Buick Verano Owner's Manual page 300

The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire pressure warning light,
defined above, flashes for about
one minute and then stays on for
the remainder of the ignition cycle.
A DIC warning message may also
display. The malfunction light and
DIC warning message, if equipped,
come on at each ignition cycle until
the problem is corrected. Some of
the conditions that can cause these
to come on are:
One of the road tires has been
replaced with the spare tire.
The spare tire does not have a
TPMS sensor. The malfunction
light and the DIC message,
if equipped, should go off after
the road tire is replaced and the
sensor matching process
is performed successfully.
See "TPMS Sensor Matching
Process" later in this section.
The TPMS sensor matching
process was not done or not
completed successfully
after rotating the tires.
The malfunction light and the
DIC message, if equipped,
should go off after successfully
completing the sensor matching
process. See "TPMS Sensor
Matching Process" later in this
section.
One or more TPMS sensors
are missing or damaged.
The malfunction light and the
DIC message, if equipped,
should go off when the TPMS
sensors are installed and the
sensor matching process is
performed successfully.
See your dealer for service.
Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See
Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning
properly, it cannot detect or signal a
low tire condition. See your dealer
for service if the TPMS malfunction
light and DIC message, if equipped,
come on and stay on.
.