Toyota Yaris: Iridium-tipped spark plugs
Second generation (XP90; 2005–2010) / Toyota Yaris XP90 2005–2010 Owner's Manual / Information before driving your Toyota / Iridium-tipped spark plugs

Your engine is fitted with iridium-tipped spark plugs.
NOTICE.
Use only iridium-tipped spark plugs.
Do not adjust gaps for engine performance or smooth driveability.
Facts about engine oil consumption
FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of lubricating and cooling the inside of
the engine, and plays a major role in maintaining the engine in proper working order.
ENGINE ...
Brake system
The tandem master cylinder brake system is a hydraulic system with two separate
sub-systems. If either sub-system should fail, the other will still work. However,
the pedal will be harder to press ...
See also:
Outer panel installation torque
...
Replacing light bulbs
The following illustrations show how to gain access to the bulbs. When replacing
a bulb, make sure the ignition switch and light switch are off. Use bulbs with the
wattage ratings given in the tab ...
Replacing wheels
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as bending, cracks or heavy corrosion, the wheel
should be replaced.
If you fail to replace a damaged wheel, the tire may slip off the ...