Replacement Guide / Toyota / Sienna / 2004
Replacement guide
2004 Toyota Sienna
Owner-reported component and symptom data for this model year.
What are you trying to fix?
Replacement-related components reported for this vehicle
46 owner reports involving the door latch
View replacement guide9 owner reports involving the headlights
View replacement guide7 owner reports involving the battery
View replacement guide5 owner reports involving the brake pads
View replacement guide4 owner reports involving the radiator
View replacement guide4 owner reports involving the power window regulator
View replacement guide3 owner reports involving the brake rotor
View replacement guide3 owner reports involving the thermostat
View replacement guide1 owner report involving the alternator
View replacement guide1 owner report involving the catalytic converter
View replacement guide1 owner report involving the heater core
View replacement guide1 owner report involving the brake lights
View replacement guide1 owner report involving the water pump
View replacement guide1 owner report involving the timing belt
View replacement guideBrowse by system
Starting / charging
- Battery — 7 owner reports
- Alternator — 1 owner report
Fuel / engine
- Catalytic converter — 1 owner report
- Timing Belt — 1 owner report
Cooling / HVAC
- Radiator — 4 owner reports
- Thermostat — 3 owner reports
- Heater core — 1 owner report
- Water Pump — 1 owner report
Brakes
- Brake pads — 5 owner reports
- Brake rotor — 3 owner reports
Lighting / visibility
- Headlights — 9 owner reports
- Brake lights — 1 owner report
Body / access
- Door latch — 46 owner reports
- Power window regulator — 4 owner reports
About this data
Component evidence comes from structured complaint categories and reviewed component mentions in complaint summaries. Owner-situation evidence comes from reviewed symptom language in complaint summaries. Reports are signals, not diagnoses.
How to read the counts
Counts are distinct owner reports involving a canonical component. They are not a failure rate, probability, or share of vehicles sold. A complaint involving a component does not prove that component caused the problem. Parent NHTSA system buckets are not counted as the part itself.