RAM 4500 2019–2023 — technical service bulletin
Bulletin 2308023 · NHTSA communication 10241129 · issued Jun 28, 2023
Technical service bulletin
communication type
Visibility
component
2019–2023
model years
10
vehicle entries
Official summary
Intermittently Poor HVAC Performance Customers may comment on the following: ? Intermittently the HVAC blow feel/output maybe reduced. This issue only happens in temperature that are just below freezing and snowing. This bulletin involves removing the right side rubber flaps from the cowl baffles.
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.