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
- EVERY PURCHASE SAVES PETS. Every purchase makes it possible for BISSELL to continue our support of BISSELL Pet Foundation and its mission of saving pets in need.
- SAVE YOUR SANCTUARY: Tackle spills and pet stains while removing dander, dust, and pollen allergens.
- CLEANS MORE THAN CARPET: Spray, scrub, and suction to remove embedded dirt and stains from upholstery, car interiors, pet beds, and more.
- INCLUDES: 4” Tough Stain Tool with removeable lens, HydroRinse self-cleaning hose tool, and 8oz. BISSELL Little Green Formula.
- EASY STORAGE: Conveniently stores in small spaces - perfect for cabinets, closets, and more.
- SAME GREAT RESULTS, NOW SPRAYABLE - Fabric Clean Ready To Use easily dissolves and removes dirt, odors, and stains from automotive carpets, fabrics, and upholstery with hi-sudsing, deep penetrating foaming bubbles for professional detailing results.
- SO EASY-TO-USE - Just spray Fabric Clean Ready To Use and the foaming action floats the particles directly to the surface of the material for easy cleanup with a microfiber towel, brush or hot water extractor.
- PROFESSIONAL GRADE FORMULA - While low-grade cleaners leave carpets feeling wet, promote unsightly growth, and finish with a stiff crusty feeling, Fabric Clean is detergent free, low-moisture, and finishes with the soft feel of clean fabric.
- DESTROY MICRO-PARTICLES - Fabric Clean comes blended with the company’s patented elimination enzymes; the product actively eliminates foul smell at their source.
- THE GO TO BRAND IN CAR CARE - Beginners & professionals alike choose Chemical Guys, for the finest car care products, world class customer support and vast detailing knowledge; Chemical Guys is more than a brand it's a lifestyle with a worldwide following
- Carpet cleaner machine: Combining spray, brush, and suction functions, the Carpet cleaner delivers effective spot cleaning to effortlessly remove stains and dirt from various surfaces, simplifying your cleaning tasks.
- Within Reach: Upholstery cleaner equipped with a 1.2-meter hose and a 5-meter power cord, the carpet shampooer extends your cleaning range, making it easier to tackle hard-to-reach areas.
- Multi-Surface Cleaning: Designed for carpets, sofas, stairs, and car interiors, the upholstery cleaner machine thoroughly cleans a variety of surfaces.
- Dual Tanks: Couch cleaner featuring an 1800ml clean water tank and a 600ml dirty water tank, the carpet cleaning machine separates clean and dirty water for optimal cleaning performance and easy maintenance.
- Compact and Lightweight Design: Weighing just 3.84kg, the portable carpet cleaner is lightweight and easy to store. Rug cleaner’s user-friendly interface ensures simple operation, even for beginners.
- Powerful Cleaning (CWS21916SW) - Ready-to-use Chemical Guys fabric cleaner spray breaks down dirt, grime, and stains from carpets, seats, and floor mats while leaving behind a fresh citrus scent for a clean and revitalized interior
- Foaming Action Formula - This car upholstery cleaner features advanced foaming technology lifts and separates dirt from fibers, making it easy to wipe or vacuum away, leaving carpets and upholstery spotless without harsh scrubbing
- Safe For Multiple Surfaces - Designed for use on automotive interiors, home furniture, and office upholstery, making it a versatile car fabric cleaner for carpets, cloth seats, and floor mats everywhere
- Quick & Easy Application - Simply spray Chemical Guys upholstery cleaner directly onto the surface, agitate with a brush or cloth, and wipe away; this
- car cleaning spray eliminates the hassle of mixing or diluting, providing convenience
- Upgrade 18Kpa Powerful Suction:The 18Kpa spot cleaner can make residual stains invisible, leaving no dirt in any dead corner. Improve cleaning efficiency by 50% compared with 15Kpa, which can make carpet dry faster without bad smell.
- 2 in 1 Water Tank: The portable cleaner machines exclusive water tank design eliminating the need to frequently clean different water tanks and they all have 41oz. You can cleane the clean water tank and waste tank in the same time only with One hand.
- Not Only Carpet Cleaner: Spray, scrub, and suction to remove embedded dirt and stains for furniture, car interior, pets bed and mattress, also you can cleane anywhere just you want on the textile surface.
- What Include: We provide the necessary accessories for cleaning with the rug cleaner, High-density brush head, silicone brush, velvet brush and self cleaning brush head also specialized cleaning solution.
- Easy to Store: The small capet cleaner is easy to handle also store, the machines size is perfect for kitchen cabinets, living room closets, just also like sideboard and more.
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.