19NA096

Service Bulletin
Bulletin No.:
19-NA-096
Date:
May, 2019
TECHNICAL
Subject:
Brand:
Cadillac
Clicking, Popping, Tapping, Creaking, Flexing, Rubbing or Rattle Noises from Roof
Area During Turns or Driving Over Uneven Pavement
Model:
ATS
CTS
Model Year:
VIN:
from
to
2015
2019
from
to
Engine:
Transmission:
All
All
Involved Region or Country
North America and N.A. Export Regions
Additional Options (RPOs)
Equipped with ROOF-SUN, GLASS, SLIDING, ELEC (CF5) or ROOF-SUN, GLASS,
SLIDING, ELEC, TRANSPARENT GLASS FIXED (C3U)
Condition
Some customers may comment on hearing clicking, popping, tapping, creaking, flexing,
rubbing or rattle noises coming from the roof area during turns or driving over uneven
pavement.
Cause
The cause of the condition may be that the sunroof frame fasteners are loose, or
improperly torqued.
Correction
Verify the condition, then lower the headliner and re-torque critical sunroof housing
fasteners, following the appropriate Service Procedure below.
Copyright 2019 General Motors LLC. All Rights Reserved.
Page 2
May, 2019
Service Procedure
Bulletin No.: 19-NA-096
For Repairing a CTS Vehicle
1. It is only necessary to lower the headliner. Only do
those steps in the headliner replacement
procedure that will lower the headliner enough to
gain access to the sunroof frame fasteners. Refer
to Headlining Trim Panel Replacement in SI.
2. After lowering the headliner, refer to the
appropriate repair procedure below:
For Repairing an ATS Vehicle
5330127
Important: Do NOT increase the torque of the front or
rear fasteners.
1. Increase the torque of the 8 side fasteners (1).
Tighten
5330123
Important: Do NOT increase the torque of the front
fasteners.
1. Increase the torque of the 4 side fasteners (1).
Tighten
Tighten the fasteners to 15 Y (11 lb ft).
2. Increase the torque of the 2 rear fasteners (2).
Tighten
Tighten the fasteners to 25 Y (18 lb ft).
3. Reinstall the headliner. Refer to Headlining Trim
Panel Replacement in SI.
Tighten the fasteners to 15 Y (11 lb ft).
2. Reinstall the headliner. Refer to Headlining Trim
Panel Replacement in SI.
Parts Information
No parts are required for this repair.
Warranty Information
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
Labor
Operation
6080328*
Description
Labor Time
Lower Headliner, ReTorque Sunroof Module
Fasteners
2.1 hrs (ATS
Coupe)
2.5 hrs (ATS
Sedan)
2.7 hrs (CTS)
*This is a unique Labor Operation for Bulletin use only.
Version
1
Modified
Released May 06, 2019
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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