Toyota 2009 Camry Quick Reference Manual page 309

CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury observe the following precautions.
n When working on the engine compartment
Make sure that the indicator on the "POWER" switch and the "READY"
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indicator are both off.
Keep hands, clothing, and tools away from the moving fan and engine
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drive belt.
Be careful not to touch the engine, power control unit, radiator, exhaust
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manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
Do not leave anything that may burn easily, such as paper or rags, in the
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engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
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are flammable.
n When working near the electric cooling fans or radiator grille
Be sure the "POWER" switch is turned OFF.
With the "POWER" switch in ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. (→P. 298)
Safety glasses
n
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.
NOTICE
n If you remove the air cleaner
Driving with the air cleaner removed may cause excessive engine wear due
to dirt in the air. Also, a backfire could cause a fire in the engine compart-
ment.
4-3. Do-it-yourself maintenance
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