2018 Toyota Sequoia Technical Service Bulletins

199 technical service bulletins (TSBs) are on record for the 2018 Toyota Sequoia. 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.

• 10174891Apr 7, 2020Equipment. TSB: OBSOLETE NOTICE April 07, 2020: This bulletin is now obsolete. Please see T-SB-0032-20. Replacement Certification Labels and VIN Plates
• 10174890Apr 6, 2020Equipment. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, T-SB-0144-08, and T-SB-0304-17. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Replacement certification labels (the vinyl label installed on the driver door or door post)…
• 10173968Mar 18, 2020Air bags, Forward collision avoidance. TSB: All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra vehicles and All 2020 ? 2021 model year 4Runner vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise Control (DRCC) as part of the Toyota Safety Sense (TSS) package. The PCS and DRCC systems are designed to help mitigate a potential collision and maintain a pre-determined traveling distance.
• 10173965Mar 12, 2020Equipment. TI: TECHNICAL INSTRUCTIONS There is a possibility that some of the involved 2012-2019 Sequoias received a Toyota Genuine carpet floor mat set that is designed for different model year Sequoia vehicles (model years 2008-2011). If installed, the driver?s floor mat would not be secured in the way it was designed due to differences in the attachment grommets.
• 10173964Mar 12, 2020Equipment. RL: Region Letter There is a possibility that some of the involved 2012-2019 Sequoias received a Toyota Genuine carpet floor mat set that is designed for different model year Sequoia vehicles (model years 2008-2011). If installed, the driver?s floor mat would not be secured in the way it was designed due to differences in the attachment grommets.
• 10173963Mar 12, 2020Equipment. Region email There is a possibility that some of the involved 2012-2019 Sequoias received a Toyota Genuine carpet floor mat set that is designed for different model year Sequoia vehicles (model years 2008-2011). If installed, the driver?s floor mat would not be secured in the way it was designed due to differences in the attachment grommets.
• 10173809Mar 12, 2020Equipment. Dealer email There is a possibility that some of the involved 2012-2019 Sequoias received a Toyota Genuine carpet floor mat set that is designed for different model year Sequoia vehicles (model years 2008-2011). If installed, the driver?s floor mat would not be secured in the way it was designed due to differences in the attachment grommets.
• 10173808Mar 12, 2020Equipment. LSC: There is a possibility that some of the involved 2012-2019 Sequoias received a Toyota Genuine carpet floor mat set that is designed for different model year Sequoia vehicles (model years 2008-2011). If installed, the driver?s floor mat would not be secured in the way it was designed due to differences in the attachment grommets.
• 10172864Feb 25, 2020Equipment. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.
• 10172819Feb 4, 2020Equipment. TT: Some vehicles may experience a ?New software is not compatible with the system.? Pop-up while performing T-SB-0003-20 during the head unit software installation process
• 10171405Jan 27, 2020Equipment. TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a fluid seep. Cases that are determined to be a ?leak? should be repaired accordingly and will be covered under warranty if applicable. Cases that are determined to be a ?seep? should be documented on the repair order and inspected at the…
• 10171457Jan 23, 2020Equipment. TT: In certain cases of leaking air conditioning systems, the root cause of the leak is inadvertently overlooked, causing a repeat repair. To improve customer satisfaction and repair A/C system leaks in one dealer visit, Toyota has developed a set of guidelines for evaluating A/C system components.
• 10171454Jan 23, 2020Engine cooling. TSB: REVISION NOTICE January 23, 2020 Rev1: G1439 The Parts Information, Calibration Information, and Repair Procedure sections have been updated. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13.Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ? 2018 model year Sequoia and 2009 ?
• 10171443Jan 13, 2020Equipment. TSB: OBSOLETE NOTICE January 13, 2020: This bulletin is now obsolete. Please see T-SB-0003-20.
• 10171441Jan 13, 2020Electrical system, Brakes. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0279-17. ? The entire bulletin has been updated. Service Bulletin No. T-SB-0279-17 is obsolete and ANY printed versions should be discarded. Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions…
• 10170730Dec 6, 2019Engine, Equipment. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0058-13. Service Bulletin No. T-SB-0058-13 is obsolete and any printed versions should be discarded. Some 2009 ? 2018 model year Sequoia and 2009 ? 2019 model year Tundra vehicles equipped with a 3UR-FBE engine may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble…
• 10169435Nov 18, 2019Equipment. TT: Some customers who have upgraded their iPhone® to iOS13 are experiencing a condition where the Bluetooth connection disconnects and reconnects. In some instances, this condition causes the Panasonic head unit to reboot when the Bluetooth connection is initiated.
• 10168537Oct 21, 2019Steering. 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…
• 10166024Sep 18, 2019Equipment, 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.
• 10164875Aug 6, 2019Lane departure. TT: In some situations, the Blind Spot Monitor (BSM) Beam Axis may not update during the Blind Spot Monitor Beam Axis Confirmation. The procedure recommended below can be used to confirm the beam axis has been updated when performing the Blind Spot Monitor Beam Axis Confirmation.
