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Home >> Buick >> 2017 >> LaCrosse Base >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup - All Systems >> Repair Instructions >> Sunroof Control Module Programming and Setup (C3U) >> Initialization/Teach Procedure:
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Initialization/Teach Procedure:

Step 1 - Fully close the sunroof glass by holding down the close switch. Once in the closed position, release the switch. Now press the switch again and continue to hold. The glass will go through a teach/learn cycle and begin to move. Continue to hold the switch until the glass returns to a fully closed position.

Step 2 - Fully close the sunroof sunshade by holding down the close switch. Once in the closed position, release the switch. Now press the switch again and continue to hold. The sunshade will go through a teach/learn cycle and begin to move. Continue to hold the switch until the sunshade returns to a fully closed position.

NOTE:

Please note that if the switch is held for more than 10 seconds after the glass or sunshade has completed its teach/learn cycle, the sunroof can throw a 'stuck switch' fault code. If this happens repeat the 2 steps above.