Contents

Toyota 2004 Sienna Owner's Manual (OM45408U)
- Foreword
  - Important information about this manual
  - Important information about your Toyota
- 1. OPERATION OF INSTRUMENTS AND CONTROLS
  - 1-1 Overview of instruments and controls
  - 1-2 Keys and Doors
  - 1-3 Seats, Seat belts, Steering wheel and Mirrors
  - 1-4 Lights, Wipers and Defogger
  - 1-5 Gauges, Meters and Service reminder indicators
  - 1-6 Ignition switch, Transmission and Parking brake
  - 1-7 Car audio system
  - 1-8 Air conditioning system
  - 1-9 Other equipment
- 2. INFORMATION BEFORE DRIVING YOUR TOYOTA
- 3. STARTING AND DRIVING
- 4. IN CASE OF AN EMERGENCY
- 5. CORROSION PREVENTION AND APPEARANCE CARE
- 6. VEHICLE MAINTENANCE AND CARE
- 7. DO-IT-YOURSELF MAINTENANCE
  - 7-1 Introduction
  - 7-2 Engine and Chassis
  - 7-3 Electrical components
- 8. SPECIFICATIONS
- 9. REPORTING SAFETY DEFECTS FOR U.S. OWNERS

Toyota Sienna 2004 Owner's Manual

Pages 506

Year 2004

Language(s)

of 506

Toyota Sienna 2004 Minivan Specification

The 2004 Toyota Sienna Minivan is engineered to cater to families and individuals seeking reliability, space, and advanced features. It is powered by a 3.3-liter V6 engine that delivers 230 horsepower and 242 lb-ft of torque, paired with a five-speed automatic transmission. This powertrain combination ensures smooth and efficient performance, achieving an EPA fuel economy rating of approximately 17 mpg in the city and 23 mpg on the highway.

The exterior dimensions of the 2004 Sienna include a length of 200 inches, a width of 77.4 inches, and a height of 68.9 inches, providing a spacious interior without compromising maneuverability. The minivan offers seating for up to eight passengers, with a versatile seating arrangement that includes removable second-row captain's chairs and a third-row seat that can be stowed flat into the floor to maximize cargo space.

Safety features in the 2004 Sienna are comprehensive, including anti-lock brakes (ABS), electronic brake-force distribution (EBD), and optional vehicle stability control (VSC). Front, side, and curtain airbags enhance occupant protection, while the rigid body structure is designed to absorb and dissipate crash energy effectively.

The interior of the Sienna is designed with comfort and convenience in mind. Standard features include air conditioning, power windows and locks, and an AM/FM/CD audio system. Higher trim levels offer additional amenities such as a power sliding door, leather upholstery, and a premium JBL audio system. The driver enjoys a commanding view of the road with ergonomically placed controls and an adjustable steering column.

Technological offerings include an optional rear-seat DVD entertainment system and a navigation system to enhance long trips and daily commutes. The 2004 Toyota Sienna Minivan combines practicality, safety, and comfort, making it a compelling choice in the minivan segment.

Toyota Sienna 2004 Minivan F.A.Q.

What is the recommended oil type for a 2004 Toyota Sienna?

The recommended oil type for a 2004 Toyota Sienna is 5W-30. It is important to use the correct viscosity to ensure optimal engine performance and longevity.

How often should the timing belt be replaced on a 2004 Toyota Sienna?

The timing belt on a 2004 Toyota Sienna should be replaced every 90,000 miles or 6 years, whichever comes first. Regular replacement is crucial to prevent engine damage.

What is the towing capacity of the 2004 Toyota Sienna?

The 2004 Toyota Sienna has a towing capacity of up to 3,500 pounds when properly equipped. Ensure the vehicle is fitted with the correct towing package.

How do I reset the maintenance light on my 2004 Toyota Sienna?

To reset the maintenance light, turn the ignition key to the 'ON' position without starting the engine. Press the odometer button until the display reads the total mileage (not trip mileage). Turn the key off. Hold the odometer button while turning the key back to 'ON'. The light will blink and then go out.

What is the correct tire pressure for a 2004 Toyota Sienna?

The recommended tire pressure for a 2004 Toyota Sienna is typically 35 psi for both front and rear tires. Check the owner's manual or the sticker on the driver's side door jamb for confirmation.

How can I improve fuel efficiency in my 2004 Toyota Sienna?

To improve fuel efficiency, maintain proper tire pressure, perform regular maintenance such as oil changes and air filter replacements, drive at moderate speeds, and avoid excessive idling.

Why is my 2004 Toyota Sienna making a squeaking noise when braking?

A squeaking noise when braking could indicate worn brake pads, glazed rotors, or a lack of lubrication on the brake hardware. It is advisable to have the brakes inspected by a professional.

How do I replace the cabin air filter in a 2004 Toyota Sienna?

To replace the cabin air filter, open the glove box and remove the damper by sliding it off the pin. Press in on both sides of the glove box to release it from the dashboard. The cabin air filter is located behind a rectangular cover that can be unclipped and removed. Replace the old filter with a new one and reassemble.

What should I do if my 2004 Toyota Sienna's engine overheats?

If the engine overheats, pull over safely and turn off the engine. Allow it to cool before checking the coolant level. If necessary, add coolant once the engine has cooled. Inspect for leaks or damaged components and seek professional assistance if the problem persists.

How do I program a new keyless entry remote for my 2004 Toyota Sienna?

To program a new keyless entry remote, insert the key into the ignition and turn it to the 'ON' position. Within 5 seconds, press the lock and unlock buttons on the remote simultaneously for 1.5 seconds, then release. Immediately press and hold the lock button for 2 seconds. The door locks should cycle to confirm programming.