Contents

Toyota 2003 Tundra Through Dec. 2002 Prod. Owner's Manual (OM34419U)
- Foreword
  - Important information about this manual
  - Important information about your Toyota
  - Model code
- 1. OPERATION OF INSTRUMENTS ANDCONTROLS
  - 1-1 Overview of instruments and controls
  - 1-2 Keys and Doors
  - 1-3 Seats, Seat belts, Steering wheel and Mirrors
  - 1-4 Lights and Wipers
  - 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 YOURTOYOTA
- 3. STARTING AND DRIVING
- 4. IN CASE OF AN EMERGENCY
- 5. CORROSION PREVENTION ANDAPPEARANCE CARE
- 6. VEHICLE MAINTENANCE AND CARE
- 7. DOITYOURSELF MAINTENANCE
  - 7-1 Introduction
  - 7-2 Engine and Chassis
  - 7-3 Electrical components
- 8. SPECIFICATIONS
- 9. REPORTING SAFETY DEFECTS FOR U.S.OWNERS, UNIFORM TIRE QUALITYGRADING AND CAMPER INFORMATION
- Gas station information

Toyota Tundra 2003 Owner's Manual

Pages 320

Year 2003

Language(s)

of 320

Toyota Tundra 2003 Truck Specification

The 2003 Toyota Tundra is a full-size pickup truck that combines performance, durability, and reliability. It is available with two engine options: a 3.4-liter V6 engine producing 190 horsepower and 220 lb-ft of torque, and a more powerful 4.7-liter V8 engine delivering 240 horsepower and 315 lb-ft of torque. Both engines are paired with a four-speed automatic transmission, with the V6 also offering an optional five-speed manual transmission.

The 2003 Tundra comes in three main trims: Base, SR5, and Limited. It offers a variety of cab configurations, including Regular Cab and Access Cab, which features rear-hinged doors for easier access to the rear seats. The truck's dimensions include a wheelbase of 128.3 inches, an overall length of 217.5 inches for the Regular Cab, and 230.1 inches for the Access Cab. The width stands at 75.2 inches, and the height ranges from 70.1 to 75.4 inches depending on the model and drivetrain.

Payload capacity ranges from 1,560 to 1,925 pounds, while towing capacity is rated up to 7,200 pounds when properly equipped. The suspension system includes a double-wishbone front suspension and a leaf spring rear suspension, providing a balance between on-road comfort and off-road capability. The braking system features front disc brakes and rear drum brakes, with anti-lock braking system (ABS) available as an option.

Interior features vary by trim, with higher trims offering amenities such as power windows, power locks, cruise control, and upgraded audio systems. Safety features include dual front airbags, side-impact door beams, and an optional vehicle stability control system. The 2003 Toyota Tundra is known for its solid build quality, dependable performance, and versatility, making it a popular choice among truck enthusiasts and professionals alike.

Toyota Tundra 2003 Truck F.A.Q.

What is the recommended oil type for a 2003 Toyota Tundra?

The recommended oil type for a 2003 Toyota Tundra is 5W-30. It is important to use the correct oil type to ensure optimal engine performance and longevity.

How can I reset the maintenance light on my 2003 Toyota Tundra?

To reset the maintenance light, turn the ignition key to the "ON" position without starting the engine. Press and hold the odometer reset button, and turn the key to the "OFF" position. Continue holding the button and turn the key back to "ON". The maintenance light should flash and turn off.

What is the towing capacity of a 2003 Toyota Tundra?

The 2003 Toyota Tundra has a towing capacity ranging from 4,800 to 7,100 pounds, depending on the engine and configuration. Ensure your vehicle is properly equipped before towing.

How do I replace the air filter in a 2003 Toyota Tundra?

To replace the air filter, open the hood and locate the air filter housing. Unclip or unscrew the housing cover, remove the old air filter, and install the new one. Ensure it is seated properly before securing the housing cover back in place.

What are common causes of the 2003 Toyota Tundra not starting?

Common causes include a dead battery, faulty starter, or fuel system issues. Check the battery charge, inspect the starter connections, and ensure there is fuel reaching the engine.

How can I improve the fuel efficiency of my 2003 Toyota Tundra?

Improving fuel efficiency can be achieved by maintaining tire pressure, using the recommended oil type, removing excess weight, and ensuring regular maintenance like air filter and spark plug replacements.

What type of transmission fluid is required for a 2003 Toyota Tundra?

The 2003 Toyota Tundra typically requires Toyota Genuine ATF Type T-IV transmission fluid. Always refer to your owner's manual for the most accurate information.

How to troubleshoot a 2003 Toyota Tundra's check engine light?

To troubleshoot, use an OBD-II scanner to read the diagnostic trouble codes (DTCs). The codes will help identify the specific issue. Address the codes accordingly by inspecting related components or consulting a professional mechanic.

What is the recommended tire pressure for a 2003 Toyota Tundra?

The recommended tire pressure for a 2003 Toyota Tundra is typically 29 psi for the front tires and 32 psi for the rear tires. Always check the tire information placard located on the driver's side door jamb for confirmation.

How often should I change the timing belt on a 2003 Toyota Tundra?

For the 2003 Toyota Tundra, it is generally recommended to change the timing belt every 90,000 miles or 6 years, whichever comes first. Refer to the owner's manual for the specific maintenance schedule.