Black plate (35,1)
Cadillac CTS/CTS-V Owner Manual - 2011
Instruments and Controls
5-35
TRUNK OPEN
(Sedan and Coupe)
This message displays when the
trunk is not closed completely.
Make sure that the trunk is closed
completely.
Engine Cooling System
Messages
ENGINE HOT A/C (AIR
CONDITIONING) OFF
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
See
Engine Coolant Temperature
Gauge on page 5
‑
16
. To avoid
added strain on a hot engine,
the air conditioning compressor
automatically turns off. When the
coolant temperature returns to
normal, the air conditioning
compressor turns back on. You
can continue to drive the vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
Notice:
If you drive the vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible.
Do not increase the engine
speed above normal idling speed.
See
Engine Overheating on
page 10
‑
24
for more information.
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle
to idle until it cools down. If the
message does not clear in a few
minutes or if the overheat light stays
on, shut the vehicle off and have
it serviced before driving again.
See
Engine Coolant Temperature
Warning Light on page 5
‑
24
.
See
Overheated Engine Protection
Operating Mode on page 10
‑
25
for
information on driving to a safe
place in an emergency.
Engine Oil Messages
CHANGE ENGINE OIL SOON
When this message displays, it
means that service is required
for the vehicle. See your dealer.
See
Scheduled Maintenance on
page 11
‑
2
and
Engine Oil on
page 10
‑
10
for more information.
When you reset the Change Engine
Oil Soon message by clearing it
from the display, you still must reset
the engine oil life system separately.
For more information on resetting
the engine oil life system, see
Engine Oil Life System on
page 10
‑
14
.