2003 Toyota Sequoia Service and Repair Manual

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Factory-Grade Data

2003 Toyota Sequoia 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

  • Limited
  • SR5

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

2003 Toyota Sequoia Recalls & Complaints

NHTSA #10V17600030/04/2010Component: ELECTRONIC STABILITY CONTROL (ESC)

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2003 SEQUOIA PASSENGER VEHICLES MANUFACTURED FROM APRIL 1, 2002 THROUGH APRIL 17, 2003. THE CENTER POSITION OF THE STEERING ANGLE SENSOR (SAS) MAY NOT BE STORED

Consequence

SHOULD THIS OCCUR, THE VEHICLE MAY NOT ACCELERATE AS QUICKLY AS THE DRIVER EXPECTS, INCREASING THE R

Remedy

TOYOTA WILL NOTIFY OWNERS AND DEALERS WILL REFLASH THE ECU. IF THE REFLASH CANNOT BE COMPLETED ON A

NHTSA #19V74100017/10/2019Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

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

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occupants res

Remedy

Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver in

NHTSA #05V22500017/05/2005Component: SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT

ON CERTAIN SPORT UTILITY VEHICLES, DUE TO A MANUFACTURING ISSUE IN THE FRONT SUSPENSION LOWER BALL JOINT, THERE IS A POSSIBILITY THAT THE SURFACE OF THE BALL OF THE JOINT MAY HAVE BEEN SCRATCHED. THE

Consequence

THE LOWER BALL JOINT MAY SEPARATE FROM THE KNUCKLE CAUSING LOSS OF STEERING CONTROL AND A CRASH COUL

Remedy

DEALERS WILL REPLACE THE FRONT SUSPENSION LOWER BALL JOINTS FREE OF CHARGE. THE RECALL BEGAN ON JUL

NHTSA #15V28500013/05/2015Component: AIR BAGS

Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015 that they are recalling certain model year 2004 Sequoia vehicles manufactured August 18, 2003, to August 19, 2004,

Consequence

In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co

Remedy

2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-285 are u

NHTSA #15V28600013/05/2015Component: AIR BAGS

Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015, that they are recalling 2005-2007 Lexus SC, Toyota Corolla, Corolla Matrix, Sequoia, and Pontiac Vibe, and 2005-2

Consequence

In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co

Remedy

2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-286 are u

NHTSA #18V88300012/12/2018Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2002-2005 Lexus SC and Toyota Sequoia, 2003-2005 Toyota Corolla and Tundra, and 2003-2007 Pontiac Vibe vehicles. These vehicles

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occupants res

Remedy

Toyota will notify the Toyota and Lexus owners. General Motors will notify the Pontiac Vibe owners.

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 #11007445

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 #11007444

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 #11007443

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

Showing the 8 most recent of 164 technical service bulletins on file with NHTSA.

20060911Component: ELECTRICAL SYSTEMCrash reported4 injured

WHEN WE FIRST BOUGHT THE VEHICLE THE TRAC SYSTEM LIGHTS KEPT COMING ON AND THE BRAKES FELT MUSHY; WE TOOK IT IN TO TOYOTA AND THEY REPLACED THE COMPUTER SYSTEM WHICH SEEMED TO RECTIFY THE PROBLEM. THE

20060911Component: EQUIPMENTCrash reported4 injured

WHEN WE FIRST BOUGHT THE VEHICLE THE TRAC SYSTEM LIGHTS KEPT COMING ON AND THE BRAKES FELT MUSHY; WE TOOK IT IN TO TOYOTA AND THEY REPLACED THE COMPUTER SYSTEM WHICH SEEMED TO RECTIFY THE PROBLEM. THE

20060911Component: SERVICE BRAKES, HYDRAULICCrash reported4 injured

WHEN WE FIRST BOUGHT THE VEHICLE THE TRAC SYSTEM LIGHTS KEPT COMING ON AND THE BRAKES FELT MUSHY; WE TOOK IT IN TO TOYOTA AND THEY REPLACED THE COMPUTER SYSTEM WHICH SEEMED TO RECTIFY THE PROBLEM. THE

20211004Component: STEERINGCrash reported3 injured1 fatalities

Unknown

20211004Component: WHEELSCrash reported3 injured1 fatalities

Unknown

Showing the 5 most serious of 875 complaints filed with NHTSA.

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