Toyota 4RUNNER 2019–2020 — technical service bulletin
Bulletin T-SB-0079-21 · NHTSA communication 10202449 · issued Sep 2, 2021
Technical service bulletin
communication type
Power Train
component
2019–2020
model years
2
vehicle entries
Official summary
TSB: Some 2019 ? 2020 model year 4Runner vehicles may exhibit a grease leak from the edge of the inboard joint boot of a front drive shaft where the clamp is located. This condition may appear in vehicles with less than 25,000 miles with no apparent damage to the boot. Follow the Repair Procedure in this bulletin to address this condition.
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.