2003 Toyota Sienna - Maintenance & Specs
The 2003 Toyota Sienna belongs to a Toyota Sienna lineup that Know Your Ride tracks across 12 model years, from 2000 to 2026. Engine options on record include the 3.0L, 3.0L V6. It is configured as front-wheel drive with an automatic 4-spd. The 2003 sits mid-run, with both earlier (2000) and later (2026) Sienna model years also documented.
It takes 5W-30 full synthetic oil, 4.5 qt with a new filter meeting ILSAC GF-6A. Fluid specs on file include Super Long Life Coolant (SLLC) coolant, DOT 3 brake fluid. Know Your Ride lists 13 scheduled maintenance items for this vehicle, the earliest interval falling at 7,500 miles. Documented torque values include oil drain plug 30 ft-lb, lug nut 76 ft-lb, spark plug 18 ft-lb.
NHTSA complaints for this vehicle cluster around latches/locks/linkages (17), structure (12), power train (11). A representative report reads: "Many things are happening to my truck that's why I am contacting you people to see if I got any callback thank you so much" There is 1 safety recall on record; one covers: TOYOTA IS RECALLING CERTAIN MODEL YEAR 1998 THROUGH 2010 SIENNA PASSENGER VEHICLES MANUFACTURED BETWEEN AUGUST 7, 1997 AND JANUARY 4, 2010, CURRENTLY....
EPA fuel economy is rated at 17 city / 23 highway MPG, 19 MPG combined. Estimated annual fuel cost is about $2,300.
Quick Specs
| Oil viscosity | 5W-30 |
| Oil type | Full Synthetic |
| Oil capacity (w/ filter) | 4.5 qt |
| OEM oil spec | ILSAC GF-6A |
| EPA combined | 19 MPG |
| Coolant | Super Long Life Coolant (SLLC) |
| Open recalls on record | 1 |
| Technical service bulletins | 18 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
Related Vehicles
Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.