Toyota 4RUNNER 2014–2019 — technical service bulletin
Bulletin T-SB-0074-19_Rev · NHTSA communication 10173738 · issued Mar 2, 2020
Technical service bulletin
communication type
Suspension
component
2014–2019
model years
6
vehicle entries
Official summary
TSB: Some 2014 ? 2019 model year 4Runner vehicles may exhibit a whine/groan noise from the rear of the vehicle. This condition may occur while driving at approximately 40 ? 60 mph at a consistent speed, slight acceleration, or slight deceleration. This condition may be caused by rear differential vibration transferring through the chassis and body. Follow the Repair Procedure in this bulletin to improve 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.