2008 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
- CE
- LE
- XLE Limited
- 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
Toyota is recalling certain model year 2004-2005 Sienna vehicles manufactured January 10, 2003, through August 10, 2005; and model year 2007-2009 Sienna vehicles manufactured February 20, 2007, throug
If the shift lever is moved out of the Park position without the brake applied, the transmission wil
Toyota will mail interim notifications to owners beginning in late October 2013. When parts are ava
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2009 SIENNA AND 2009 LEXUS GX PASSENGER VEHICLES. THE VEHICLE CAPACITY WEIGHT ON THE TIRE AND LOADING INFORMATION LABEL AND THE GVWR ON THE CERTIFI
THE GVWR IS INSUFFICIENT FOR THE LOAD CARRYING CAPACITY OF THE VEHICLES.
TOYOTA WILL NOTIFY OWNERS INSTRUCTING THEM TO RETURN THEIR VEHICLE TO A TOYOTA OR LEXUS DEALER FOR A
TOYOTA IS RECALLING CERTAIN MODEL YEAR 1998 THROUGH 2010 SIENNA PASSENGER VEHICLES MANUFACTURED BETWEEN AUGUST 7, 1997 AND JANUARY 4, 2010, CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, D
THE CABLE MAY BREAK DUE TO EXCESSIVE CORROSION AND THE SPARE TIRE MAY SEPARATE FROM THE VEHICLE, POS
TOYOTA WILL NOTIFY OWNERS WITH AN INTERIM LETTER INITIALLY INSTRUCTING THEM TO BRING THEIR VEHICLE T
TOYOTA IS RECALLING 27,080 MODEL YEAR 2005 THROUGH 2010 PASSENGER CARS BUILT FROM SEPTEMBER 1, 2005 TO MAY 4, 2009. THESE VEHICLES WERE NOT EQUIPPED WITH LOAD CARRYING CAPACITY MODIFICATION LABELS WH
INCORRECT LOAD CARRYING CAPACITY MODIFICATION LABELS COULD RESULT IN THE VEHICLE BEING OVERLOADED, I
TOYOTA WILL NOTIFY OWNERS AND PROVIDE THEM WITH A NEW, ACCURATE LABEL TO BE INSTALLED OVER THE INACC
SOUTHEAST TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2011 PASSENGER VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS."
A DRIVER MAY OVERLOAD A VEHICLE WHICH MAY INCREASE THE RISK OF A CRASH.
DEALERS WILL MAIL TO CONSUMERS THE CORRECTED LABEL OR THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS
GULF STATES TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2010 VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VE
THIS DOES NOT MEET THE STANDARD REQUIREMENTS.
DEALERS WILL MAIL TO CONSUMERS THE CORRECTED LABEL OR THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS
Southeast Toyota Distributors, LLC (SET) is recalling certain 2005-2011 4Runner, Highlander, Sequoia, and Sienna, 2005-2010 Avalon and Tundra, 2006-2008 Camry Solara, 2006-2010 Highlander hybrid, 2006
If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.
SET will notify owners, and dealers will disconnect the seat heaters, free of charge, and refund the
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 115 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2008 TOYOTA SIENNA. THE CONTACT WAS STOPPED IN A PARKING SPACE WHEN THE BRAKES WERE DEPRESSED AND THE VEHICLE ACCELERATED TO APPROXIMATELY 25 MPH. THE VEHICLE CRASHED THROUGH TH
Throttle stuck while in reverse pulling out of a parking spot and accelerated resulting in backing into the building
WHILE ATTEMPTING TO MANEUVER IN REVERSE, EXPERIENCED SUDDEN UNINTENDED ACCELERATION, CAUSING COLLISION WITH GUARDRAIL
TL* THE CONTACT OWNS A 2008 TOYOTA SIENNA. WHILE THE VEHICLE WAS PARKED, THE VEHICLE STARTED TO ROLL AWAY AND ROLLED OVER THE CONTACT. THE VEHICLE CRASHED INTO A BUSH. THE CONTACT SUSTAINED HEAD, BACK
WAS T-BONED BY SOMEONE WHO FAILED TO YIELD ON GREEN. HE WAS GIVEN A TICKET. I WAS THROUGH THE INTERSECTION GOING 34.8 MILES/HOUR AT THE TRIGGERING EVENT. HAS TOYOTA DO INSPECTION ON CAR AND "CHIP".
Showing the 5 most serious of 570 complaints filed with NHTSA.
