RAM 1500 2026 — technical service bulletin
Bulletin 21-062-26 · NHTSA communication 11037573 · issued Sep 25, 2026
Technical service bulletin
communication type
Power Train
component
2026
model years
1
vehicle entries
Official summary
Transmission Rattle Customers may comment on the following: SYMPTOM: ● Rattle noise coming from the transmission. This bulletin involves inspecting and possibly tightening the transmission oil heater mounting nuts to proper specification.
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.