• 10164352Jul 16, 2019Equipment, Electrical system. TT: The new DCA-8000 Diagnostic Charger may cause your facility?s Ground Fault Circuit Interrupter (GFCI) breaker to trip. A GFCI breaker can be tripped for various reasons, one of the reasons may be related to the DCA-8000. We are investigating this issue to determine the root cause. Other reasons the GFCI breaker may trip ? Circuit demand is too high for GFCI rating ? Worn out GFCI internal contacts ? Improper…
• 10164335Jul 3, 2019Wheels, Equipment. TSB: Some 2009 ? 2019 model year Toyota vehicles with super chrome wheel finishes may become discolored and/or damaged when aftermarket cleaners, polishes, or brake dust removal products are used on wheels with super chrome finishes. Wheel cleaners and polish that contain acidic substances may damage the clear coat of the wheel, resulting in the undercoating (black) to become visible.
• 10164330Jul 1, 2019Transmission and drivetrain, 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…
• 10162773Jun 19, 2019Electrical system. TT: The new 12V Battery Warranty Testers (DSS-5000 & DCA-8000) require certain information to generate a test result and warranty code. Below is an explanation of what information is required when testing a 12V battery on the new Warranty Battery Testers.
• 10159734Apr 23, 2019Brakes, Engine. TT: Customers may raise a concern of a clunk type noise coming from the engine compartment shortly after start-up, due to repeated depressing of the brake pedal or shortly after the vehicle begins to move.
• 10159725Apr 17, 2019Lane departure, Visibility (wipers, defrost, mirrors), Equipment. TT: The blind spot monitor (BSM) sensor angle inspection is used to confirm that the BSM sensor is within the specified angle before performing axis beam adjustment. When used in conjunction with the repair manual, these BSM tips leverage SSTs and readily available tools to support sensor angle confirmation in varying shop environments.
• 10159700Apr 5, 2019Electrical system, Equipment, Engine cooling. Technical Instructions: Update 4/5/2019: Note added on p. 5. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN K0A ENGINE ECU SOFTWARE UPDATE CERTAIN: 2018 TUNDRA 2018 SEQUOIA (Reference the separate Technical Instructions for 2018 Camry and Sienna)
• 10197472Mar 28, 2019Equipment. Technician Certification Requirements.
• 10158587Mar 14, 2019Engine, Electrical system. Dealer Letter: The engine ECUs in the subject vehicles are equipped with software to monitor the rear oxygen sensors. Under a specific condition, this software may not detect a malfunctioning sensor due to an error in the software. As a result, affected vehicles do not meet certain onboard diagnostic (OBD) regulations.
• 10155248Feb 28, 2019Electrical system. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.
• 10155247Feb 28, 2019Electrical system, 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…
• 10155238Feb 25, 2019Equipment. TT: HVAC drain tube is found to be blocked/clogged.
• 10154800Feb 7, 2019Equipment. TSB: REVISION NOTICE February 7, 2019 Rev2: * Applicability has been updated to include 2010 - 2014 model year Matrix, 2017 - 2019 model year C-HR, 2019 model year Corolla Hatchback, and 2018 - 2019 model year Toyota vehicles. G418 The Introduction and Repair Procedure sections have been updated. March 7, 2017 Rev1: * Applicability has been updated to include 2017 model year Toyota vehicles. Any previous printed…
• 10153265Jan 4, 2019Equipment. TT: In certain cases of leaking air conditioning systems, the root cause of the leak is inadvertently overlooked, causing a repeat repair. To improve customer satisfaction and repair A/C system leaks in one dealer visit, Toyota has developed a set of guidelines for evaluating A/C system components.
• 10153241Dec 20, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10153204Dec 10, 2018Forward collision avoidance, Equipment. TT: When adjusting the Forward Recognition Camera on vehicles with Toyota Safety Sense, it can be difficult to print the repair manual target to the proper size.
• 10152197Nov 15, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152184Nov 13, 2018Electrical system. TSB: REVISION NOTICE November 13, 2018 Rev2: ? The entire bulletin has been updated. March 16, 2018 Rev1: ? Applicability has been updated to include 2018 model year vehicles. ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. T-SB-0103-16 and T-SB-0337-17. ? The…
• 10152618Oct 31, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152617Oct 31, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152596Oct 11, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10152589Oct 5, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10150015Sep 12, 2018Equipment. 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…
• 10150012Sep 11, 2018Brakes, Forward collision avoidance. TSB: All 2016 ? 2018 model year Land Cruiser and 2018 model year Sequoia, Tacoma, and Tundra vehicles are equipped with a Pre-Collision System (PCS), also known as Automatic Emergency Braking (AEB) as part of Toyota Safety Sense. The Pre-Collision System (PCS) defaults its operating mode to ON after each ignition (IG) cycle.
• 10145749Aug 31, 2018Equipment. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
• 10145748Aug 31, 2018Equipment. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
• 10145745Aug 29, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10145739Aug 22, 2018Visibility (wipers, defrost, mirrors), Lane departure. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
• 10149996Aug 17, 2018Lane departure. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
• 10149197Aug 17, 2018Lane departure. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.

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