Cadillac 2010 DTS Owner's Manual page 155

WARNING: (Continued)
LDW will indicate the system is working whenever
it detects either the left or right lane marking. So if
you depart on the side of the lane that LDW is not
detecting, LDW will not warn you.
If you do not carefully maintain your vehicle
position within the lane, vehicle damage, injury, or
death could occur. Even with LDW, always keep
your attention on the road and maintain proper
vehicle position within the lane. Always keep the
windshield clean and do not use LDW in bad
weather conditions.
When the vehicle crosses a detected lane marking, the
LDW symbol will flash and you will hear three beeps.
LDW will not warn you if the turn signal is on or if
you make a sharp maneuver. Before making a lane
change, check the vehicle's mirrors, glance over your
shoulder for vehicles and hazards, and start the
turn signal before changing lanes.
How the System Works
LDW uses a camera located between the inside
rearview mirror and the windshield to detect the lane
markings.
@
(Lane Departure Warning): To turn LDW on and
off, press the LDW control, located by the exterior
headlamp control. An indicator on the control will light to
indicate that LDW is on.
When the vehicle is started, the LDW symbol, located in
the instrument panel cluster, will briefly come on to
indicate that the light is operational.
LDW only operates at speeds of 35 mph (56 km) or
greater. If LDW is turned on when traveling at these
speeds, the LDW symbol will appear green if the system
detects a left or right lane marking.
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