Service bulletin ZG2-ZG3_Warranty

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	10134113
Published by NHTSA	2018-04-23
Manufacturer's number	ZG2-ZG3_Warranty
Manufacturer's date	2016-06-30
NHTSA component	STEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

Warranty Policy Bulletin (POL16-05): The class action settlement relates to certain 2009 and 2010 Toyota Corolla vehicles (excluding the XRS grade) equipped with an electric power steering (EPS) system, which has been alleged to ?cause vehicles to wander or drift from center at highway speeds and/or suddenly veer to one direction during normal use.? Toyota denies these allegations and believes the concerns raised in the lawsuit are about customer preference for on-center steering feel in the vehicles.

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

Steering, Power steering

Vehicles listed
TOYOTA COROLLA	2009, 2010

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
ZG2-ZG3-Expired-	2018-12-03. Service bulletin. Dealer Package: September 11, 2018 A watermark has been added to the Dealer Letter to indicate that ZG2/ZG3 expired on September 10, 2018 The class action settlement relates to certain 2009 and 2010 Toyota Corolla vehicles (excluding the XRS grade) equipped with an electric power steering (EPS) system, which has been alleged to ?cause vehicles to wander or drift from center at highway speeds and/or suddenly veer to one direction during normal use.? Toyota denies these allegations and believes the concerns raised in the lawsuit are about customer preference for on-center steering feel in the vehicles. Toyota has determined that turning the page on this legal issue is in the best interests of the company and its employees, dealers and customers. In keeping with its core principles, Toyota has structured this agreement in ways that work to put customers first. This CSP was created as part of the implementation of the settlement.
ZG2-ZG3_Dealer L	2018-04-23. Service bulletin. Dealer Letter: The class action settlement relates to certain 2009 and 2010 Toyota Corolla vehicles (excluding the XRS grade) equipped with an electric power steering (EPS) system, which has been alleged to ?cause vehicles to wander or drift from center at highway speeds and/or suddenly veer to one direction during normal use.? Toyota denies these allegations and believes the concerns raised in the lawsuit are about customer preference for on-center steering feel in the vehicles.
ZG2-ZG3_Dealer L	2018-04-23. Service bulletin. Dealer Letter email: The class action settlement relates to certain 2009 and 2010 Toyota Corolla vehicles (excluding the XRS grade) equipped with an electric power steering (EPS) system, which has been alleged to "cause vehicles to wander or drift from center at highway speeds and/or suddenly veer to one direction during normal use." Toyota denies these allegations and believes the concerns raised in the lawsuit are about customer preference for on-center steering feel in the vehicles.
ZG2-ZG3_Region L	2018-04-23. Service bulletin. Region Letter: The class action settlement relates to certain 2009 and 2010 Toyota Corolla vehicles (excluding the XRS grade) equipped with an electric power steering (EPS) system, which has been alleged to "cause vehicles to wander or drift from center at highway speeds and/or suddenly veer to one direction during normal use." Toyota denies these allegations and believes the concerns raised in the lawsuit are about customer preference for on-center steering feel in the vehicles.
