RAM 1500 2019–2021 — technical service bulletin
Bulletin 2307423 · NHTSA communication 10241110 · issued Jun 21, 2023
Technical service bulletin
communication type
Structure
component
2019–2021
model years
3
vehicle entries
Official summary
Water Leak at Center High Mounted Stop Lamp (CHMSL) Warranty Extension XG1 Customers may experience one or more of the following: ? Water on the headliner. ? Water at the back of the cab. ? A leak from the third brake/cargo light/CHMSL. This bulletin involves replacing the CHMSL assembly.
Vehicles covered
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.