Service bulletin ZKC_Dealer Packa

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	10162740
Published by NHTSA	2019-07-15
Manufacturer's number	ZKC_Dealer Packa
Manufacturer's date	2019-06-06
NHTSA component	SERVICE BRAKES

NHTSA's summary

Dealer Package: Toyota has received reports regarding the Brake Actuator Assembly and Brake Booster Pump Assembly on certain 2008 - 2010 model year Highlander Hybrid vehicles. These reports have indicated certain internal malfunctions of the Brake Actuator Assembly. Although the Brake Actuator Assembly and Brake Booster Pump Assembly are covered by Toyota?s New Vehicle Limited Warranty for normal warranty coverage period, 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 the certain internal malfunctions of the brake booster assemblies. 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 HIGHLANDER HYBRID	2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)

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
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-SB-0014-22	2022-04-18. Service bulletin. TSB: This Service Bulletin includes procedures to replace damaged or loose front carpet floor retainer(s) without replacing the carpet assembly. Follow the Repair Procedure in this bulletin to replace the loose or damaged carpet floor retainer(s).
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.
ZKC_Toyota POL19	2019-09-16. Service bulletin. Warranty Enhancement Program: Toyota has received reports regarding the Brake Actuator Assembly and Brake Booster Pump Assembly indicating certain internal malfunctions.
ZKC_Dealer Packa	2019-09-16. Service bulletin. Dealer Package: Toyota has received reports regarding the Brake Actuator Assembly and Brake Booster Pump Assembly on certain 2008 - 2010 model year Highlander Hybrid vehicles. These reports have indicated certain internal malfunctions of the Brake Actuator Assembly. Although the Brake Actuator Assembly and Brake Booster Pump Assembly are covered by Toyota?s New Vehicle Limited Warranty for normal warranty coverage period, 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 the certain internal malfunctions of the brake booster assemblies. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKC_Toyota POL19	2019-07-15. Service bulletin. Customer Support Program: Toyota has received reports regarding the Brake Actuator Assembly and Brake Booster Pump Assembly indicating certain internal malfunctions.
ZKC_Region Lette	2019-07-15. Service bulletin. Region Letter: Toyota has received reports regarding the Brake Actuator Assembly and Brake Booster Pump Assembly on certain 2008 - 2010 model year Highlander Hybrid vehicles. These reports have indicated certain internal malfunctions of the Brake Actuator Assembly. Although the Brake Actuator Assembly and Brake Booster Pump Assembly are covered by Toyota?s New Vehicle Limited Warranty for normal warranty coverage period, 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 the certain internal malfunctions of the brake booster assemblies. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
ZKC_Dealer Email	2019-07-15. Service bulletin. Dealer Email: Toyota has received reports regarding the Brake Actuator Assembly and Brake Booster Pump Assembly on certain 2008 - 2010 model year Highlander Hybrid vehicles. These reports have indicated certain internal malfunctions of the Brake Actuator Assembly. Although the Brake Actuator Assembly and Brake Booster Pump Assembly are covered by Toyota?s New Vehicle Limited Warranty for normal warranty coverage period, 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 the certain internal malfunctions of the brake booster assemblies. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.