Service bulletin ZKK_Dealer Email

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	10166000
Published by NHTSA	2019-10-15
Manufacturer's number	ZKK_Dealer Email
Manufacturer's date	2019-09-11
NHTSA component	SERVICE BRAKES

NHTSA's summary

Dealer Email: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 - 2014 model year Camry Hybrid vehicles and certain 2013 - 2015 model year Avalon Hybrid Vehicles. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. Although the Brake Booster and Brake Booster Pump Assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to certain internal malfunctions of the Brake Booster and Brake Booster Pump Assemblies in some of the subject vehicles. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.

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

Brakes

Vehicles listed
TOYOTA AVALON	2013, 2014, 2015
TOYOTA CAMRY	2012, 2013, 2014

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

Recalls for the same vehicles and component
2015521	2015-11-03. Brakes

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TTT063620	2022-06-21. Service bulletin. 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-0636-20 Rev	2021-04-19. Service bulletin. 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-0636-20	2021-02-16. Service bulletin. 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-0636-20	2021-02-01. Service bulletin. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
ZKK - Dealer Pac	2020-09-14. Service bulletin. DL: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 - 2014 model year Camry Hybrid vehicles and certain 2013 - 2015 model year Avalon Hybrid Vehicles. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. Although the Brake Booster and Brake Booster Pump Assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to certain internal malfunctions of the Brake Booster and Brake Booster Pump Assemblies in some of the subject vehicles.
ZKK - Dealer Pac	2020-09-14. Service bulletin. DL: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 - 2014 model year Camry Hybrid vehicles and certain 2013 - 2015 model year Avalon Hybrid Vehicles. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. Although the Brake Booster and Brake Booster Pump Assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to certain internal malfunctions of the Brake Booster and Brake Booster Pump Assemblies in some of the subject vehicles.
ZKK_Region Lette	2019-10-15. Service bulletin. Region Letter: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 - 2014 model year Camry Hybrid vehicles and certain 2013 - 2015 model year Avalon Hybrid Vehicles. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. Although the Brake Booster and Brake Booster Pump Assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to certain internal malfunctions of the Brake Booster and Brake Booster Pump Assemblies in some of the subject vehicles. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKK_Region Email	2019-10-15. Service bulletin. Region Email: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 -2014 model year Camry Hybrid vehicles and certain 2013 - 2015 model year Avalon Hybrid Vehicles. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. Although the Brake Booster and Brake Booster Pump Assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to certain internal malfunctions of the Brake Booster and Brake Booster Pump Assemblies in some of the subject vehicles. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement
ZKK_Dealer Packa	2019-10-15. Service bulletin. Dealer Package: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 - 2014 model year Camry Hybrid vehicles and certain 2013 - 2015 model year Avalon Hybrid Vehicles. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. Although the Brake Booster and Brake Booster Pump Assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to certain internal malfunctions of the Brake Booster and Brake Booster Pump Assemblies in some of the subject vehicles. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
T-SB-0130-19	2019-10-15. Service bulletin. TSB: Some 2012 ? 2014 model year Camry Hybrid, and 2013 ? 2015 model year Avalon Hybrid vehicles may exhibit a condition where the brake, ABS, and/or TRAC warning lights are on and/or a Check VSC message displays. One or more of the following specific Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256, or C1253 will be stored in the vehicle?s memory to be used as verification. This condition may be caused by a small internal brake fluid leak in the brake booster assembly with master cylinder. Follow the Repair Procedure in this bulletin to address this condition.