Chevrolet Silverado 1500 2019–2024 — technical service bulletin
Bulletin PIT5909B · NHTSA communication 10240804 · issued Jul 31, 2023
Technical service bulletin
communication type
Equipment
component
2019–2024
model years
20
vehicle entries
Official summary
This Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed.
Vehicles covered
- 2021 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500
- 2023 Chevrolet Silverado 1500
- 2024 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 2500
- 2023 Chevrolet Silverado 2500
- 2024 Chevrolet Silverado 2500
- 2022 GMC Hummer EV Pickup
- 2023 GMC Hummer EV Pickup
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
- 2023 GMC Sierra 1500
- 2024 GMC Sierra 1500
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
- 2022 GMC Sierra 2500
- 2023 GMC Sierra 2500
- 2024 GMC Sierra 2500
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.