Service bulletin T-TT-0632-20 Rev

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10187253
Published by NHTSA	2021-02-16
Manufacturer's number	T-TT-0632-20 Rev
Manufacturer's date	2021-01-11
NHTSA component	SUSPENSION

NHTSA's summary

TT: Some 2018-2020 model year Tacoma vehicles may exhibit a front vibration when braking, typically experienced at speeds above 35 mph.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
TOYOTA TACOMA	2018, 2019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
T-SB-0045-23	2023-08-28. Service bulletin. TSB: Some 2019 ? 2023 model year Tacoma Double Cab vehicles may exhibit a whine noise from the rear of the vehicle. This condition may occur while driving around 50 mph (80 kph) at constant speed, slight acceleration, or slight deceleration. This condition may be caused by rear differential vibration transferring through the chassis and body
T-SB-0124-20 Rev	2022-12-19. Service bulletin. TSB: Some 2016 ? 2023 model year Tacoma vehicles equipped with an automatic transmission (6AT) may exhibit a vibration under deceleration (coasting or braking) typically between 30 ? 10 mph. This vibration is felt in the seat, floorboard, and/or steering wheel. Follow the Repair Procedure in this bulletin to address this condition
T-SB-0124-20	2021-02-16. Service bulletin. TSB: Some 2016 ? 2021 model year Tacoma vehicles equipped with an automatic transmission may exhibit a vibration under deceleration (coasting or braking) between 30 ? 10 mph. This vibration is felt in the seat, floorboard, and/or steering wheel. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0632-20	2020-11-23. Service bulletin. TT: Some 2018-2020 model year Tacoma vehicles may exhibit a front vibration when braking, typically experienced at speeds above 35 mph.
T-SB-0071-19_Rev	2020-05-11. Service bulletin. TSB: Some 2016 ? 2019 model year Tacoma vehicles equipped with an automatic transmission may exhibit a vibration under deceleration (coasting or braking) between 10 ? 30 mph. This vibration is felt in the seat, floorboard, and/or steering wheel. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0023-19-Rev	2019-07-08. Service bulletin. TSB: REVISION NOTICE May 17, 2019 Rev1: ? The Production Change Information section has been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0023-18. ? Applicability has been updated to include 2019 model year Tacoma vehicles. Service Bulletin No. T-SB-0023-18 is obsolete and any printed versions should be discarded. Some 2017 ? 2019 model year Tacoma vehicles with the BD20 differential may exhibit a noise or vibration from the rear of the vehicle at low speeds or while braking. This condition may be caused by excessive clearance between the brake drum and axle drum flange. Follow the Repair Procedure in this bulletin to address this condition.
K0B_Dealer Daily	2019-05-13. Service bulletin. Dealer Daily Message: Modified Vehicle Handling Process UPDATE Certain 2018 ? 2019 Model Year Tacoma and Tundra Millimeter Wave Radar Sensor Handling Procedure for Modified Vehicles Some vehicles may have modifications not authorized or approved by Toyota that make it impossible to perform the remedy for this Special Service Campaign. Toyota does not recommend installing aftermarket, non-Toyota authorized parts or accessories or Toyota parts not originally intended for the vehicle model and cannot evaluate how those modifications could affect a vehicle's operation. This is especially true for the PCS system, because it uses a camera and radar device that has an adjustment based on the vehicle?s original suspension design. It is best to restore the vehicle to its original condition prior to the remedy being performed. Any cost to do this is the customer?s responsibility. As a result, at this time, if a vehicle has modifications of the type noted below, Toyota does NOT RECOMMEND the remedy be performed with the vehicle in its current modified condition. Toyota cannot determine how modifications not authorized or evaluated by Toyota can affect the alignment of the PCS sensor. Please advise the owner that the vehicle?s special service campaign status will remain open, and the remedy will be performed FREE OF CHARGE when the vehicle is returned to a condition in which the remedy can be made.
T-SB-0023-18_Rev	2018-12-17. Service bulletin. TSB: REVISION NOTICE November 26, 2018 Rev2: ? The Repair Procedure section has been updated. July 2, 2018 Rev1: ? The Introduction, Production Change Information, and Repair Procedure sections have been updated. Any previous printed versions of this bulletin should be discarded. Some 2017 ? 2018 model year Tacoma vehicles with the BD20 differential (non-TRD) may exhibit a noise or vibration from the rear of the vehicle at low speeds or while braking. This condition may be caused by excessive clearance between the brake drum and axle drum flange. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0490-18	2018-12-17. Service bulletin. TT: Some vehicles may exhibit a squeak or rattle noise from the FR RH Body Mount Bushing when driving over uneven roads or bumps. Make sure to confirm that noise is coming from RH FR (No.1) Body Mount Bushing before proceeding.
T-TT-0490-18-Rev	2018-10-22. Service bulletin. TT: Some 2016-2018 model year Tacoma vehicles may exhibit a squeak or rattle noise from the FR RH (No.1) Body Mount Bushing when driving over uneven roads or bumps. Make sure to confirm that the noise is coming from the FR RH (No.1) Body Mount Bushing before proceeding.