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Service bulletins for the 2010 Toyota Corolla

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.

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

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Only bulletins with component: Steering are shown. Show all

Bulletins, newest first
T-TT-0578-19 Rev2020-11-23. Service bulletin. STEERING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. 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-TT-0578-192019-12-02. Service bulletin. STEERING. 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.
ZG2-ZG3-Expired-2018-12-03. Service bulletin. STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM. 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_Warranty2018-04-23. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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 L2018-04-23. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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 L2018-04-23. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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 L2018-04-23. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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-16-052018-04-23. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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.
T-TT-0242-132018-04-02. Service bulletin. POWER TRAIN; STEERING. Some customers have experienced amber colored oil like substance found on floor mats. Further investigation reveals the electric power steering column showing signs of the oiling substance leaking.
POL16-052017-02-15. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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_DEALER2017-02-15. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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_DEALER2017-02-14. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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_REGION12017-02-14. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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_REGION2017-02-14. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. 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.
T-TT-0242-132016-07-07. Service bulletin. STEERING:COLUMN; STEERING. Some customers have experienced amber colored oil like substance found on floor mats. Further investigation reveals the electric power steering column showing signs of the oiling substance leaking
T-TT-0242-132016-04-12. Service bulletin. STEERING. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-0140-102011-02-02. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM. TOYOTA: POWER STEERING FEEL. SOME CUSTOMERS HAVE EXPRESSED DISSATISFACTION WITH THE ON-CENTER STEERING FEEL ON THE 2009 – 2010 MODEL YEAR COROLLA VEHICLES. A RE-TUNED POWER STEERING COMPUTER ASSEMBLY HAS BEEN DEVELOPED TO PROVIDE AN ALTERNATIVE STEERING FEEL FOR THESE CUSTOMERS.

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