Nissan Armada 2025-2026 Service and Repair Manual: High Intensity Cabin Structure

In recent years, the body construction of vehicles is changing for the purpose of protecting passengers at the time of the collision.

A greater use of high strength sheet steel reinforcements and the adoption of sheet steels of different thicknesses are good examples of securing survival space for passengers. Deformation caused when the vehicle body is damaged is controlled through modification of the body construction.

The following points must be kept in mind when high intensity cabin structure bodies need to be repaired.

• No special skills are necessary in body straightening work.

• Body technicians must have a good understanding of the construction of the vehicle body to be repaired.

• Understanding the accurate damage range (performing accurate measuring work) is necessary.

• A greater force is required for straightening because of an increased use of high strength steel plate reinforcements.

  It is necessary to perform additional anchoring for the frame straightening equipment with which multiple jig anchoring is not possible in order to prevent secondary damage.

• Pulling force must be applied evenly to prevent welded points from breaking. (Simultaneous pulling in multiple directions, etc..)

• The anchoring jig specific to each vehicle model is used for vehicles which cannot be anchored at the sill lower flange.

(1) HIGH INTENSITY CABIN STRUCTURE

• When a front or rear end collision occurs, the crushable zone provided at the front and rear of the vehicle effectively absorbs impact energy and cushions the shock to the passengers. In addition, the safety zone securely maintains a survival space.

• Energy absorbing beads and high strength sheet steel reinforcements are used as front side members.

• Outrigger construction. (Distributes impact energy from front side members.)

(2) HIGH INTENSITY CABIN STRUCTURE (SIDE IMPACT)

• To improve the lateral strength of the occupant compartment, lateral strength such as crossmembers, steering member and reinforcements for roof side, center pillars and body sills are redesigned.

  

• When a side collision occurs, the side door beams and doors minimize deformation of the body by absorbing impact energy subjected from the lateral direction, and by distributing energy over the reinforced body side.

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