Small Pickups Fall Short When It Comes to Rear-Seat Safety

IIHS-crash-test-small-pickups
The 2022 Nissan Frontier Crew Cab was rated acceptable by the IIHS after undergoing an updated moderate overlap frontal crash test.

Most small pickups fall short when it comes to protecting passengers seated in the rear, the latest crash test ratings from the Insurance Institute for Highway Safety show.

“Our updated moderate overlap front crash test proved to be challenging for small pickups,” said IIHS President David Harkey. “A common problem was that the rear passenger dummy's head came dangerously close to the front seatback, and in many cases, dummy measurements indicated a risk of neck or chest injuries. All these things tell us that the rear seat belts need improvement.”

None of the five small crew cab pickups IIHS tested earns a good rating. The Nissan Frontier is rated acceptable. The Ford Ranger earns a marginal rating, and the Chevrolet Colorado, Jeep Gladiator and Toyota Tacoma are all rated poor. The ratings only apply to the crew cab versions.

IIHS launched the updated moderate overlap front test last year after research showed that in newer vehicles the risk of a fatal injury is now higher for belted occupants in the rear than for those in front. This is not because the rear seat has become less safe. Rather, the front seat has become safer because of improved airbags and advanced seat belts that are rarely available in back. Even with these developments, the back seat remains the safest place for young children, who can be injured by an inflating front airbag.

To encourage manufacturers to improve rear-seat protection, the updated test adds a dummy in the back seat behind the driver. The driver dummy is the size of an average adult man. The rear dummy is the size of a small woman or 12-year-old child. IIHS researchers also developed new metrics that focus on the injuries most frequently seen in back-seat passengers.

For a vehicle to earn a good rating, there can’t be an excessive risk of injury to the head, neck, chest or thigh, as recorded by the second-row dummy. The dummy should remain correctly positioned during the crash without sliding forward beneath the lap belt, or “submarining”. The head should also remain a safe distance from the front seatback and the rest of the vehicle interior. A pressure sensor on the rear dummy’s torso is used to check whether the shoulder belt is too high, which can make the restraint system less effective.

As in the original test, the structure of the occupant compartment must maintain adequate survival space for the driver, and measurements taken from the driver dummy shouldn’t show an excessive risk of injuries.

All five small pickups provided good protection in the front seat. However, measurements indicated a slightly higher risk of leg or foot injuries to the driver in the Gladiator and Tacoma.

In the Colorado, Frontier, Ranger and Tacoma, the restraints in the back seat allowed the rear dummy’s head to come too close to the front seatback. That was not an issue for the Gladiator. However, its rear restraints do not include a side curtain airbag, increasing the risk of injury from a hard impact with the interior of the vehicle or even something outside it.

In the Ranger, the rear dummy submarined beneath the lap belt, causing it to ride up from the ideal position on the pelvis onto the abdomen, which increases the risk of internal injuries.

Otherwise, injury measures taken from the rear dummy indicated a moderate or likely risk of both neck and chest injuries in the poor-rated Colorado, Gladiator and Tacoma and a moderate risk of chest injuries in the marginal-rated Ranger.

Source: IIHS

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