Head Rest: Testing and Inspection
Front Seat Active Head Restraint Inspection
NOTE: If the vehicle has been in a collision, always inspect the active head restraint, even if they appear reusable, by doing the following procedure.
1. Fold the seat-back forward, then recline the seat-back to the first lock position, and adjust the head restraint to the highest position.
2. Apply masking tape (A) on the top of the head restraint (B).
3. Make marks (C) on both sides at 255 mm (10.0 in) upward from the roots of the head restraint frame (D) along the back of the head restraint surface.
Mark a center of these points as a datum point (E).
4. Push the head restraint (A) forward, and measure the horizontal head restraint movement. The head restraint should move more than 55 mm (2.2 in) without resistance. If it is less than 55 mm (2.2 in), or the head restraint does not move smoothly, replace the seat-back frame:
- Driver's seat
- Passenger's seat