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Service bulletins for the 2015 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.

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

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By component

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Bulletins, newest first
T-SB-0015-152017-08-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. TSB: Follow the repair procedure in this bulletin to install the latest software version.
T-SB-0025-152017-08-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. TSB: While a vehicle is in inventory, the battery is subject to conditions that can reduce its performance and life. Batteries can become discharged due to an extended storage period, temperature, parasitic drain, or while demonstrating vehicle features and benefits in the sales process. Battery inspection and maintenance are required in order to ensure proper operation and optimal battery life. As described in this bulletin, operating the engine for 30 minutes after 60 days in storage and every 30 days thereafter will help to maintain battery State of Charge (SOC). This process supplements other movements of the vehicle as it is staged, and has specific restrictions on how maintenance is to be done. Also described in this bulletin are 2 other approved methods for maintaining battery State of Charge.
T-SB-0083-13 Rev2017-08-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: 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.
T-SB-0024-152017-08-14. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. TSB: Some 2014 - 2015 model year Corolla vehicles equipped with a 2ZR-FE or 2ZR-FAE engine may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission Pressure Switching Valve Stuck OFF). Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0344-152017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. TT: iPhone text messages do not appear on multimedia display.
T-SB-0043-14 Rev2017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL. 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. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system. NOTE: There are new security provisions required to obtain a Reset Pass-Code. It is critical that the instructions for this new process are reviewed BEFORE attempting to get a Pass-Code in the new system.
T-SB-0068-142017-08-01. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. TSB: Some 2014 Model year Corolla vehicles with and without moon roof may exhibit a condition where the front and rear edge of the headliner is creased and/or appears to be sagging. Follow the repair procedure in this bulletin to address this condition.
T-SB-0067-142017-08-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE. TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ? Careful inspection for paint chips/scratches and body dents/dings. ? Proper operation of electrical accessories (including interior light, clock, and radio reset). ? Interior cleanliness. ? Proper function of mechanical systems. Customer retention and proper maintenance of vehicles has been a major focus for Toyota. To help remind customers that regular oil changes are essential to the proper maintenance of their vehicle, dealers are required to begin installing a first oil change reminder sticker prior to delivery. By doing this, customers will be reminded to return to your dealership for their first oil change. Your current oil change reminder sticker may be used. (See PDS Check Sheet item 8 of ?Final Inspection & Cleaning.?)
T-SB-0066-142017-08-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. TSB: Toyota Corolla 2015 Pre-Delivery Service Check Sheet
T-SB-0134-142017-08-01. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. 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.
T-TT-0309-142017-08-01. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Tech Tip: Some customers may experience Bluetooth disconnections or loss of SMS Text Message Functionality on the navigation/audio system with Android phones running OS 4.4 or later. Condition tends to occur to customers who have many previous text messages on their phones.
T-TT-0307-142017-08-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). 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.
T-SB-0086-14 Rev2017-08-01. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: Some 2014 - 2015 model year Corolla vehicles may exhibit a condition where the A/C system blows warm air intermittently while the vehicle is at idle. An updated A/C compressor is available to address this condition.
T-SB-0014-11 Rev2017-08-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN:AUTOMATIC TRANSMISSION. 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.
T-SB-0006-11 Rev2017-08-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; POWER TRAIN. 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.
T-TT-0277-132017-08-01. Service bulletin. STEERING. TT: VSC MIL "ON" with DTC C1433. Steering angle value in ABS/TRAC ECU is -1044 or 1044 degrees and does not change as steering wheel is turned.
T-SB-0061-162017-05-22. Service bulletin. SEATS. TSB: SOME 2014 – 2015 MODEL YEAR COROLLA VEHICLES MAY EXHIBIT SPLITTING/SEPARATION AS A RESULT OF POOR MANUFACTURING OF THE FRONT SEAT CUSHION COVER. THE TEARING WILL OCCUR AT THE SEAM OF THE OUTER BOLSTER AND CENTER TRIM (SEE PICTURE BELOW FOR EXACT LOCATION/CONDITION). FOLLOW THE REPAIR PROCEDURE TO ADDRESS THIS CONDITION.
T-TT-0374-15 REV2017-04-07. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. "TT: 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. "
T-TT-0268-13 REV2017-04-07. Service bulletin. EQUIPMENT. "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."
T-SB-0021-162017-04-06. Service bulletin. WHEELS. TSB: SOME 2014 – 2016 MODEL YEAR COROLLA VEHICLES MAY EXHIBIT REAR WHEEL HOUSE PLATES THAT APPEAR TO BE LOOSE OR HAVE A GAPPING CONDITION TO THE VEHICLE BODY. NEW PARTS HAVE BEEN MADE AVAILABLE TO PREVENT THIS FROM OCCURRING. PLEASE FOLLOW THE PROCEDURE IN THIS BULLETIN TO ADDRESS THIS CONDITION.
T-SB-0026-14 REV2017-03-30. Service bulletin. TIRES. "TSB: DURING THE MANUFACTURING PROCESS TIRES ARE MOUNTED ON THE VEHICLE AS MATCHED SETS TO HELP REDUCE CONDITIONS SUCH AS PULLING OR DRIFTING. IF THE WHEELS ARE REPLACED OR REFINISHED BEFORE VEHICLE DELIVERY, IT IS IMPORTANT THAT THE TIRES REMAIN ON THE VEHICLE IN THE SAME LOCATION AND IN THE SAME DIRECTION OF ROTATION. PLEASE REFER TO THE FOLLOWING PROCEDURE TO ENSURE THAT THE ORIGINAL TIRES STAY IN THE SAME LOCATION ON THE VEHICLE."
T-SB-0068-14 REV2017-03-30. Service bulletin. EQUIPMENT. TSB: SOME 2014 - 2015 MODEL YEAR COROLLA VEHICLES WITH AND WITHOUT MOON ROOF MAY EXHIBIT A CONDITION WHERE THE FRONT AND REAR EDGE OF THE HEADLINER IS CREASED AND/OR APPEARS TO BE SAGGING. FOLLOW THE REPAIR PROCEDURE IN THIS BULLETIN TO ADDRESS THIS CONDITION.
T-TT-0234-13 REV2017-03-28. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. TT: 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.
T-TT-0344-15 REV2017-03-28. Service bulletin. EQUIPMENT. TT: IPHONE TEXT MESSAGES DO NOT APPEAR ON MULTIMEDIA DIS[PLAY.
T-TT-0360-152017-03-28. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. 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.

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