2012 Toyota Sienna XLE, FWDFACTORY OEM SERVICE PROCEDURE

External Pages

's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle. Different variant/trim Section 1 (Engine Control System (1AR-FE) (Service Information)) Section 2 (Automatic Transmission [U660F] [Diagnostics - Introduction]) Section 3 (Automatic Transmission [U760E] [Diagnostics - Introduction]) Section 4 (Engine Mechanical (1AR-FE) (Service Specifications)) Section 5 (Engine Cooling System (1AR-FE) (Service Specifications)) Section 6 (Starting System (1AR-FE) (Service Specifications)) Section 7 (Charging System (1AR-FE) (Service Specifications)) Section 8 (Engine Mechanical (1AR-FE) (Service Information)) Section 9 (Engine Lubrication System (1AR-FE) (Service Information)) Section 10 (Engine Cooling System (1AR-FE) (Service Information)) Section 11 (Ignition System [1AR-FE] (Inspection)) Section 12 (Charging System [1AR-FE] [Diagnostics & Symptom Tests]) Section 13 (Emission Control System (1AR-FE) (Service Information)) Section 14 (Automatic Transmission System (U660F) (Service Information)) Section 15 (Automatic Transmission System (U760E) (Service Information)) Section 16 (Transfer Case (Service Information)) Section 17 (Engine Control System [1AR-FE] [Diagnostic Codes [P1604-U0101] & Circuit Tests]) Section 18 (Fuel System (1AR-FE) (Inspection)) Section 19 (Engine Control System [1AR-FE] [Diagnostic Codes] [P0010-P0420]) Section 20 (Starting System [1AR-FE] (Service Information)) Section 21 (Fuel System [1AR-FE] (Service Information)) Section 22 (Engine Intake System (1AR-FE) (Inspection)) Section 23 (Engine Control System [1AR-FE] [Diagnostic Codes] [P043E-P1603]) Section 24 (Intake Air Control Valve (Intake Air Control SYS) (1AR-FE) (Inspection)) Section 25 (Intake System / Exhaust System (1AR-FE) (Service Information)) Section 26 (Automatic Transmission [U760E] [Diagnostic Codes & Circuit Tests]) Section 27 (Vacuum Switching Valve (Intake Air Control SYS) (1AR-FE) (Inspection)) Section 28 (Engine Cooling System (1AR-FE) (Inspection)) Section 29 (Engine Lubrication System (1AR-FE) (Inspection)) Section 30 (Charging System (1AR-FE) (Service Information)) Section 31 (Emission Control System (1AR-FE) (Inspection)) Section 32 (Engine Cooling Fan System [1AR-FE] [Diagnostics & Circuit Tests]) Section 33 (Starting System (1AR-FE) (Inspection)) Section 34 (Automatic Transmission [U660F] [Diagnostic Codes & Circuit Tests]) Section 35 (Active Torque Control 4WD System [Diagnostics - Introduction]) Section 36 (Active Torque Control 4WD System [Diagnostic Codes & Circuit Tests])

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.