Pro-Line Boats 2008 23 Sport Owner's Manual page 20

Warning: Trim tabs can cause a dramatic change in the attitude and heading of your
boat. Adjust them in small increments when in open water and clear of any obstructions.
Trim Tab Indicator Switch
The trim tabs come with a trim tab indicator switch when trim tabs are
factory installed. The waterproof indicator and switch lights up to let
you know exactly where your trim tabs are.
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