RAM 1500 2019–2021 — technical service bulletin
Bulletin S2124000003 · NHTSA communication 10221171 · issued Apr 29, 2021
Technical service bulletin
communication type
Visibility
component
2019–2021
model years
15
vehicle entries
Official summary
A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11
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.