POL-16-05	2018-04-23. Service bulletin. Region Letter email: The class action settlement relates to certain 2009 and 2010 Toyota Corolla vehicles (excluding the XRS grade) equipped with an electric power steering (EPS) system, which has been alleged to "cause vehicles to wander or drift from center at highway speeds and/or suddenly veer to one direction during normal use." Toyota denies these allegations and believes the concerns raised in the lawsuit are about customer preference for on-center steering feel in the vehicles.
POL16-05	2017-02-15. Service bulletin. WARRANTY POLICY BULLETIN (POL16-05): THE CLASS ACTION SETTLEMENT RELATES TO CERTAIN 2009 AND 2010 TOYOTA COROLLA VEHICLES (EXCLUDING THE XRS GRADE) EQUIPPED WITH AN ELECTRIC POWER STEERING (EPS) SYSTEM, WHICH HAS BEEN ALLEGED TO “CAUSE VEHICLES TO WANDER OR DRIFT FROM CENTER AT HIGHWAY SPEEDS AND/OR SUDDENLY VEER TO ONE DIRECTION DURING NORMAL USE.” TOYOTA DENIES THESE ALLEGATIONS AND BELIEVES THE CONCERNS RAISED IN THE LAWSUIT ARE ABOUT CUSTOMER PREFERENCE FOR ON-CENTER STEERING FEEL IN THE VEHICLES.
ZG2-ZG3_DEALER	2017-02-15. Service bulletin. DEALER LETTER: THE CLASS ACTION SETTLEMENT RELATES TO CERTAIN 2009 AND 2010 TOYOTA COROLLA VEHICLES (EXCLUDING THE XRS GRADE) EQUIPPED WITH AN ELECTRIC POWER STEERING (EPS) SYSTEM, WHICH HAS BEEN ALLEGED TO “CAUSE VEHICLES TO WANDER OR DRIFT FROM CENTER AT HIGHWAY SPEEDS AND/OR SUDDENLY VEER TO ONE DIRECTION DURING NORMAL USE.” TOYOTA DENIES THESE ALLEGATIONS AND BELIEVES THE CONCERNS RAISED IN THE LAWSUIT ARE ABOUT CUSTOMER PREFERENCE FOR ON-CENTER STEERING FEEL IN THE VEHICLES.
ZG2-ZG3_DEALER	2017-02-14. Service bulletin. DEALER LETTER EMAIL: THE CLASS ACTION SETTLEMENT RELATES TO CERTAIN 2009 AND 2010 TOYOTA COROLLA VEHICLES (EXCLUDING THE XRS GRADE) EQUIPPED WITH AN ELECTRIC POWER STEERING (EPS) SYSTEM, WHICH HAS BEEN ALLEGED TO “CAUSE VEHICLES TO WANDER OR DRIFT FROM CENTER AT HIGHWAY SPEEDS AND/OR SUDDENLY VEER TO ONE DIRECTION DURING NORMAL USE.” TOYOTA DENIES THESE ALLEGATIONS AND BELIEVES THE CONCERNS RAISED IN THE LAWSUIT ARE ABOUT CUSTOMER PREFERENCE FOR ON-CENTER STEERING FEEL IN THE VEHICLES.
ZG2-ZG3_REGION1	2017-02-14. Service bulletin. REGION LETTER: THE CLASS ACTION SETTLEMENT RELATES TO CERTAIN 2009 AND 2010 TOYOTA COROLLA VEHICLES (EXCLUDING THE XRS GRADE) EQUIPPED WITH AN ELECTRIC POWER STEERING (EPS) SYSTEM, WHICH HAS BEEN ALLEGED TO “CAUSE VEHICLES TO WANDER OR DRIFT FROM CENTER AT HIGHWAY SPEEDS AND/OR SUDDENLY VEER TO ONE DIRECTION DURING NORMAL USE.” TOYOTA DENIES THESE ALLEGATIONS AND BELIEVES THE CONCERNS RAISED IN THE LAWSUIT ARE ABOUT CUSTOMER PREFERENCE FOR ON-CENTER STEERING FEEL IN THE VEHICLES.
ZG2-ZG3_REGION	2017-02-14. Service bulletin. REGION LETTER EMAIL: THE CLASS ACTION SETTLEMENT RELATES TO CERTAIN 2009 AND 2010 TOYOTA COROLLA VEHICLES (EXCLUDING THE XRS GRADE) EQUIPPED WITH AN ELECTRIC POWER STEERING (EPS) SYSTEM, WHICH HAS BEEN ALLEGED TO “CAUSE VEHICLES TO WANDER OR DRIFT FROM CENTER AT HIGHWAY SPEEDS AND/OR SUDDENLY VEER TO ONE DIRECTION DURING NORMAL USE.” TOYOTA DENIES THESE ALLEGATIONS AND BELIEVES THE CONCERNS RAISED IN THE LAWSUIT ARE ABOUT CUSTOMER PREFERENCE FOR ON-CENTER STEERING FEEL IN THE VEHICLES.