Lexus RX 350 Service Manual page 4

Bott Dot Road Test Layout
As part of the PDS road test, the vehicle must be driven over a rough road surface or over Bott Dots in
order to check for squeeks and rattles. If a rough surface is not available for this road test, Bott Dots
should be installed on the dealership property where vehicles can be safely driven 5 to 10 mph. (See Bott
Dots installation instructions below, as recommended and provided by TMC Quality Division.) Bott Dots
are commonly available at industrial supply outlets.
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