Call Waiting
Call waiting must be supported on the cell phone and enabled by the wireless service carrier.
• Press 
to answer an
incoming call when another call
is active. The original call is
placed on hold.
• Press again to return to
the original call.
• To ignore the incoming call, no action is required.
• Press 
to disconnect the
current call and switch to the call
on hold.
See also:
Electric Power Management
This vehicle has Electric Power
Management (EPM), an advanced control
system. It estimates the battery’s temperature and
state of charge and then adjusts the voltage for
best performance and ext ...
Battery Replacement
To change the batteries, do the following:
1. Loosen the screw on the battery compartment
door located on the left side of the headphone
earpiece.
2. Replace the two AAA batteries in the
compar ...
Under the hood
Unique with its all-four-cylinder powertrain, the Buick Regal relies on the
excellent horsepower-per-liter ratio of the Ecotec engine family to deliver
smart, on-demand performance that is also ve ...