NHTSA ID Number: 10198870
Manufacturer Communication Number: 21NA079
Summary
This technical bulletin provides a procedure to replace the lower seat frame to correct the condition of Pop Noise Heard During Seat Travel and/or Inadequate Seat Rearward Travel due to a supplier installation error.
4 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
CHEVROLET | SILVERADO 1500 | 2021 |
| CHEVROLET | SILVERADO 2500 | 2021 |
| GMC | SIERRA 1500 | 2021 |
| GMC | SIERRA 2500 | 2021 |
Condition
Some customers may comment on hearing a pop noise during seat travel and/or inadequate seat rearward travel.
Cause
The cause of the condition may be an incorrect right hand seat track.
Correction
Replace the lower seat frame assembly by following the procedure below.
Parts Information
| Description | Part Number | Qty |
| Frame, F/Seat Cush (Manual) | 13526540 | 1 |
| 13526541 | 1 |
SEOCONTENT-START
Service Bulletin Bulletin No.: 21-NA-079
Date: May, 2021
TECHNICAL
Subject: Pop Noise Heard During Seat Travel and/or Inadequate Seat Rearward Travel
Brand: Model:
Model Year: Build Breakpoint Date:
Engine:
Additional
Options
from to from to (RPOs):
Chevrolet
Silverado 1500
Silverado
2500/3500 2021 2021 SOP November
20, 2020 All AFE
GMC
Sierra 1500
Sierra 2500/3500
Involved Region or Country North America, Middle East, Israel, Chile, Paraguay, Uruguay, Thailand, Australia and
New Zealand.
Condition Some customers may comment on hearing a pop noise during seat travel and/or
inadequate seat rearward travel.
Cause The cause of the condition may be an incorrect right hand seat track.
Correction Replace the lower seat frame assembly by following the procedure below.
Service Procedure
If you encounter a vehicle with the above concern,
replace the front seat cushion frame. Refer to Front
Seat Cushion Frame Replacement in SI.
Parts Information
Use the VIN and refer to the GM Electronic Parts
Catalog (EPC) to determine the proper part number to
order.
Causal
Part
Description Part
Number
Qty
X Frame, F/Seat
Cush (Manual)
13526540 1
13526541 1
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
7020180 Front Seat Cushion Frame Replacement Use Published Labor
Operation Time
Version 1
Modified Released May 03, 2021
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-079
Date: May, 2021
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