Checking and Adjusting the Headliner/Pillar Trim Overlap

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

To prevent the side curtain airbag from deploying and damaging the pillar trim, the overlap between the headliner and pillar trim must be less then 8 mm (0.3 in) To check the overlap, do this:

Install the headliner (A) and the pillar trim (B).

Fig 1: Identifying Headliner And Pillar Trim
Courtesy of AMERICAN HONDA MOTOR CO., INC.

This illustration shows the A-pillar.
Apply masking tape to the headliner, mark the upper edge of each pillar trim.

Fig 2: Applying Masking Tape To Headliner
Courtesy of AMERICAN HONDA MOTOR CO., INC.

This illustration shows the A-pillar.
Remove the pillar trim, and measure the headliner overlap.
- If the overlap is less than 8 mm (0.3 in), remove the tape, and install the pillar trim.
- If the overlap is more than 8 mm (0.3 in), go to step 4.
  
  Fig 3: Measuring Headliner Overlap
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
This illustration shows the A-pillar.
Carefully trim the headliner with a utility knife, reducing the overlap to less than 8 mm (0.3 in).

Fig 4: Trimming Headliner With Utility Knife
Courtesy of AMERICAN HONDA MOTOR CO., INC.

This illustration shows the A-pillar.
Remove the tape, and install the pillar trim.