# Service bulletin K0B\_Non\-Toyota\-A

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.

- Type: Service bulletin
- NHTSA id: 10161509
- Published by NHTSA: 2019\-06\-24
- Manufacturer's number: K0B\_Non\-Toyota\-A
- Manufacturer's date: 2019\-05\-02
- NHTSA component: FORWARD COLLISION AVOIDANCE

## NHTSA's summary

Non\-Toyota\-Approved Modification \- Owner Acknowledgment Form: \*\*Non\-Toyota\-Approved Modification \- Owner Acknowledgment Form\*\* Certain 2018 \-2019 MY Tacoma and Tundra \- Millimeter Radar Wave Sensor. Your vehicle is involved in Special Service Campaign K0B. It is 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 brief and limited vehicle slowing. The remedy involves an update to the PCS software and application of sealer to the millimeter wave radar sensor in the front grille. Also, in the rare case that the vehicle is currently exhibiting the condition, dealers will diagnose the sensor and replace it, as necessary, FREE OF CHARGE. However, because your vehicle has non\-Toyota\-approved modifications as noted below, PCS and Dynamic Radar Cruise Control \(DRCC\) may not operate as designed regardless if this free remedy is performed. For example: ?PCS may activate even if a collision is not likely. ?PCS may not recognize a vehicle or a pedestrian when a preceding vehicle or pedestrian is ahead.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10161509-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10161509-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Driver assistance

## Vehicles listed

- 2018 to 2019 TOYOTA TACOMA
- 2018 to 2019 TOYOTA TUNDRA

## Recalls for the same vehicles and component

- [18V122000](/recalls/nhtsa/18V122000.md), 2018-02-20: ELECTRONIC STABILITY CONTROL \(ESC\)

## Other bulletins for the same vehicles and component

- [TSB002620](/bulletins/10247828.md), 2023-12-26, Service bulletin: UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE; AIR BAGS. TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre\-collision System \(PCS\) and Dynamic Radar Cruise Control \(DRCC\) as part of the Toyota Safety Sense \(TSS\) package. The PCS and DRCC systems are designed to help mitigate a potential collision and maintain a pre\-determined traveling distance. It is recommended to disable the PCS and DRCC systems on vehicles that have been modified \(ride height, oversized wheels/tires, brush bars, etc.\) in a way that potentially disrupts the functionality of these systems. Vehicle owner?s written consent is required before performing the calibration to permanently disable the PCS and DRCC systems. Follow the Repair Procedure in this bulletin to disable the PCS and DRCC systems.
- [T\-SB\-0045\-23](/bulletins/10241402.md), 2023-08-28, Service bulletin: BACK OVER PREVENTION; SUSPENSION; POWER TRAIN. 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
- [TTT063620](/bulletins/10214323.md), 2022-06-21, Service bulletin: BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care \(TCMC\) brake pads may exhibit a groan or squeak noise in various driving conditions
- [T\-TT\-0663\-21](/bulletins/10202452.md), 2021-10-25, Service bulletin: LANE DEPARTURE; VISIBILITY. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
- [K0B\-MWRS\-TI\-0328](/bulletins/10197447.md), 2021-06-14, Service bulletin: EQUIPMENT; LANE DEPARTURE: SENSING SYSTEM: RADAR; EQUIPMENT ADAPTIVE/MOBILITY. Millimeter wave radar sensor.
- [K0B\-RL\-032819](/bulletins/10197446.md), 2021-06-14, Service bulletin: SERVICE BRAKES, HYDRAULIC; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR. Pre\-collision system may automatically apply the brakes if the system detects a potential collision.
- [K0B\-MAC\-032819](/bulletins/10197445.md), 2021-06-14, Service bulletin: FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR; ELECTRICAL SYSTEM:SOFTWARE. Based on the inspection results in the K0B technical instructions, the millimeter wave radar sensor may require replacement.
- [K0B\-DP\-032819](/bulletins/10197444.md), 2021-06-14, Service bulletin: FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR; SERVICE BRAKES, HYDRAULIC. Pre\-collision system may automatically apply the brakes if the system detects a potential collision.
- [K0B\-0328191](/bulletins/10197442.md), 2021-06-14, Service bulletin: FORWARD COLLISION AVOIDANCE; SERVICE BRAKES, HYDRAULIC. Pre\-collision system may automatically apply the brakes if the system detects a potential collision.
- [K0B\-032819](/bulletins/10197441.md), 2021-06-14, Service bulletin: SERVICE BRAKES, HYDRAULIC; EQUIPMENT; FORWARD COLLISION AVOIDANCE. Pre\-collision system may automatically apply the brakes if the system detects a potential collision.

JSON: [/v1/bulletins/10161509](/v1/bulletins/10161509)

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