Bulletin No.: PIC6318A
Published date: 07/20/2018

Preliminary Information
PIC6318A Convertible Wind Noise at Rear Quarter Glass
Models
Brand:
Chevrolet

Model:
Camaro

Model Years:
2016 - 2019

VIN:
from
All

Engine:

to
All

All

Transmissions:
All

Involved Region or Country United States, Canada, Mexico, China, Korea, Puerto Rico, Switzerland, Germany,
United Kingdom, Russia, Sweden, United Arab Emirates, Brazil
Additional Options (RPO)
Power Convertible Folding Top (RPO CM8)
Some customers may comment on a wind noise from the rear quarter window area
Condition
of the vehicle while driving.
Cause

This noise may be caused by the misalignment between the front side window and
the rear quarter window of the vehicle. This concern may occur on either / both
side(s) of the vehicle.

Correction:
The rst step in diagnosing a wind noise is to con rm the noise is actually coming from the side window area.
Dealership technicians are to tape o this gap between the front side window and the rear quarter window. Test
drive the car to verify the noise has been eliminated. If so, the quarter glass to front side window gap may be
misadjusted. To correctly set the gap / location between the rear quarter window and the front side
window, there are three measurements that must be checked / adjusted. The rst two measurements are
actually both related to the vertical gap between the front side window and the rear side window. The vertical
gap between these two windows is not parallel. It is actually "V-shaped" by design. When in the relaxed position,
(folding top is stowed or in the lowered position) the gap at the top between the 2 windows is 12 mm wide, and
the gap at the bottom of the glass between these two is actually 10 mm. This adjustment MUST be made with the
folding top in the stowed or lowered position. The reason for this is when the top is closed and latched, it pinches
the windows together and pushes the top of the quarter glass forward slightly. The result is an even, 10mm gap
between the two windows from top to bottom. This even gap can be seen in the photo below as the folding top is
in the raised, or closed position.

The third measurement / adjustment that must be made is the height of the rear quarter glass. It should be
located so that it sits 4 mm higher than the front side window glass. This can also be seen in the following photo
below.
1 - Rear Quarter Glass
2 - Front Side Glass
3 - 4mm di erence in height

Once the quarter window is adjusted into position, compare the 2 panes of glass at the base to make sure they
are ush with each other (inboard vs outboard). If the di erence between the front and rear windows is more
than 1.5 mm, or if there is a visible gap / daylight can be seen between the seals, the rear quarter glass needs to
be adjusted further.
First, loosen the nut circled in the photo below. Then, gently push out on the base of the quarter glass to
decrease this noticeable gap. Once the gap is within 1.5 mm of the front side glass, tighten this fastener down to
80 inch pounds (9 Nm) of torque. Do not push the glass out too far as this will result in additional glass alignment
issues. Test drive the vehicle and determine if the noise has been eliminated or if more adjustment is needed.

If the adjustments listed above have been made and the wind noise is still present, inspect for the presence of a
foam piece in the rear of the window channel as seen in the photo below. If no foam is found, obtain some and
insert it into the window channel. If a foam piece is already located in the window channel, it may be bene cial to
remove it and install a slightly larger foam piece in its place. This larger piece of foam will put more outward
tension on the window seal and reduce any lingering wind noise.

Warranty Information
Because the repair may be one of several listed, dealerships are to use the labor op that most closely relates to
the repair performed.

Version History
Version
Modi ed

2
Created on 12/15/2017
7/20/2018- Updated Model Years

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