contact with forward structure.
The Sorento was modified for the 2019 model year to improve protection in a passenger-side small overlap crash. The passenger side toepan and door sill were reinforced. In the test, the structure was maintained well, with maximum intrusion of 4 inches on the right side of the toepan, and the dummy's movement was well-controlled.
Of the newly rated SUVs, the Sorento is the only one to earn the Institute's highest award, Top Safety Pick+.
To qualify for the 2018 award, a vehicle must earn a good or acceptable rating in that test and good ratings in the other IIHS crashworthiness tests. It also needs an advanced or superior rating for front crash prevention and good-rated headlights. The Sorento qualifies when equipped with optional front crash prevention and specific headlights.
CLICK HERE to see the full list of grades from the IIHS.
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Jeep Cherokee, Ford Explorer get worst rating in IIHS crash tests
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