2003 TOYOTA PRIUS spark plugs replace

Toyota Maintenance and Repair Support10
Do-It-Yourself Products
When it’s time to replace key wear items on your vehicle, don’t settle for less
than Genuine Toyota Parts. Available exclusively through Toyota dealerships,
Genuine Toyota Parts meet the higheststandards of quality and performance and
are built to exact factory specifications. Here are a few of your vehicle’s compo-
nents that are particularly subject to wear and some benefits of replacing them
with Genuine Toyota Parts.
Genuine Toyota Iridium Spark Plugs*
•Specially designed to work with your vehicle’s ignition system.
•Feature a smaller center electrode than conventional plugs, which translates
into better performance.
•Made with iridium formaximum durability.
Genuine Toyota Brake Pads
•Friction materials selected for optimum performance when matched with
Toyota brake drums or rotors.
•Precision-machined backing plates allow pads to move freely within the
calipers for smooth, efficient braking.
Genuine Toyota Wiper Inserts
•Cutto match the exact length and shape of your vehicle’s wiper blades for a
proper and secure fit.
•Constructed of compression-molded natural rubber — not synthetic — for
superior wiping performance.
Always use the right spark plugs for yourengine. The wrong plugs can have a
negative impact on fuel economy and overall engine performance.*

General Maintenance Information18
Explanation of Maintenance Items
Exhaust Pipes and Mountings
Visually inspect the exhaust pipes, muffler and hangers for cracks, deterioration
and damage. Start the engine and listen carefully for any exhaust gas leakage.
Tighten connections or replace parts as necessary.
Fuel Lines and Connections, Fuel Tank Band and
Fuel Tank Vapor Vent System Hoses
Visually inspect for corrosion, damage, cracks and loose or leaking connections.
Tighten connections or replace parts as necessary.
Fuel Tank Cap Gasket
Visually inspect for cracks, deterioration and damage and replace if necessary.
Inverter Coolant
Drain and flush the cooling system with an ethylene-glycol type coolant. A qual-
ified technician should perform this operation.
Nuts and Bolts on Chassis and Body
Re-tighten the seat-mounting bolts and front/rear suspension member retaining
bolts to specified torque.
Spark Plugs
Replace at specified intervals. Install newplugs of the same type as originally
equipped. A qualified technician should perform this operation.
Steering Gear Box
Inspect for signs of leakage. If you discover any leakage, have it repaired imme-
diately by a qualified technician.
Steering Linkage and Boots
With the vehicle stopped, check for excessive freeplay in the steering wheel.
Inspect the linkage for bending and damage and the dust boots for deterioration,
cracks and damage. Replace any damaged parts. A qualified technician should
perform these operations.
Tire Rotation
Tires should be rotated according to the instructions in the Owner’s Manual.
When rotating tires, check for damage and uneven wear. Replace if necessary.

1 Specific services apply to specific operating conditions. See pages 14-15 for details.2 Required under the terms of the Emission Control Warranty.3Initial inspection at 60,000 miles. Inspect every 15,000 miles thereafter.
Maintenance Log: 2003 Prius
60,000 Miles or 48 Months
60,000 Miles or 48 Months
❑Replace engine air filter
❑Replace engine coolant
❑Replace engine oil and oil filter
❑Replace inverter coolant
❑Replace spark plugs2
❑Rotate tires
❑Inspect the following:__ Ball joints and dust covers
__ Brake lines and hoses
__ Brake linings/drums and brake pads/discs
__ Differential oil
__ Drive belts
3
__ Drive shaft boots
__ Engine valve clearance
Additional Maintenance Items forSpecial Operating Conditions:1
❑Inspect nuts and bolts on chassis and body
❑Replace air conditioning filter
Scheduled Maintenance Log29
Dealer Service Verification:
Date:
Mileage:
__ Exhaust pipes and mountings
__ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
__ Fuel tank cap gasket
__ Radiator and condenser
__ Steering gear box
__ Steering linkage and boots
__ Transmission fluid

1 Specific services apply to specific operating conditions. See pages 14-15 for details.2 Do not replace if replaced at 110,000 miles/88 months.3 Required under the terms of the Emission Control Warranty.
Maintenance Log: 2003 Prius
120,000 Miles or 96 Months
120,000 Miles or 96 Months
❑Replace engine air filter
❑Replace engine coolant
❑Replace engine oil and oil filter
❑Replace inverter coolant
❑Replace spark plugs3
❑Rotate tires
❑Inspect the following:__ Ball joints and dust covers
__ Brake lines and hoses
__ Brake linings/drums and brake pads/discs
__ Differential oil
__ Drive belts
__ Drive shaft boots
__ Engine valve clearance
Additional Maintenance Items forSpecial Operating Conditions:1
❑Inspect nuts and bolts on chassis and body
❑Replace air conditioning filter
Scheduled Maintenance Log37
Dealer Service Verification:
Date:
Mileage:
__ Exhaust pipes and mountings
__ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
__ Fuel tank cap gasket
__ Radiator and condenser
__ Steering gear box
__ Steering linkage and boots
__ Transmission fluid