21-NA-110

Bulletin No.:
Service Bulletin
Date:
21-NA-110
March, 2023
INFORMATION
Subject:
Information on GM Accessories - Instructions on Claim Submission on
Dealer-Replaced Tonneau Covers During Warranty Period
Brand:
Model:
Silverado 1500
(New Model)
Chevrolet
Model Year:
from
to
2019
2019
2020
2021
2019
2019
2020
2021
VIN:
from
Engine:
Transmission:
All
All
to
Silverado 1500
Silverado
2500HD/3500HD
Sierra 1500
(New Model)
GMC
Sierra 1500
Sierra
2500HD/3500HD
Involved Region or Country
North America, Canada, IPC Middle East, Israel, Palestine, Chile, Paraguay, Uruguay,
Thailand, Australia and New Zealand.
Information
Note: This bulletin pertains only to vehicles that had an
original Genuine GM tonneau cover installed.
For OEM Tonneau cover replacement under warranty,
GM P/N’s are being discontinued (see chart below). As
these GM part numbers sell down, GM will be replacing
these part numbers with IBP* part numbers, both for
new sales and for warranty replacements. For a
cross-reference of these parts lists, see the Parts
Information table below. However, using these part
numbers will cause errors in claim submissions to
GWM. Please reference instructions below for claim
support.
Note: For fading/discolored of VOZ, GM Accessory
Tonneau covers, refer to Bulletin 20-NA-141 for proper/
validated service repairs. Replacing these tonneau
covers is not the proper repair for fading/discoloration
and could be subject to chargeback or debit.
For Genuine GM Accessory Part (LPO*) Originally
Installed during PDI
For vehicles with RPO 63B/VOZ on the build, please
submit your warranty claim using labor code 0522230
and the corresponding IBP part # (see below). This will
result in an “51 Service Agent is not allowed to submit
part product line 32” error, which will need to be
authorized by the Warranty Support Center.
Copyright 2023 General Motors LLC. All Rights Reserved.
For Genuine GM Accessory Part Purchased as an
ACO* (over the counter)
For vehicles with add on option #92 or #93 in the
“Added Option Codes” in IVH – verify that the original
install was the Genuine GM part numbers (see below).
If so, submit claim the same way as an LPO.
If not listed as LPO or as an Added Option in IVH,
dealer will have to review install RO or receive receipt
information from customer.
If original install was IBP part
Contact the IBP supplier for warranty coverage.
Dealership labor for processing warranty repairs
approved by the accessory manufacturer may be
claimed through GWM. Refer to bulletin # 22–NA-244.
*LPO – Limited Production Option, Ordered with the
vehicle, not an over the counter sale.
*ACO – Accessory Catalog Offering, Over the
counter sale.
*IBP – Integrated Business Partner
Page 2
March, 2023
Bulletin No.: 21-NA-110
Parts Information
RPO
GM ACCESSORY
TONNEAU
IBP
REPLACEMENT
63B
84815929
84815930
19416976
63B
84815931
84815932
19416977
63B
84815933
84815934
19418643
63B
84791288
19421162
VOZ
84791287
19433570
VOZ
84786353
19433568
VOZ
84786354
19433566
VOZ
84786355
19433569
Warranty Information
For vehicles repaired under applicable warranty, use:
Labor Operation
Description
Labor Time
0522230
Pickup Box Tonneau Cover Replacement
Use Published Labor
Operation Time
Version
2
Modified
Released May 06, 2021
Revised March 07, 2023 — Updated Part numbers and added Note.
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.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION