Service bulletins for the 2019 Toyota Tundra

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.

172 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
K0B_Dealer Packa	2019-06-24. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. Dealer Package: 5/29/2019 The ?Remedy? section has been updated with details regarding the availability ofthe ?DRCC notification label?. The involved vehicles are equipped with a Pre-Collision System (PCS) that may automatically apply the brakes if the system detects a potential collision. Due to the mounting of one of the system?s sensors, it is possible for water to enter the sensor. This can lead to PCS deactivation or inadvertent brake activation resulting in limited deceleration for a short duration of time.
K0B-Sensor MAC-0	2019-06-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Parts Hotwire: Certain millimeter wave radar sensor part numbers have been placed on MAC.These parts have been placed on MAC to help ensure that the sensor has the correct software version and that sealer has been applied prior to installation on a vehicle. The following part numbers have been placed on MAC.
K0B-CPOR-032819	2019-06-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Dealer Letter: Part deployment details In an effort to assist dealers in performing campaign K0B on a customer?s first visit, Toyota is deploying stock of EPT Sealers, part numbers 88278-0C010 and 88278-0C020 to all dealers. Dealers will receive enough parts to repair 2 days-worth of their peak demand based on the quantity of vehicles registered in their area. Peak demand has been estimated based on historical campaign demand. Dealers should continue to place orders following the CPOR process for this campaign to replenish their stock. For additional details on the CPOR process, refer to the MAC report. Parts are stocked at the Parts Distribution Centers and are available in one day from order placement.
K0B-MWRS-TI-0328	2019-06-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Technical Instructions: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN K0B MILLIMETER WAVE RADAR SENSOR CERTAIN: 2018 ? 2019 TACOMA 2018 ? 2019 TUNDRA
K0B_Dealer Packa	2019-05-13. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; EQUIPMENT. Dealer Package: The involved vehicles are equipped with a Pre-Collision System (PCS) that may automatically apply the brakes if the system detects a potential collision. Due to the mounting of one of the system?s sensors, it is possible for water to enter the sensor. This can lead to PCS deactivation or inadvertent brake activation resulting in limited deceleration for a short duration of time. Please refer to the Owner?s Manual for additional information regarding the PCS system operation.
T-SB-0036-19	2019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. TSB: Some 2018 ? 2019 model year Tundra vehicles equipped with integrated trailer brake controllers may exhibit an intermittent ?Trailer Disconnected? message in the combination meter while towing a trailer. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0484-18-Rev	2019-03-25. Service bulletin. ELECTRICAL SYSTEM. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.
T-TT-0414-16-Rev	2019-03-25. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; ELECTRICAL SYSTEM. TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone. ? Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ? Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
T-SB-0197-17_Rev	2018-06-18. Service bulletin. ELECTRICAL SYSTEM. TSB: REVISION NOTICE May 08, 2018 Rev1: * Applicability has been updated to include 2019 model year Toyota vehicles. Any previous printed versions of this bulletin should be discarded. Hybrid vehicles are equipped with two types of batteries: * Hybrid Vehicle (HV) battery - Auxiliary (12V) battery If the hybrid vehicle is put into storage, the State-Of-Charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary. Perform the following maintenance service for the HV battery and auxiliary battery. NOTE - BEFORE disconnecting the auxiliary battery, confirm the shift lever is in the "P" position and apply the parking brake completely. The shift lever CANNOT be shifted from the "P" position with the auxiliary battery disconnected. * If the negative (-) terminal of the auxiliary battery is reconnected, even if the power button is in the Start mode, the hybrid system may NOT start. In this case, push the Power button and select the Start mode again to start the hybrid system (the Ready light is ON). If the hybrid system still does NOT start (the Ready light is OFF), refer to the Repair Manual.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.