RAM 1500 2019–2027 — technical service bulletin
Bulletin 9100845 · NHTSA communication 11034339 · issued Jun 17, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2019–2027
model years
9
vehicle entries
Official summary
For concerns of an inoperative A/C system (no relay activation, no compressor engagement, or no response to commands), technicians need to utilize Star Online Publication S2624000007 prior to component replacement. Failure to follow this star online publication may result in repeat repairs or misdiagnosis.
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.