GM Chevrolet Avalanche - Manual (Page 89)

Be sure to align the rear
glass side-to-side using
the alignment arrows (G).
5. Apply a firm downward pressure and then push the
rear glass flat against the window frame. Use the
grab handles at the top of the rear glass to
assist you.
6. Push the rear glass flat against the window
frame and push each latch lever up until it locks.
You should hear a click when each latch lever
locks correctly.
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