2012 Toyota COROLLA Manufacturer communications & TSBs.Page 3
Original record summaries, dates and identifiers for this model-year. Records 201–300 of 350, ordered newest first. Dated records on this page: Mar 25, 2013–Apr 6, 2015.
Read the applicability before drawing a conclusion.
This archive includes service bulletins, warranty notices, software instructions and other communications. Records may repeat or supersede earlier instructions. A model-year association is not proof that a document covers every engine, trim, VIN or reported symptom, or that a repair is free.
NHTSA download snapshot: Sep 28, 2026. These are communication associations for this vehicle, not unique defects. How records are joined and counted.
Apr 6, 2015Service Bulletin/Repair Instructions
TTT-0337-15 Rev1
NHTSA communication ID: 10134247
NHTSA source summary · Original PDF not reviewed by Recallfolio
TT: When updating either the navigation or radio firmware, verify the vehicle applicability BEFORE beginning the update.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: On some vehicles, when Rapgard is removed, the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is not necessary). The stain patterns are usually under wrinkles in the Rapgard. These wrinkles sometimes trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Stains can be removed by heating the stained surface to remove the trapped moisture.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: On some vehicles, when Rapgard is removed, the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is not necessary). The stain patterns are usually under wrinkles in the Rapgard. These wrinkles sometimes trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Stains can be removed by heating the stained surface to remove the trapped moisture.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TT: Some customers may encounter various Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TT: Some customers may encounter various Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
"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 ECUS INFORMATION."
NHTSA source summary · Original PDF not reviewed by Recallfolio
TT: Customers complain of various Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TT: Customers complain of various Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: The purpose of this bulletin is to assist in the identification and location of serial numbers on 2006 -2014 model year remanufactured automatic transmissions.
Source components: POWER TRAIN:AUTOMATIC TRANSMISSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: The purpose of this service bulletin is to provide information regarding the installation of the correct torque converter bolts during automatic transmission/transaxle assembly replacement. Incorrect torque converter bolts or missing washers can cause damage to the torque converter assembly.
Source components: POWER TRAIN:AUTOMATIC TRANSMISSION · POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: World Standard (WS) Automatic Transmission Fluid (ATF) was introduced to reduce maintenance costs and increase the mileage between scheduled maintenance checks. Here are some important tips when working with ATF-WS in Toyota vehicles requiring it's use.
Source components: POWER TRAIN · POWER TRAIN:AUTOMATIC TRANSMISSION · POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Tech Tip: Customer complains of carious Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: The purpose of this bulletin is to provide precautions to follow when installing an automatic transmission/transaxle assembly to avoid MIL "ON" shifting issues and/or transmission damage. Use the information in this bulletin when installing an automatic transmission/transaxle assembly.
Source components: POWER TRAIN · POWER TRAIN:AUTOMATIC TRANSMISSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: Some 2012 - 2014 model year Corolla vehicles equipped with a 2ZR-FE engine (or 2014 model year 2ZR-FAE) and some 2012 - 2013 model year Matrix vehicles equipped with a 2ZR-FE engine may exhibit a MIL "ON" with DTC P219A (Bank 1 Air-Fuel Ratio Imbalance) present. Follow the Repair Procedure in this bulletin to improve this condition.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: 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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Tech Tip: Starting with the 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w20 viscosity engine oil. There are multiple benefits of this oil including: Reduced friction and wear on engine surfaces, Improved fuel economy, Reduction in waste oil stream (in vehicles approved for 10,000 mile oil change intervals), Reduced maintenance cost (in vehicles approved for 10,000 mile oil change intervals). Due to the improved performance and durability of 0w20 synthetic oil, Toyota has extended the oil change intervals to 10,000 mile for most vehicles that require this oil. With this change, the following should be noted: The 2TR-FE (4Runner/Tacoma) and the 3UR-FBE (Flex Fuel Tundra/Sequoia) are the exceptions to this new change interval program; these engines have not been approved for the 10,000 mile interval at this time. A 5,000 mile oil change interval is still required for these vehicles. Also, the Flex Fuel 3UR-FBE requires a 2,500 mile interval when operated on E85 50% of the time or more. Only Toyota vehicles in which 0w20 oil is mandatory (except for the 2TR-FE & 3UR-FBE Engines) have been approved for extended oil change intervals. Vehicles in which 0w-20 is an option to 5w20 (or 5w30) will continue to require 5,000 mile change intervals, even if 0w20 oil is used. In case of vehicles with 10,000 mile oil change intervals, the 5,000 mile service interval has not been eliminated. The traditional 5,000 mile maintenance procedures (such as tire rotation) will continue to be required, and the fluid levels (including engine oil) will need to be checked and adjusted at this time. If the vehicle operation meets the standard criteria for "Special Operating Conditions" such as: driving off-road, on dirt roads, towing a trailer, making repeated short trips under 32 degrees F, or extensive idling, the engine oil must be replaced at 5,000 mile intervals, regardless of oil used.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Tech Tip: Low battery voltage can contribute to a MIL "ON" condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340 (Camshaft Position Sensor Circuit) due to inconsistent rotational speed of the engine's crankshaft.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Some vehicles in particular geographic areas may exhibit a condition where the HVAC Evaporator Drain Hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is now available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper handling and installation of this optional service part.
Source components: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer complains of Bluetooth connectivity concerns such as: Difficulty to pair phone, Intermittent Bluetooth failure to connect to the vehicle when first turning on the vehicle. 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 they have restored their phone data/settings recently.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
NHTSA source summary · Original PDF not reviewed by Recallfolio
A key part to maintain the proper function and safe operation of the vehicle's braking system is to perform a visual inspection when installing brake pads, calipers, and discs. The following recommendations are intended to provide general tips for the inspection and/or installation of Toyota Complete Maintenance Care (TCMC) front brake pads and discs. Always refer to the model specific Repair manual and TIS publications for specific repair instructions.
