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:
When driving
Driving, stopping and safe-driving information. ...
Indicators and warning lights
The indicators and warning lights on the instrument cluster, center panel
and dashboard inform the driver of the status of the vehicle’s various systems.
Instrument cluster (vehicles without a ta ...
Ignition switch
“START”—Starter motor on. The key will return to the “ON” position when released.
For starting tips, see Section 3.
“ON”—Engine on and all accessories on.
This is the normal d ...