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Service bulletins for the 2014 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
T-SB-0058-23 Rev12025-07-10. Service campaign. ELECTRICAL SYSTEM. The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
T-SB-0057-182023-06-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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.
T-SB-0003-222022-02-14. Service bulletin. ELECTRICAL SYSTEM:WIRING. TSB This Service Bulletin includes guidelines meant to help determine whether to repair or replace a wire harness assembly based on damage type. This Service Bulletin should be used in conjunction with the applicable model and model year Electronic Wiring Diagram (EWD) and/or Repair Manual.
JSD-0821182021-06-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CVT; ELECTRICAL SYSTEM:SOFTWARE. An electric control unit has improper programming.
J0D-0328182021-06-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CVT; EQUIPMENT. Transmission has improper programming.
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-SB-0117-19_Rev2020-01-27. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. TSB: REVISION NOTICE December 02, 2019 Rev1: ? The bulletin title and Software Update section have been updated. Any previous printed versions of this bulletin should be discarded. Some 2014 model year Corolla vehicles equipped with Entune? Audio (version BU.26.42) or Entune? Premium Audio (version AU.26.61) may exhibit one or more of the following conditions. ? Apps screen displays after reroute (Entune? Premium Audio only) ? Voice command system freezes during phonebook transfer ?Voice command system freezes when radio is in XM mode ? Bluetooth® is inoperative while using Apps ? Sent SMS message continually appears on display audio for BlackBerry® devices (Q10 and Z10)
T-SB-0015-15_Obs2019-10-15. Service bulletin. ELECTRICAL SYSTEM. TSB: OBSOLETE NOTICE September 19, 2019: This bulletin is now obsolete. Please see T-SB-0117-19.
T-TT-0574-192019-10-15. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TT: Some customers may experience poor outgoing Bluetooth sound quality, this can occur for various reasons. Current multimedia systems are designed with the ability to adjust Bluetooth sound quality to compensate for echo or excessive background noise.
T-TT-0573-192019-10-15. Service bulletin. ELECTRICAL SYSTEM. TT: Some customers may experience a call failure when attempting to call a conference call number that has been saved in their phonebook (ex: ?8005550122,,,1.,2;;;2#?). This issue is caused by changes to the Bluetooth in the iOS 13 update and may be resolved in a future iOS update.
T-SB-0117-192019-09-16. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; ELECTRICAL SYSTEM. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0015-15. Service Bulletin No. T-SB-0015-15 is obsolete and any printed versions should be discarded. Some 2014 model year Corolla vehicles equipped with Entune? Audio (version BU.26.42) or Entune? Premium Audio (version AU.26.61) may exhibit one or more of the following conditions. ? Apps screen displays after reroute (Entune? Premium Audio only) ? Voice command system freezes during phonebook transfer ? Voice command system freezes when radio is in XM mode ? Bluetooth® is inoperative while using Apps ? Sent SMS message continually appears on display audio for BlackBerry® devices (Q10 and Z10)
T-SB-0134-16-Rev2019-09-03. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ENGINE. TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (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. NOTE ECU is a Toyota term used to describe integrated computerized devices responsible for managing the operation of a system or subsystem. For the purposes of this bulletin, the term ?ECU? is used as a generic label for the following SAE J1930 standard references: ? Powertrain Control Module (PCM) ? Engine Control Module (ECM) ? Transmission Control Module (TCM) ? Any other Toyota specific control unit
T-TT-0414-16-Rev2019-03-25. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; ELECTRICAL SYSTEM. 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.
TSB0182172018-12-17. Service bulletin. ELECTRICAL SYSTEM. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0101-11. Applicability has been updated to include 2016 ? 2017 model year vehicles. Service Bulletin No. T-SB-0101-11 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals contain silicone or other compounds that may contaminate electrical contacts, and therefore increase electrical resistance and decrease switch performance. The use of any cleaners or fluids may increase the risk of further damage to electrical components.
J0D Dealer Daily2018-12-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Dealer Daily Message: Special Service Campaign J0D ? Remedy Notice Certain 2014 ? 2017 Model Year Toyota Corolla Vehicles Certain 2017 Model Year Toyota Corolla iM Vehicles Certain 2016 Model Year Scion iM Vehicles. Continuously Variable Transaxle (CVT) Software Update Special Service Campaign J0D Dealer Letter and Technical Instructions now available on TIS. Refer to the Dealer Letter and Technical Instructions on TIS for additional information.
J0D Technical In2018-12-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Technical Instructions: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN J0D CONTINUOUSLY VARIABLE TRANSAXLE SOFTWARE UPDATE CERTAIN 2014-2017 TOYOTA Corolla, CERTAIN 2017 TOYOTA Corolla iM, CERTAIN 2016 SCION iM
T-SB-0134-162018-12-03. Service bulletin. ELECTRICAL SYSTEM. TSB: Supersession Notice. 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.
