2010 Buick Lucerne Owner's Manual - Page 199

StabiliTrak® Indicator Light This light comes on briefly while starting the engine. See StabiliTrak® System on page 5‑6 and DIC Warnings and Messages on page 4‑55 for more information. Lane Departure Warning (LDW) Light For vehicles with the lane departure warning system, this light briefly comes on green while starting the vehicle. If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light will then go off. This light may come on while the vehicle is first driven and the STABILITRAK NOT READY message will appear in the Driver Information Center (DIC). See StabiliTrak® System on page 5‑6 for more information. If the light stays on, or comes on while driving a SERVICE STABILITRAK message will appear in the DIC. This indicates that there may be a problem with the StabiliTrak® system and the vehicle may need service. When this warning light is on and the SERVICE STABILITRAK message appears on the DIC, the system will not assist with controlling the vehicle. When the system is active, the light will flash while the system is assisting with controlling the vehicle. 4-39 If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light then goes off. This light also comes on green if the system detects a left or right lane marking. It flashes, changes to amber, and three beeps sound, if a detected lane marking is crossed without using a turn signal. For more information, see the Index in the Navigation Manual.