Cadillac 2010 DTS Owner's Manual page 156

This symbol will change to amber and flash and three
beeps will sound if you cross a detected lane marking
without using the turn signal.
If the LDW symbol does not appear, LDW is not
currently operating and will not warn you.
To change the volume of the warning chime, see Chime
Volume under DIC Vehicle Customization on page 4 79
for more information.
The LDW symbol will not appear when the system is
having difficulty seeing the lines on the road or if the
view of the camera on the windshield is blocked with
mud, dirt, snow, ice, or slush, if the windshield is
damaged, or when weather limits visibility, such as
while driving in fog, rain, or snow conditions. This is
normal operation, the vehicle does not need service.
For cleaning instructions, see Washing Your Vehicle on
page 6 100.
LDW warnings may occasionally occur due to tar
marks, shadows, cracks in the road, or other road
imperfections. This is normal system operation, the
vehicle does not need service.
3-48
message may appear in the DIC to indicate that LDW is
not working properly. If this message remains on after
continued driving, the system needs service. Take your
vehicle to your dealer.
message may appear in the DIC if LDW does not
activate due to a temporary condition.
See Radio Frequency Statement on page 8 20
for information regarding Part 15 of the Federal
Communications Commission (FCC) Rules and
RSS-210/211 of Industry Canada.
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