JSD-Dealer Lette2018-12-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. Dealer Letter: August 13, 2018. ? A section has been added which clarifies the process for obtaining DSPM approval for out-of-warranty CVT assembly replacement. ? Clarification has been added to the parts ordering process for CVT assembly replacement to highlight that the CVT assembly parts ordering process is applicable regardless of warranty coverage. ? The descriptions for OpCodes JSD021 and JSD020 have been clarified. Toyota previously announced Special Service Campaign J0D, which involved performing a software update to the CVT control software to address the condition described below. Following the completion of the software update in Special Service Campaign J0D, Toyota dealers received reports from some customers stating that the vehicle experienced harsh shifting and/or abnormal engine RPM between shifts. These issues occurred close to the completion date of the campaign and/or within relatively low mileage from the completion of the campaign remedy, prompting Toyota to suspend Special Service Campaign J0D. Toyota has now identified the cause of these issues and has developed a new remedy. Special Service Campaign JSD, which replaces Special Service Campaign J0D, applies this new remedy. Owners of all vehicles previously involved in Special Service Campaign J0D, including those who have previously completed Special Service Campaign J0D, are requested to visit an authorized Toyota dealer to have Special Service Campaign JSD performed.
JSD-Technical In2018-11-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. Technical Instructions: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN JSD CONTINUOUSLY VARIABLE TRANSAXLE SOFTWARE UPDATE CERTAIN 2014-2017 TOYOTA Corolla CERTAIN 2017 TOYOTA Corolla iM CERTAIN 2016 SCION iM UPDATE 8-20-2018
JSD-Dealer Lette2018-11-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT. Dealer Letter: August 13, 2018. ? A section has been added which clarifies the process for obtaining DSPM approval for out-of-warranty CVT assembly replacement. ? Clarification has been added to the parts ordering process for CVT assembly replacement to highlight that the CVT assembly parts ordering process is applicable regardless of warranty coverage. ? The descriptions for OpCodes JSD021 and JSD020 have been clarified. Toyota previously announced Special Service Campaign J0D, which involved performing a software update to the CVT control software to address the condition described below. Following the completion of the software update in Special Service Campaign J0D, Toyota dealers received reports from some customers stating that the vehicle experienced harsh shifting and/or abnormal engine RPM between shifts. These issues occurred close to the completion date of the campaign and/or within relatively low mileage from the completion of the campaign remedy, prompting Toyota to suspend Special Service Campaign J0D. Toyota has now identified the cause of these issues and has developed a new remedy. Special Service Campaign JSD, which replaces Special Service Campaign J0D, applies this new remedy. Owners of all vehicles previously involved in Special Service Campaign J0D, including those who have previously completed Special Service Campaign J0D, are requested to visit an authorized Toyota dealer to have Special Service Campaign JSD performed.
JSD_Technical In2018-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Technical Instructions: Updated 09-17-18 TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN JSD CONTINUOUSLY VARIABLE TRANSAXLE SOFTWARE UPDATE CERTAIN 2014-2017 TOYOTA Corolla CERTAIN 2017 TOYOTA Corolla iM CERTAIN 2016 SCION iM
JSD-Region Lette2018-10-15. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Region Letter: August 28,2018 The instructions for Option #1 have been corrected. An Electronic Control Unit (ECU) in the subject vehicles has improper programming that could lead a component in the Continuously Variable Transmission (CVT) to unnecessarily cycle and experience abnormal wear. If this component becomes damaged, the Malfunction Indicator Lamp (MIL) may illuminate in the instrument cluster and the vehicle could experience a reduction of speed. After reaching a pre-determined gear ratio, the vehicle can be operated up to approximately 37 mph.
JSD-Technical In2018-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Technical Instructions: TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN JSD CONTINUOUSLY VARIABLE TRANSAXLE SOFTWARE UPDATE CERTAIN 2014-2017 TOYOTA Corolla CERTAIN 2017 TOYOTA Corolla iM CERTAIN 2016 SCION iM. UPDATE 8-21-2018
JSD-Region Lette2018-10-15. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; EXTERIOR LIGHTING. Region Letter: August 2, 2018 The descriptions for OpCodes JSD005, JSD006 JSD007, and JSD008 have been updated. An Electronic Control Unit (ECU) in the subject vehicles has improper programming that could lead a component in the Continuously Variable Transmission (CVT) to unnecessarily cycle and experience abnormal wear. If this component becomes damaged, the Malfunction Indicator Lamp (MIL) may illuminate in the instrument cluster and the vehicle could experience a reduction of speed. After reaching a pre-determined gear ratio, the vehicle can be operated up to approximately 37 mph.
JSD-Region Email2018-10-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Region Email: Attached Region Letter has been updated. ? The descriptions for OpCodes JSD005, JSD006 JSD007, and JSD008 have been updated. Toyota previously announced Special Service Campaign J0D, which involved performing a software update to the CVT control software to address the condition described below. Following the completion of the software update in Special Service Campaign J0D, Toyota dealers received reports from some customers stating that the vehicle experienced harsh shifting and/or abnormal engine RPM between shifts. These issues occurred close to the completion date of the campaign and/or within relatively low mileage from the completion of the campaign remedy, prompting Toyota to suspend Special Service Campaign J0D. Toyota has now identified the cause of these issues and has developed a new remedy. Special Service Campaign JSD, which replaces Special Service Campaign J0D, applies this new remedy. Owners of all vehicles previously involved in Special Service Campaign J0D, including those who have previously completed Special Service Campaign J0D, are requested to visit an authorized Toyota dealer to have Special Service Campaign JSD performed.

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