Toyota 2012 Highlander Owner's Manual page 321

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Installing the antenna
STEP 1
STEP 2
■
About the wrench
After using the included wrench, store it in the glove box for safekeeping.
3-2. Using the audio system
Tighten the antenna by one
hand until it will not turn any
more.
Using the wrench, tighten the
antenna an additional 1/8th
turn (20 to 45 degrees) to
secure it in place.
After tightening the antenna,
remove the wrench.
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