RAM 1500 2021 — technical service bulletin
Bulletin 0300121 · NHTSA communication 10220991 · issued Mar 31, 2021
Technical service bulletin
communication type
Power Train
component
2021
model years
1
vehicle entries
Official summary
Outer Halfshaft Axle Boots Leaking Grease This bulletin involves inspecting the both outer halfshaft axle boots for tears. The customer or technician may experience a axle grease leaking out of one or both of the outer halfshaft axle boots, this can happen within 804 Km (500 miles).
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.