Chevrolet Silverado 2500 2020–2025 — technical service bulletin
Bulletin 24-NA-262 · NHTSA communication 11026024 · issued Jun 3, 2025
Technical service bulletin
communication type
Power Train
component
2020–2025
model years
24
vehicle entries
Official summary
This bulletin helps aid the tech in possible 10L100 transmission noise that may be normal or abnormal depending on the concern noted.
Vehicles covered
- 2020 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 2500
- 2022 Chevrolet Silverado 2500
- 2023 Chevrolet Silverado 2500
- 2024 Chevrolet Silverado 2500
- 2025 Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 3500
- 2021 Chevrolet Silverado 3500
- 2022 Chevrolet Silverado 3500
- 2023 Chevrolet Silverado 3500
- 2024 Chevrolet Silverado 3500
- 2025 Chevrolet Silverado 3500
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
- 2022 GMC Sierra 2500
- 2023 GMC Sierra 2500
- 2024 GMC Sierra 2500
- 2025 GMC Sierra 2500
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2023 GMC Sierra 3500
- 2024 GMC Sierra 3500
- 2025 GMC Sierra 3500
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.