DIC buttons

Hi and thanks for using 2CarPros.com To the best of my knowledge, there are no serviceable parts related to this component other than the switch itself. Try this first, turn the key to the run position (engine off) and pump the gas pedal three times to the floor within five seconds. That should turn off the change oil soon light and things may return to normal. If that does not help, disconnect the battery for a full ten minutes to see if it resets. Again, if that does not help, the only other serviceable item is the switch itself. Here are directions for replacement:

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CONVERSION CALCULATOR

1999 Buick Park Avenue V6-3.8L VIN K
Vehicle » Accessories and Optional Equipment » Driver/Vehicle Information Display » Service and Repair
SERVICE AND REPAIR
Driver Information Center Switch Replacement
REMOVAL PROCEDURE
Remove the IP cluster trim plate.
Disconnect the electrical connector.
Remove the fasteners (2) from the driver information switch.
Remove the driver information switch.
INSTALLATION PROCEDURE
Install the driver information switch (3) to the IP cluster trim plate (1).
NOTE: Refer to Fastener Notice in Cautions and Notices.
Install the fasteners (2) to the drivers information switch.
Tighten
Tighten the fasteners to 2 N.m (18 lb in) .
Connect the electrical connector.
Install the IP cluster trim plate.
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Let me know if this helps or if you have other questions.

Take care,
Joe