19-NA-257

Bulletin No.:
Service Bulletin
Date:
19-NA-257
August, 2023
TECHNICAL
Subject:
Brand:
Chevrolet
Pickup Box Out of Alignment
Model:
from
to
Silverado 1500
(New Model)
2019
2019
Silverado 1500
2020
2021
2022
2022
Silverado 1500
2023
2024
Sierra 1500
(New Model)
2019
2019
Sierra 1500
2020
2021
Sierra 1500 (LIMITED RPO J21,
12th VIN Digit = 4
or less)
2022
2022
2023
2024
Silverado 1500 –
(LTD, RPO J21, 12th
VIN Digit = 4 or less)
Silverado 1500 –
(RPO J22, 12th VIN
Digit = 5 or greater)
GMC
Model Year:
Sierra 1500 - (RPO
J22, 12th VIN Digit =
5 or greater)
Sierra 1500
Copyright 2023 General Motors LLC. All Rights Reserved.
VIN:
from
Engine:
Transmission:
All
All
to
Page 2
Involved Region or Country
August, 2023
Bulletin No.: 19-NA-257
North America, Middle East, Chile, Paraguay, Uruguay, Thailand, Australia, New
Zealand, and Israel
Condition
5442974
The pickup box appears to be out of alignment from side to side of the truck. The
condition is more noticeable from rear of truck, down the side.
Cause
The cause of the condition may be the pickup box was misaligned from the assembly
plant.
Correction
Adjust the pickup box to within tolerance, following the steps in the Service Procedure
below.
Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
5442975
Note: Measure the cab to box distance on both sides
of the vehicle.
1. Using a straight edge on the side of the cab corner
at the upper body line, measure the distance to the
pickup box. The box should be sub-flush with cab
and within 2.5 mm (0.10 in) total difference side
to side.
• If the box is sub-flush AND the distances ARE
within the 2.5 mm (0.10 in) range side to side,
no box alignment is necessary.
• If the box IS NOT sub-flush AND the distances
ARE NOT within the 2.5 mm (0.10 in) range
side to side, continue on to the box alignment
procedure.
Bulletin No.: 19-NA-257
August, 2023
Page 3
5442976
2. To prevent damage to the painted surfaces, apply
tape/protection to the areas where the pickup box,
cab and rear bumper would meet,
4998458
3. Remove the 4 rear pickup box bolts (1) and clean
any sealer that may prevent movement between
the bolt and frame. Reinstall the bolts and hand
turn a couple of turns.
Page 4
August, 2023
Bulletin No.: 19-NA-257
4998459
Note: Long pickup box shown above, has 4 front bolts,
short box only has 2.
4. Remove the front pickup box bolts (1) and clean
any sealer that may prevent movement between
the bolt and frame. Reinstall the bolts and hand
turn a couple of turns.
Note: If box alignment is limited due to locating pins in
the bed preventing correct alignment, the front locating
pin can be removed.
5. Remove the front bed to frame locator pin, as
necessary.
6. Align the pickup box to within specifications. Box
should be sub-flush with cab and within 2.5 mm
(0.10 in) total difference side to side.
7. Tighten all pickup box bolts. Refer to Fastener
Specifications in the Body Repair section in SI, for
proper Torque specifications
8. Remove any tape/protection that was applied.
Parts Information
No parts are required for this repair.
5442977
Bulletin No.: 19-NA-257
August, 2023
Page 5
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
1481268*
Pickup Box Alignment
0.4 hr
*This is a unique Labor Operation for Bulletin use only.
Version
4
Modified
Released November 19, 2019
Revised December 21, 2020 – Added 2021 Model Year and Added Israel to Export
Countries
Revised May 18, 2022 — Added 2022 Model Year, Australia, and New Zealand Regions.
Revised July 27, 2023 — Added 2023 and 2024 Model Years.
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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