Toyota SIENNA 2011 Quick Reference Manual page 661

4-3. Do-it-yourself maintenance
NOTICE
■
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air. Also a backfire could cause a fire in the engine compart-
ment.
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I n f o r ma t i o n P r o v i d e d b y :