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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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Bulletins, newest first
ZE7_Service Cons2018-04-23. Service bulletin. ENGINE AND ENGINE COOLING. Warranty Enhancement: BACKGROUND As part of our continual efforts to ensure the best in customer satisfaction, Toyota has announced a Warranty Enhancement Program to extend warranty coverage to address customer complaints of Excessive Engine Oil Consumption on Certain 2007-2009 Camry, Certain 2007-2011 Camry Hybrid, Certain 2007-2008 Camry Solara, Certain 2009-2011 Corolla, Certain 2009-2013 Corolla Matrix, Certain 2006-2008 RAV4, Certain 2007- 2010 Scion tC, and Certain 2008-2015 Scion xB, vehicles equipped with a 2AZ engine.
T-TT-0353-152018-04-23. Service bulletin. ENGINE AND ENGINE COOLING. TechTip: Condition - There has been some concern with 3 Piece Piston Ring installations for 2AZ-FE and 2AZ-FXE engines. This TechTip contains the accepted installation method required for Toyota vehicles.
T-TT-0086-112018-04-23. Service bulletin. POWER TRAIN. TechTip: Condition - The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been interrupted.
TTT-0268-13 Rev32018-04-23. Service bulletin. ELECTRICAL SYSTEM. TT: Some customers may encounter Bluetooth connectivity concerns such as: ? Difficulty pairing the phone. ? Intermittent Bluetooth failure to connect when first turning on the vehicle. ? Various Bluetooth Audio functions are no longer functioning with the customer?s phone, such as the 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.
WPB (POL 14-12)_2018-04-23. Service bulletin. ENGINE AND ENGINE COOLING. WPB: Toyota has received some reports where vehicles may exhibit excessive engine oil consumption. Toyota is now announcing the part replacement phase of Warranty Enhancement Program ZE7 for vehicles exhibiting excessive engine oil consumption.
T-TT-0353-15 Rev2018-04-23. Service bulletin. ENGINE; EQUIPMENT. TT: There has been some concern with 3 Piece Ring installations for 2AZ-FE and 2AZ-FXE engines. This Tech Tip contains the accepted installation method required for Toyota vehicles.
TTT-0337-15 Rev12018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: When updating either the navigation or radio firmware, verify the vehicle applicability BEFORE beginning the update.
ZE7_Warranty Enh2018-04-23. Service bulletin. ENGINE AND ENGINE COOLING. EC: Currently the Reair Kit for RAV4 Vehicles PN: 04004-11828 is missing exhaust gasket 90917-06078 at this time to supplement this kit contents. The warranty system has been modified to accept this additional required part.
T-TT-0362-152018-04-23. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been interrupted.
T-TT-0361-152018-04-23. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. TT: Based on current part order allocation, some piston types have been incorrectly identified while undergoing the ZE7 2AZ Oil Consumption repair procedure. Replacement pistons for ZE7 should be ordered based on the pistons removed from the existing cylinder block and no longer by the measurement. This Tech Tip includes information regarding production allocation and instructions for identifying piston type on subject engines. this will be published in the next revision of T-SB-0030-15
T-TT-0360-152018-04-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: Customers may experience connectivity issues when the following conditions are met: The customer's iPhone is operating on iOS9 firmware. The customer's iPhone is connected to the vehicle via Bluetooth. The customer may complain of the following issues: When receiving two incoming calls simultaneously, both calls are ended automatically. iTunes Radio app does not play via Bluetooth audio. Podcast and Audiobook media playback is inoperative via Bluetooth audio.
T-TT-353-15 Rev12018-04-23. Service bulletin. ENGINE; EQUIPMENT. TT: There has been some concern with 3 Piece Ring installations for 2AZ-FE and 2AZ-FXE engines. This Tech Tip contains the accepted installation method required for Toyota vehicles.
ZE7_Part Status2018-04-23. Service bulletin. ENGINE. Electronic Communication: BACKGROUND As part of our continual efforts to ensure the best in customer satisfaction, Toyota has announced a Warranty Enhancement Program to extend warranty coverage to address customer complaints of Excessive Engine Oil Consumption on Certain 2007-2009 Camry, Certain 2007-2011 Camry Hybrid, Certain 2007-2008 Camry Solara, Certain 2009-2011 Corolla, Certain 2009-2013 Corolla Matrix, Certain 2006-2008 RAV4, Certain 2007- 2010 Scion tC, and Certain 2008-2015 Scion xB, vehicles equipped with a 2AZ engine.
ZE7_Part Status2018-04-23. Service bulletin. ENGINE. Electronic Communication: BACKGROUND As part of our continual efforts to ensure the best in customer satisfaction, Toyota has announced a Warranty Enhancement Program to extend warranty coverage to address customer complaints of Excessive Engine Oil Consumption on Certain 2007-2009 Camry, Certain 2007-2011 Camry Hybrid, Certain 2007-2008 Camry Solara, Certain 2009-2011 Corolla, Certain 2009-2013 Corolla Matrix, Certain 2006-2008 RAV4, Certain 2007-2010 Scion tC, and Certain 2008-2015 Scion xB, vehicles equipped with a 2AZ engine.
TSB-0012-13 Rev22018-04-23. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. TSB: Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information.
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.
Po-14-12l2018-04-23. Service bulletin. ENGINE. Warranty Policy Bulletin (POL14-12): Toyota has received some reports where vehicles may exhibit excessive engine oil consumption. Toyota is now announcing the part replacement phase of Warranty Enhancement Program ZE7 for vehicles exhibiting excessive engine oil consumption.
T-SB-0208-122018-04-23. Service bulletin. STRUCTURE. Some 2009 ? 2013 model year Corolla and 2009 ? 2012 model year Matrix vehicles may exhibit a rattle, pop, or click noise when operating the driver or passenger front window glass. In some cases, the front window may become inoperative. This may be due to loose window regulator mounting bolts. Use the following repair procedure to address this condition.
T-SB-0192-122018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2006 ? 2012 model year vehicles equipped with the 2AZ engine may exhibit an intermittent MIL ?ON? condition with Diagnostic Trouble Code (DTC) P0335 (Crankshaft Position Sensor ?A? Circuit) stored. The intake camshaft gear assembly has been improved to help prevent this condition.
T-SB-0189-122018-04-23. Service bulletin. SERVICE BRAKES. Some 2009-2011 Corolla vehicles may exhibit a condition where, over time, there is a slight, but perceptible increase in brake pedal travel. This condition has no effect on braking performance. Improved rear drum brake adjusters have been developed to address this condition.
T-SB-0187-122018-04-23. Service bulletin. STRUCTURE:BODY. Toyota vehicles are equipped with either conventional or run-flat tires. Sometimes punctures may occur as a result of contact with road debris or other hazards. If a puncture occurs, it may be possible to repair the tire and return it to service. With a conventional tire it is not possible to drive for an extended amount of time with the tire at low pressures as damage to the tire may occur. With run-flat tires, due to reinforced sidewalls, it is possible to drive for up to 100 miles (160 km) at speeds less than 55 mph (90 km/h) with little or no damage to the tire.

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