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2003 Toyota Sienna Problems

Find the most common issues based on 2003 Toyota Sienna owner complaints.
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Most Common 2003 Toyota Sienna Problems

Models with electric sliding doors can develop problems with the door mechanism. The cable in the door becomes frayed, which will damage the electric motor.
Multiple cracks may develop on the upper surface of the dashboard. At this time, the only suggested repair is to replace the dashboard.
One or more oxygen sensors may fail resulting in illumination of the Check Engine Light.
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0 Known 2003 Toyota Sienna Brakes Problems

0 Known 2003 Toyota Sienna Drive Train Problems

0 Known 2003 Toyota Sienna Electrical & Lights Problems

3 Known 2003 Toyota Sienna Engine Problems

The mass air flow sensor on higher mileage cars occasionally needs to be cleaned or replaced if sluggish acceleration is experienced or the Check Engine Light is illuminated with a mass air flow me...
Sludge can build up in the engine because Toyota did not recommend frequent enough oil changes. Lexus will sometimes offer a discount on cleaning the engine if necessary. Owners who changed t...
The 3.0L V6 engine used in the 1998-2003 Toyota Sienna has a known issue with the valves that if left unchecked, will cause burned valves and engine performance issues. The engine ‘breathes...

2 Known 2003 Toyota Sienna Exhaust & Emissions Problems

One or more oxygen sensors may fail resulting in illumination of the Check Engine Light.
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 ...

0 Known 2003 Toyota Sienna Heating & Air Conditioning Problems

1 Known 2003 Toyota Sienna Maintenance Problem

The 1998-2003 Toyota Sienna 3.0L V6 may start and stall, or start and run at very low engine speeds when the engine is cold. The issue is a failed or dirty idle air control valve. This valve is m...

3 Known 2003 Toyota Sienna Miscellaneous Problems

Models with electric sliding doors can develop problems with the door mechanism. The cable in the door becomes frayed, which will damage the electric motor.
Multiple cracks may develop on the upper surface of the dashboard. At this time, the only suggested repair is to replace the dashboard.

0 Known 2003 Toyota Sienna Suspension & Steering Problems

9
Known 2003 Toyota Sienna Problems & Complaints

Models with electric sliding doors can develop problems with the door mechanism. The cable in the door becomes frayed, which will damage the electric motor.
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 ...
Multiple cracks may develop on the upper surface of the dashboard. At this time, the only suggested repair is to replace the dashboard.
One or more oxygen sensors may fail resulting in illumination of the Check Engine Light.
The mass air flow sensor on higher mileage cars occasionally needs to be cleaned or replaced if sluggish acceleration is experienced or the Check Engine Light is illuminated with a mass air flow me...
The 3.0L V6 engine used in the 1998-2003 Toyota Sienna has a known issue with the valves that if left unchecked, will cause burned valves and engine performance issues. The engine ‘breathes...
The 1998-2003 Toyota Sienna 3.0L V6 may start and stall, or start and run at very low engine speeds when the engine is cold. The issue is a failed or dirty idle air control valve. This valve is m...
Sludge can build up in the engine because Toyota did not recommend frequent enough oil changes. Lexus will sometimes offer a discount on cleaning the engine if necessary. Owners who changed t...
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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