Buick 2013 Buick Regal, Owner'S Manual

Page: 247 / 422

Black plate (45,1)
Buick Regal Owner Manual - 2013 - CRC - 6/6/12
Driving and Operating 9-45
When the System Does Not
Seem to Work Properly
The following messages may be
displayed on the DIC:
SERVICE PARK ASSIST: If this
message occurs, check the
following conditions:
. The ultrasonic sensors are not
clean. Keep the vehicle's rear
bumper free of mud, dirt, snow,
ice, and slush. For cleaning
instructions, see
Exterior Care
on page 10 ‑ 93 .
. The park assist sensors are
covered by frost or ice. Frost or
ice can form around and behind
the sensors and may not always
be seen; this can occur after
washing the vehicle in cold
weather. The message may not
clear until the frost or ice has
melted.
If the above conditions do not exist,
take the vehicle to your dealer to
repair the system.
PARK ASSIST OFF: If the system
does not activate due to a
temporary condition, this message
displays. This can occur under the
following conditions:
. The driver has disabled the
system.
. An object was hanging out of the
trunk during the last drive cycle.
Once the object is removed, the
system will return to normal
operation.
. The bumper is damaged. Take
the vehicle to your dealer to
repair the system.
.
Other conditions, such as
vibrations from a jackhammer or
the compression of air brakes on
a very large truck, are affecting
system performance.
Fuel
Use of the recommended fuel
is an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com. TOP TIER
gasoline is only available in the
U.S. and Canada.