Source components: EQUIPMENT · SERVICE BRAKES, HYDRAULIC.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Starting with the 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. There are multiple benefits of this oil. Due to the improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicle that require this oil.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Toyota models equipped with the Display Audio 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 Activation Card Number (ACN) pamphlet available through the normal parts ordering system. Use the process described in this bulletin to perform an update.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Some 2012 model year 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:
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Toyota vehicles are equipped with Supplemental Restraint Systems (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 pre-tensioner devices did not perform as expected (including an unintended deployment event), please follow the steps in the recommendations section below.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Applicability has been updated to include 2014 model year Avalon, Avalon HV, Camry, Camry HV, Prius, Prius C, Prius PHV, Prius V, Venza vehicles. Vehicle equipped with a Display Audio Navigation System and Entune (version less than 2.1.0) may exhibit one or more of the following conditions. Vehicle orientation slow to update after vehicle start up. Five Bing results are not all displayed on the map.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Beginning in 1998, Toyota introduced side airbags as optional equipment. Toyota does NOT recommend replacement of original seat covers with non-Toyota leather or other seat cover materials on vehicles due to the following: Seat covers NOT recommended by Toyota may affect side airbag performance, in general or in part, during an accident. Modifications that negatively affect side airbag performance can result in severe occupant injuries. Seat covers are an integral part of this safety system. Replacing fabric seat covers with non-Toyota leather or other seat cover materials may compromise the effectiveness of this safety system. The design of the seat is complex, integrating safety and strength with comfort and luxury. Toyota strongly discourages modifying original equipment seats that have optional side airbags. Additionally, Toyota strongly advises against the installation or use of aftermarket seat covers, which could impair the performance of the side airbags in the event of an accident.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 they have restored their phone data/settings recently.
Source components: ELECTRICAL SYSTEM · EQUIPMENT:ELECTRICAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
The appearance of spots in tempered glass (when viewed at certain angles) is the result of the heat treating and quick quenching process during manufacturing.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Due to the improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicles that require this oil. With this change, the following should be noted
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer?s experiencing this condition can use a 3rd party podcast application on their iPhone (such as Pocket Casts or Instances) instead of the native Apple Podcast application.
NHTSA source summary · Original PDF not reviewed by Recallfolio
The purpose of this service bulletin is to provide precautions to follow when installing an automatic transmission/transaxle assembly to avoid MIL ?ON,? shifting issues, and/or transmission damage. Use the information in this bulletin when installing an automatic transmission/transaxle assembly
NHTSA source summary · Original PDF not reviewed by Recallfolio
To receive satellite radio functions after the initial trial period has expired, the customer must enter into a contract with XM Satellite Radio Inc. After entering into a contract, registration of an 8-digit XM Radio ID is required. This 8-digit XM Radio ID is found by turning to channel ?0? of the satellite radio.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Some 2004 ? 2014 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.
NHTSA source summary · Original PDF not reviewed by Recallfolio
A new Special Service Tool (SST 09709-00002) has been introduced to aid in the inspection procedure for certain vehicles equipped with a floor pedal-type parking brake system. This bulletin references the correct method for installing the Brake Pedal Force Gauge. Refer to the appropriate Repair Manual for parking brake pedal travel inspection and adjustment specification.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN VEHICLES FAILED TO HAVE THE POSITIVE TEMPERATURE COEFFICIENT (PTC) HEATER RELAYS INSTALLED AT TIME OF MANUFACTURED. MODELS 2011-2012 COROLLA. *PE
Source components: ENGINE AND ENGINE COOLING:COOLING SYSTEM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
The procedure in this bulletin is a general guideline on how to properly diagnose the air conditioning system after a component failure. Refer to the applicable Repair Manual for vehicle specific repair procedures and parts.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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
NHTSA source summary · Original PDF not reviewed by Recallfolio
When diagnosing audio, navigation, and Bluetooth concerns on Toyota vehicles equipped with Premium Display Audio with Entune, adhere to the guidelines listed below.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Toyota models equipped with the Display Audio 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 the vehicles to deliver the update, however a unique Activation Number is required for each vehicle.
NHTSA source summary · Original PDF not reviewed by Recallfolio
California (CA), Federal (FED), and 50 State Certified emission control underhood labels (emission labels) may be obtained through your dealership?s Parts Department utilizing standard replacement parts ordering procedures. Follow the guidelines outlined in this bulletin to ensure proper label application.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
Source components: AIR BAGS · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
NHTSA source summary · Original PDF not reviewed by Recallfolio
If a creak, tick, or rattle noise is heard at the top or bottom of the windshield, or at the top of the rear glass, the source of the noise may be the two stoppers bonded to the top of the windshield/rear glass, or the windshield retainers bonded to the lower edge of the windshield. This bulletin provides the recommended repair procedure to eliminate these types of noises from the windshield/rear glass area.
Source components: BACK OVER PREVENTION · STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT.
NHTSA source summary · Original PDF not reviewed by Recallfolio
2012-2013 model year vehicles equipped with a Display Audio Navigation System and Entune (version less than 2.2.0) may exhibit one or more of the following conditions.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Toyota will be sending Safety Recall Follow Up Notices to remind owners whose vehicles have not yet had campaign repair completed. Please note the following information for Regional and PD associates.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Toyota will be sending Safety Recall Follow Up Notices to remind owners whose vehicles have not yet had campaign repair completed. Please note the following information for Regional and PD associates.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Starting with 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0W-20 viscosity engine oil. There a re man benefits of this oil.