Please see Tech Tip T-TT-0651-21
2020-2021 Toyota Tacoma
This Tech Tip applies to Tacoma vehicles equipped with a BD20 rear differential – Part Number: 41110-04130. Some 2020-2021 model year Tacoma customers may be concerned with a whine noise heard from the rear...
Please see T-SB-0008-21
VDS(s): AZ1FB, BZ1FB, CZ1FB, DZ1FB, EZ1FB, FZ1FB, GZ1FB, HZ1FB, JZ1FB
VDS(s): FZ1AK, KZ1AK
(Please see this Post to determine VDS and WMI's)
Some 2021 model year Avalon, Highlander, and Camry vehicles...
Please see Tech Tip T-TT-0589-19
*Customers may complain of a whine noise upon starter engagement.
*The whine noise may be accentuated when holding the key to start the engine; Alternately, the noise may be diminished by using the...
Please see T-SB-0074-19 Revision 1
2014-2019 Toyota 4Runner
Some 2014 – 2019 model year 4Runner vehicles may exhibit a whine or groan noise from the rear of the vehicle. This condition may occur while driving around 40 – 60 mph at a consistent speed, slight...
*** This condition has a Transmission Warranty Extension called ZJC. Please see here...
Please see T-SB-0160-18 Revision 1
2017-2018 Toyota Highlander and Sienna
May 11, 2021 Rev1
The Introduction, Required Tools & Equipment, and Repair...
Some 2016 – 2018 model year Tacoma Double Cab 4WD vehicles equipped with a BD22 rear
differential may exhibit a whine type noise from the rear of the vehicle. This condition may occur
while driving around 50 mph at constant speed, slight acceleration, or slight deceleration and may
be caused by...
Hearing reports of the new 8 Speed transmission transmission in the 2017 Highlander and Sienna having issues with whine noise and/or shift (movement) issues. Something possible with the final drive pinion hasn’t been stacked and is coming loose. If you have an issue with your vehicle, please let...
Some 2016 – 2017 model year Tacoma vehicles equipped with the 6 speed manual transmission
(RC62F) may exhibit a high pitch whine noise when driving in 5th or 6th gear. A NEW heat insulator
is available to address this condition. See Technical Service Bulletin 0186-17 for details and procedure...