Service Bulletin

Bulletin No.:

17-NA-308

Date:

June, 2020

TECHNICAL
Subject:

Carpet Damage, Seat Mounting Stud Wear Through, Hole in Second Row (Intermediate)
Carpet

Brand:

Model:

Cadillac

Model Year:
from

to

Escalade Models

2011

2020

Chevrolet

Suburban
Tahoe

2011

2020

GMC

Yukon Models

2011

2020

Involved Region or Country

VIN:
from

Engine:

Transmission:

All

All

to

North America, Middle East, Israel, South America, Thailand, Japan, South Korea,
Europe, Russia and China.

Condition

4867790

Some customers may comment that studs are wearing through (1) the second row
(intermediate) carpet, around the base of the second row seats. This may be most
noticeable on vehicles with second row bucket seats.
Cause

This condition may be due to the interface design of the intermediate carpet to the seat
studs, which may allow the studs to wear holes in the carpet.

Correction

Replace the intermediate carpet and add protective hose to the seat studs, following the
steps in the Service Procedure below.

Copyright 2020 General Motors LLC. All Rights Reserved.

Page 2

June, 2020

Bulletin No.: 17-NA-308

Service Procedure

4872415
4867792

Note: There are two different size seat studs; 8 mm (1)
used for long side bench to short side bench seat
attachment (present on right side bucket seat), and 12
mm (2) used for seat to floor attachment.
1. Inspect the intermediate carpet for wear through
from seat studs and mark the affected stud
locations.

4867796

2. Remove the damaged intermediate carpet (1).
Refer to Intermediate Floor Panel Carpet
Replacement in SI.

3. For any affected studs, provide protection of the
new carpet as follows:
3.1. Measure and cut a section of low pressure
reinforced fuel or EVAP hose (3) for each
affected stud to be slightly taller than the
exposed portion of the stud, using the
following hose sizes:
• 5/16 inch ID for 8 mm studs
• 7/16 inch ID for 12 mm studs
3.2. Measure and cut a section of low pressure
reinforced heater hose (4) for each affected
stud to be slightly taller than the exposed
portion of the stud, using the following hose
sizes:
• 5/8 inch ID for 8 mm studs (to fit around the
fuel /EVAP hose)
• 3/4 inch ID for 12 mm studs (to fit around
the fuel /EVAP hose) Note: 3/4 inch ID
hose will also fit around the nut – add
length as appropriate.

Bulletin No.: 17-NA-308

June, 2020

Page 3

Causal
Part

Description

Length

Qty

2 inch or
less,
per stud

As needed

5/16 inch
Reinforced Low
Pressure Fuel or
EVAP Hose

N/A*

7/16 inch
Reinforced Low
Pressure Fuel or
EVAP Hose
5/8 inch
Reinforced
Heater Hose
3/4 inch
Reinforced
Heater Hose

4867799

Note: Ensure the carpet is seated properly at all seat
stud locations, and also ensure the carpet is aligned/
seated properly under all trim, and to the front and rear
carpet.
4. Install the new intermediate carpet. Refer to
Intermediate Floor Panel Carpet Replacement
in SI.

Parts Information
Note: Prior to installing carpet, inspect the service part
for possible color variation from the original and
adjoining carpets. Refer to Bulletin # 19-NA-125 for
resolution of any color match issues.

*For warranty transactions, DO NOT mark this/these
parts as the Causal Part. Enter the word “Bulletin” in the
Causal Part Description free-flow text field.

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

Description

Labor Time

1480898*

Replace Intermediate
Carpet and Add Protective
Hose to Seat Studs

0.7 hr

*This is a unique Labor Operation for Bulletin use only.

Use the vehicle identification number (VIN), SI, and
the GM Electronic Parts Catalog to determine the
proper carpet to order.
Locally obtain bulk hose, per length necessary.
Version

3

Modified

Released September 27, 2017
Revised June 05, 2019 – Added 2018 and 2019 Model Years.
Revised June 17, 2020 – Added 2020 Model Year

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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