2012 Toyota Corolla Technical Service Bulletins

350 technical service bulletins (TSBs) are on record for the 2012 Toyota Corolla. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10133793Mar 25, 2013Brakes. Some 2009 ? 2013 model year Corolla and Matrix vehicles may exhibit uneven brake pad wear on the rear disc brake pads. The vehicle may also exhibit a grinding or scraping noise due to the uneven brake pad wear. An updated rear disc brake pad kit has been developed to address this condition.
• 10062010Mar 25, 2013Equipment. Summary to be provided on a future date.
• 10061562Mar 25, 2013Brakes. Summary to be provided on a future date.
• 10133860Feb 27, 2013Electrical system. The customer is having difficulty changing the multi-display screen from Day Mode. If the multi-display screen is set to Day Mode when the headlights are on, the setting we be memorized when the engine is turned off.
• 10133859Feb 27, 2013Electrical system. The radio receiver turns off intermittently along with the clock and cigarette light port.
• 10062037Feb 27, 2013Equipment. Summary to be provided on a future date.
• 10133838Feb 25, 2013Equipment. Some 2012 model year Corolla, Prius, Prius V, Sienna, and Venza vehicles may set SRS Diagnostic Trouble Codes (DTCs) that are not listed in the Repair Manual. Refer to the chart in this bulletin to diagnose these DTCs.
• 10061551Feb 25, 2013Electrical system. Summary to be provided on a future date.
• 10133836Feb 20, 2013Transmission and drivetrain. This bulletin contains general vehicle pulling diagnosis and repair procedures along with specific information to help correct pulling complaints.
• 10133867Feb 7, 2013Equipment. SSTs are key elements to provide your customers with swift and accurate repairs resulting in superior customer satisfaction.
• 10133928Jan 29, 2013Equipment. This communication pertains to a current safety recall being conducted by the Southeast Toyota Distributors LLC (SET). TMS is sending this communication for informational purposes in the event you are contacted by a customer covered by this recall.
• 10133901Jan 29, 2013Equipment. This bulletin is now obsolete. Please see T-SB-0012-13.
• 10133897Jan 29, 2013Electrical system. 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 TIS and the CUW.
• 10133894Jan 16, 2013Equipment. Three NEW application have been developed to enhance the Entune experience in vehicles equipped with the Display Audio Navigation System with Entune. All customers with these vehicles have been shipped instructions on this update along with a USB drive to install the new applications. In the event that a customer requests the install be performed by a technician, follow the procedures in this bulletin to perform…
• 10133893Jan 16, 2013Electrical system. Use the following procedures to check and/or update the software version of Entune/Navigation for Non-HDD Type Units.
• 10133892Jan 16, 2013Equipment. Vehicles equipped with a Display Audio Navigation System and Entune (version less than 2.1.0) may exhibit one or more of the following conditions.
• 10133882Jan 8, 2013Electrical system. Toyota models equipped with the display Audio HDD Navigation System Require a Special Service Tool (SST) USB drive to update the map, points of interest, Gracenote, and system software. The SST is used with all vehicles to deliver the update, however a unique Activation Number is required for each vehicle. Activation numbers are provided in an ACN pamphlet available through the normal parts ordering system.
• 10060834Jan 8, 2013Equipment. Summary to be provided on a future date.
• 10060833Jan 8, 2013Equipment. Summary to be provided on a future date.
• 10133916Jan 3, 2013Electrical system. Please confirm that the customer's concern is not related to a discharged battery or due to any after market accessory issue.
• 10133915Jan 3, 2013Air bags. Toyota vehicles are equipped with SRS, including various airbags and in some models, seat belt pre-tensioners, to help reduce the risk of injury in a collision. If a customer expresses any concerns that the SRS airbags or pretensioner devices did not perform as expected, please follow the steps in the recommendations section below.
• 10062030Jan 3, 2013Electrical system. Summary to be provided on a future date.
• 10133878Jan 2, 2013Electrical system. 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…
• 10133964Dec 21, 2012Engine. Starting with the 2010 MY, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil.
• 10133962Dec 7, 2012Engine. Starting with the 2010 MY, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil.
• 10133932Dec 6, 2012Equipment. A revised procedure has been developed to ensure proper removal and installation of the sun visor. Please use the following procedure for removal and installation of the sun visor.
• 10133931Dec 5, 2012Brakes. Some 2009 ? 2013 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 improve this condition.
• 10061666Dec 5, 2012Brakes. Summary to be provided on a future date.
• 10060785Dec 5, 2012Brakes. Summary to be provided on a future date.
• 10050779Dec 5, 2012Brakes. Toyota: over time, a perceptible, but slight increase in brake pedal travel and will not effect braking performance, but to address this condition, an improved rear drum brake adjusters was developed. Models 2009-2013 corolla.
• 10062011Nov 7, 2012Equipment. Summary to be provided on a future date.
• 10134006Oct 31, 2012Air bags. Some 2012 model year Corolla and Matrix vehicles may exhibit a condition where the SRS MIL may illuminate intermittently, with no Diagnostic Trouble Codes (DTCs) stored in the SRS system. Replace the center airbag sensor assembly to address this condition. This condition will not affect airbag deployment in a collision.
• 10050699Oct 31, 2012Air bags. Toyota: there are not diagnostic trouble codes (dtcs) stored in srs system due to a condition where srs mil illuminates, intermittently and airbag sensor assembly, in center, will be replace. Deployment of airbag will not be affect in a collision. Models 2012 corolla, matrix.
• 10134000Oct 24, 2012Body and 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.
• 10134020Oct 11, 2012Electrical system. Customers who purchase new or replacement iPhones running iOS 6 may find that Toyota a Entune application will not launch on the iPhone. The issue can occur when the customer restores/transfers their apps, contacts, etc.
• 10062023Oct 11, 2012Equipment. Summary to be provided on a future date.
• 10133974Oct 4, 2012Body and structure. 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.
• 10061649Oct 4, 2012Tires. Summary to be provided on a future date.
• 10134033Oct 3, 2012Engine. In certain 2011 and 2012 Model Year Toyota Corolla vehicles manufactured at TMMMS, the Positive Temperature Coefficient (PTC) Heater relays were not installed.
• 10134032Oct 3, 2012Engine. In certain 2011 and 2012 Model Year Toyota Corolla vehicles manufactured at TMMMS, the Positive Temperature Coefficient (PTC) Heater relays were not installed.
• 10051778Oct 3, 2012Equipment. Toyota: on some model vehicles, the positive temperature coefficient (ptc) heater relays were not installed at time of manufactured. Models 2011-2012 corolla.
• 10061596Jun 28, 2012Equipment. Summary to be provided on a future date.
• 10045140Jun 13, 2012Vehicle speed control. Toyota: accelerator pedal sensor assembly information regarding the inspection, removal, and installation, if lubrication or oil, is applied.
• 10061572Apr 2, 2012Equipment. Summary to be provided on a future date.
• 10061542Jan 24, 2012Equipment. Summary to be provided on a future date.
• 10042555Sep 6, 2011Air bags, Seats. Toyota: information provided for replacing the seat covers for vehicles equipped with side airbags.
• 10061578Jun 13, 2011Transmission and drivetrain. Summary to be provided on a future date.
• 10037644Mar 31, 2011Equipment. Toyota: long-term storage procedure for some 2012 models.
• 10197476May 4, 2001Equipment. Replacement vin plates.
• 10197473Jan 18, 1991Equipment. Product general information.

← All problems reported for the 2012 Toyota Corolla