2015 Toyota Sienna Service and Repair Manual

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Factory-Grade Data

2015 Toyota Sienna service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications, torque values, and reference data
  • Electrical diagnostics with full wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
  • Diagnostic trouble codes and troubleshooting flow
  • Maintenance schedules and fluid capacities

Trims covered

  • L, Van Cargo
  • L, Van Passenger
  • LE
  • Limited
  • SE
  • XLE

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Maintenance & Lubrication
  • Specifications
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Diagnostic Trouble Codes
  • Technical Service Bulletins
  • Wiring Diagrams

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Vehicle Safety Data

2015 Toyota Sienna Recalls & Complaints

NHTSA #16V85800029/11/2016Component: STRUCTURE:BODY:DOOR

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2011-2016 Toyota Sienna minivans manufactured January 4, 2010, to August 12, 2016. If the power sliding door is unabl

Consequence

If door opens while the vehicle is moving, there would be an increased risk of injury to the vehicle

Remedy

Toyota will notify owners, and dealers will replace the junction block, rear sliding door wire harne

NHTSA #19V55300025/07/2019Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, A

Vantage Mobility International, LLC (Vantage) is recalling certain 2012-2018 AMS Genesis wheelchair vans, built on a Toyota Sienna vehicles. The rubber brake hoses that attach to the rear wheel assem

Consequence

The contact may cause failure of the rear brake hoses, resulting in a loss of vehicle control and re

Remedy

Vantage will notify owners, and dealers will install a set of rear brake hoses that will provide the

NHTSA #15V24000022/04/2015Component: STRUCTURE:BODY:ROOF AND PILLARS

Gulf States Toyota, Inc. (GST) is recalling certain model year 2015 Toyota Sienna vehicles manufactured January 23, 2015, to April 13, 2015, and equipped with non-Toyota-brand overhead entertainment a

Consequence

If the clip was damaged during the entertainment system installation, in the event of a side curtain

Remedy

GST will notify owners, and dealers will replace the trim panel securing clip, free of charge. The

NHTSA #15V23600021/04/2015Component: STRUCTURE:BODY:ROOF AND PILLARS

Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2015 Sienna vehicles manufactured September 1, 2014, to April 13, 2015 and equipped with overhead entertainment accessories ins

Consequence

If the clip was damaged during the entertainment system installation, in the event of a side curtain

Remedy

SET will notify owners, and dealers will replace the trim panel securing clip, free of charge. The

NHTSA #19V41000004/06/2019Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, A

Braun Corporation (Braun) is recalling certain 2014-2019 Toyota Sienna mobility van conversions. The brake lines may have incorrect tube nut fittings installed, which may cause a pressure drop within

Consequence

The reduction in the braking system pressure may cause a loss of braking power in the rear braking s

Remedy

Braun has notified owners, and dealers will install an adaptor to correct the issue, free of charge.

TSB #11028712

Some 2005 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Servic

TSB #11020657

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

TSB #11012744

The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl

TSB #11012743

To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and in

TSB #11012742

Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood

TSB #11012735

Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure i

TSB #11012727

Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the

TSB #11007455

Some 2005 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Servic

Showing the 8 most recent of 347 technical service bulletins on file with NHTSA.

20161226Component: CHILD SEATCrash reported5 injured

BRITAX CAR SEAT. ADVOCATE 70-G3. MANUFACTURER 01/2013.COMPLAINING OF TOP LATCH COMPONENT! WE HAVE OWNED THIS CAR SEAT FOR 3 YEARS AND NEVER HAD AN ACCIDENTWITH IT UNTILNOW. WE WERE SITTING AT A RED LI

20161226Component: CHILD SEATCrash reported5 injured

BRITAX CAR SEAT. ADVOCATE 70-G3. MANUFACTURER 01/2013.COMPLAINING OF TOP LATCH COMPONENT! WE HAVE OWNED THIS CAR SEAT FOR 3 YEARS AND NEVER HAD AN ACCIDENTWITH IT UNTILNOW. WE WERE SITTING AT A RED LI

20180626Component: VEHICLE SPEED CONTROL:CRUISE CONTROLCrash reported3 injured

TL* THE CONTACT OWNED A 2015 TOYOTA SIENNA. THE CONTACT STATED THAT THE CRUISE CONTROL FAILED TO DEACTIVATE WHEN THE BRAKE PEDAL WAS DEPRESSED. AS A RESULT, THE VEHICLE WAS INVOLVED IN A FRONT IMPACT

20160601Component: AIR BAGSCrash reported3 injured

TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE AT A STOP LIGHT, ANOTHER VEHICLE CRASHED INTO THE REAR OF THE CONTACT'S VEHICLE. THE INCIDENT CAUSED THE CONTACT TO CRASH INTO THE PRECEDING VEHICLE. T

20180806Component: SERVICE BRAKESCrash reported2 injured

TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE DRIVING AT AN UNKNOWN SPEED AND MAKING A LEFT TURN, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO RESPOND AS IT TRAVELED TO THE FLOORBOARD. AS A RESULT,

Showing the 5 most serious of 288 complaints filed with NHTSA.

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