2003 Toyota Sienna Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Toyota Sienna
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2003 Toyota Sienna ProblemsCheck Engine Light Due to EVAP System
The Check Engine Light may illuminate due to an evaporative emission (EVAP) system fault. Our technicians tell us these EVAP system faults can be difficult to diagnose but it is not uncommon to find a failed charcoal canister or a loose or worn gas cap.
Multiple cracks may develop on the upper surface of the dashboard. At this time, the only suggested repair is to replace the dashboard.
2003 Toyota Sienna QuestionsAC quits cooling after about 1 to 1-1/2 hours continuous use and ac light blinks (1 answer)
After non-use for a while it will cool again. New condenser and Freon.
It passed the fuel cap test.
2003 Toyota Sienna RecallsToyota Recalls 1998–2010 Siennas Due to Problems with Spare Tire Carrier and Assembly Cable
Toyota is recalling 1998–2010 Sienna models manufactured or registered in twenty-two Eastern and Midwestern states because of problems with the spare tire carrier and assembly cable due to road salt corrosion. This may cause the spare tire assembly cable to break and the spare tire to separate from the vehicle, increasing the risk of a crash. Toyota will notify owners via letter with instructions on how to remedy the problem. For a list of the affected states, call Toyota at 1-800-331-4331.