2012 Toyota Sienna Service and Repair Manual
2012 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.
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TOYOTA IS RECALLING CERTAIN MODEL YEAR 2011 THROUGH 2012 SIENNA VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NUMBER 110, "TIRE SELECTIONS AND RIMS." T
INCORRECT INFORMATION ON THE VEHICLE PLACARD MAY LEAD TO TIRE OVERLOADING AND POSSIBLY CAUSE TIRE FA
TOYOTA WILL NOTIFY OWNERS, AND WILL PROVIDE A REMEDY WHEN IT IS AVAILABLE. TOYOTA WILL MAIL OUT A C
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
If door opens while the vehicle is moving, there would be an increased risk of injury to the vehicle
Toyota will notify owners, and dealers will replace the junction block, rear sliding door wire harne
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
The contact may cause failure of the rear brake hoses, resulting in a loss of vehicle control and re
Vantage will notify owners, and dealers will install a set of rear brake hoses that will provide the
GULF STATES TOYOTA IS RECALLING CERTAIN MODEL YEAR 2012 4RUNNER AND SIENNA VEHICLES, EQUIPPED WITH NON-ORIGINAL EQUIPMENT REMOTE ENGINE STARTERS. A MALFUNCTION IN THE AUDIOVOX ELECTRONICS BRAND REMOT
IF THIS CONDITION OCCURS, ANTILOCK BRAKING AND STABILITY CONTROL MAY BE LOST, INCREASING THE RISK OF
GULF STATES TOYOTA WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE REMOTE ENGINE STARTER WITH A NEW
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Si
An inflator explosion may result in sharp metal fragments striking the driver or other occupants res
Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver in
Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, an
If the front passenger seat occupant sensing system is out of calibration, the front passenger airba
Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection
Southeast Toyota is recalling certain model year 2008 and 2010-2013 Toyota Tundra, 2010-2012 Rav4, 2012 Toyota Sequoia, 2010-2011 Toyota Corolla, 2010-2011 Toyota Camry and Camry Hybrid, 2010-2013 Toy
An inaccurate label could lead to owners overloading their vehicles and tires. An overloaded vehicl
Southeast Toyota will notify owners and provide a corrected label with instructions concerning its i
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2012 Toyota 4Runner, Corolla, Corolla Matrix, Sienna, Yaris, Scion xB, Lexus ES350, GX460, IS-F, IS250, IS350, IS250C, IS350C, an
An inflator rupture may result in metal fragments striking the vehicle occupants resulting in seriou
Toyota will notify the Toyota, Scion and Lexus owners. General Motors will contact the Pontiac owne
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
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
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
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
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
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
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
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
Showing the 8 most recent of 372 technical service bulletins on file with NHTSA.
ON AUGUST 27, 2016 I WAS DRIVING OUR 2012 TOYOTA SIENNA ON AN INTERSTATE HIGHWAY. TRAFFIC WAS TERRIBLE AND I REAR-ENDED ANOTHER VEHICLE IN STOP-AND-GO TRAFFIC. THE IMPACT WAS MINOR, BUT THE ENGINE CAU
ON AUGUST 27, 2016 I WAS DRIVING OUR 2012 TOYOTA SIENNA ON AN INTERSTATE HIGHWAY. TRAFFIC WAS TERRIBLE AND I REAR-ENDED ANOTHER VEHICLE IN STOP-AND-GO TRAFFIC. THE IMPACT WAS MINOR, BUT THE ENGINE CAU
ON AUGUST 27, 2016 I WAS DRIVING OUR 2012 TOYOTA SIENNA ON AN INTERSTATE HIGHWAY. TRAFFIC WAS TERRIBLE AND I REAR-ENDED ANOTHER VEHICLE IN STOP-AND-GO TRAFFIC. THE IMPACT WAS MINOR, BUT THE ENGINE CAU
TL* THE CONTACT OWNS A 2012 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE DRIVING 75 MPH, THE VEHICLE STALLED WITHOUT WARNING. THERE WAS NO BRAKING POWER AND AS THE CONTACT ATTEMPTED TO GUIDE THE VEHIC
TL* THE CONTACT OWNS A 2012 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE TRAVELING 55 MPH, ANOTHER VEHICLE CRASHED INTO THE CONTACT'S VEHICLE TWICE; ONCE FROM THE PASSENGER'S SIDE DOOR AREA AND AGAIN
Showing the 5 most serious of 331 complaints filed with NHTSA.
Need a manual for a different year? Browse every Toyota Sienna we cover.
2025
Toyota Sienna
$53.99
2024
Toyota Sienna
$53.99
2023
Toyota Sienna
$53.99
2022
Toyota Sienna
$53.99
2021
Toyota Sienna
$53.99
2020
Toyota Sienna
$53.99
2019
Toyota Sienna
$53.99
2018
Toyota Sienna
$53.99
2017
Toyota Sienna
$34.99
2016
Toyota Sienna
$34.99
2015
Toyota Sienna
$34.99
2014
Toyota Sienna
$34.99
+15
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