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Service bulletins for the 2016 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.

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

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Bulletins, newest first
T-SB-0057-182018-08-20. Service bulletin. EQUIPMENT. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0043-14. ? Applicability has been updated to include 2017 ? 2018 model year Toyota vehicles. Service Bulletin No. T-SB-0043-14 is obsolete and any printed versions should be discarded. 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 New security provisions are required to obtain a reset passcode. It is critical to review the instructions for this new process BEFORE attempting to get a passcode in the new system.
T-SB-0068-14_Rev2018-07-16. Service bulletin. STRUCTURE. TSB: REVISION NOTICE June 13, 2018 Rev2: ? Applicability has been updated to include 2016 ? 2017 model year Corolla vehicles. ? The Production Change Information section has been updated. September 15, 2015 Rev1: ? Applicability has been updated to include 2015 model year Corolla vehicles. Any previous printed versions of this bulletin should be discarded. Some 2014 ? 2017 model year Corolla vehicles with or without a moonroof may exhibit a condition where the front and rear edge of the headliner is creased and/or appears to sag. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0500-182018-07-16. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. TT: Some 2014 ? 2018 model year Corollas may experience a dark red or black colored fluid leak between the engine and transmission bell housing.
T-TT-0441-172018-07-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TT: During previous air conditioning service, leakage prevention agent (A/C stop leak) may have been added to the A/C system. Adding stop leak products to the A/C system is not a recommended or approved Toyota repair process. During A/C service, moisture enters the A/C system, and can react with the previously added A/C stop leak, forming a gelatinous substance. The gel substance that forms can cause the A/C compressor to bind and or seize.
T-SB-0044-162018-07-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE. 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.
J0D_Dealer Daily2018-06-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer Daily Message: **UPDATED FAQ AVAILABLE ON TIS** - The FAQ for Special Service Campaign J0D has been updated. Please refer to the J0D Dealer Letter on TIS for the updated FAQ. The updated FAQ is also attached to this Dealer Daily Message for your reference. o The updated FAQ will assist dealership personnel in answering questions customers may have about the status of Special Service Campaign J0D.
J0D_Dealer Lette2018-06-18. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Dealer Letter: May 7, 2018 The condition has been clarified. Special Service Campaign J0D is SUSPENDED. 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.
T-SB-0044-162018-06-11. Service bulletin. STRUCTURE:BODY. 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.
T-TT-0392-16 Rev2018-06-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TT: Some customers may experience Bluetooth connection issues after updating the Android Operating System to 5.x.x (Lollipop) or later.
T-SB-0029-14 Rev2018-04-23. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. TSB: 2015 ? 2016 model year vehicles are equipped with driver?s side floor mat retaining clips to secure the floor mat in the correct position. In addition, some models may utilize retaining clips for passenger side and rear seat floor mats as well. Follow the appropriate installation procedure to attach the driver?s side, and if applicable, the passenger?s side and rear seat floor mats to the vehicle carpet using the floor mat retaining clips during Pre-Delivery Service (PDS).
T-SB-0024-14 Rev2018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. TSB: Some 2015 - 2016 model year vehicles are equipped with a Smart Key system, which allows the customer to enter and start the vehicle without using a mechanical key. To ensure the system is operating properly, the Smart Key functions (Smart Entry and Smart Start) should be inspected during Pre-Delivery Service (PDS). The following inspection procedure has been developed to confirm the proper operation of the Smart Key system prior to vehicle delivery.
T-TT-0392-162018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Some customers may experience Bluetooth connection issues after updating the Android Operating System to 5.x.x (Lollipop) or later.
T-SB-0080-162018-04-23. Service bulletin. ELECTRICAL SYSTEM. TSB: Some 2014 ? 2016 model year Corolla vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2610 present, indicating an ECM/PCM Internal Engine OFF Timer Performance condition. The Engine Control Module (ECM) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure below to address this condition.
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.
T-SB-0021-162018-04-23. Service bulletin. STRUCTURE:FRAME AND MEMBERS; 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-0019-162018-04-23. Service bulletin. ELECTRICAL SYSTEM. TSB: Some 2016 model year vehicles equipped with Entune? Audio (version UU.10.48), Entune? Audio Plus (version EU.10.68 or EU.20.25 or EU.20.28), or Entune? Premium Audio (CU.10.71 or CU.10.72 or CU.20.05 or CU.20.08) may exhibit one or more of the following conditions: ? Swiping feature inoperative on APPs or Setup screens. ? Meijer Department Store is intermittently pronounced ?Mee-jer.? ? Number of transferred contacts is not updated. ? Slacker skips 2 songs when using steering wheel controls. ? Starting Pandora via voice recognition is intermittently inoperative. ? Transitioning from BT Audio to Entune, no sound is output (iPhone and Android). ? FM mode will show the incorrect number of available stations intermittently. ? Voice recognition will not start intermittently. ? Audio is intermittently not displayed on the home screen. ? Rumbling sound when no audio is playing. ? Intermittent ?Message list could not be loaded? is displayed when retrieving messages. ? Audio information does not match between the Head Unit and Instrument Cluster. ? Instrument Cluster has incorrect display of XM channels. ? Panoramic camera view is intermittently inoperative. ? Scout voice guidance has rear speakers muted. ? USB Audio Playback resets after key cycle.
T-TT-0385-162018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Tech Tip: This Tech Tip is being provided to bring attention to the new location of the Entune/NAV/Map Update and Upgrade USB Directory. Click on the TIS tab, Diagnostics tab, Telematics tab, and the document is now located under the reference documents sections. This change has occurred to help speed up the updating process of this document.
T-TT-0384-162018-04-23. Service bulletin. UNKNOWN OR OTHER. Tech Tip: Some customers may experience a condition that, after using Siri Eyes Free, the head unit will change from whatever source they were listening to, to the Bluetooth Audio source. This condition was introduced with the iOS 9 and later versions.
TSB-0019-16 Rev12018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: Some 2016 model year vehicles equipped with Entune? Audio (version UU.10.48), Entune? Audio Plus (version EU.10.68 or EU.20.05 or EU.20.08), or Entune? Premium Audio (CU.10.71 or CU.10.72 or CU.20.05 or CU.20.08) may exhibit one or more of the following conditions: *Swiping feature inoperative on APPs or Setup screens; *Meijer Department Store is intermittently pronounced ?Mee-jer?; *Number of transferred contacts is not updated; *Slacker skips 2 songs when using steering wheel controls; *Starting Pandora via Voice Recognition is intermittently inoperative; *Transitioning from BT Audio to Entune, no sound is output (iPhone and Android); *FM mode will show the incorrect number of available stations intermittently; *Voice Recognition will not start intermittently; *Audio is intermittently not displayed on the home screen; *Rumbling sound when no audio is playing; *Intermittent ?Message list could not be loaded? is displayed when retrieving messages; *Audio information does not match between the Head Unit and Instrument Cluster; *Instrument Cluster has incorrect display of XM channels; *Panoramic camera view is intermittently inoperative; *Scout voice guidance has rear speakers muted; *USB Audio Playback resets after key cycle.
TTT-0344-15 Rev12018-04-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: iPhone text messages do not appear on multimedia dis[play.
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-0381-162018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Tech Tip: Some customers may experience difficulty programming HomeLink.
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.
T-TT-0399-162018-04-23. Service bulletin. ELECTRICAL SYSTEM. TT: Multimedia systems reset procedure should be performed when the multimedia system no longer responds or reboots itself.
T-TT-0377-15_Rev2018-04-23. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. 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.

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