Cadillac XT4 Owner's Manual page 326

example of the Tyre and Loading
Information label and its location.
Also see Tyre Pressure 0 321.
The TPMS can warn about a low tyre
pressure condition but it does not
replace normal tyre maintenance. See
Tyre Inspection 0 327, Tyre Rotation
0 328, and Tyres 0 319.
Caution
Tyre sealant materials are not all
the same. A non-approved tyre
sealant could damage the TPMS
sensors. TPMS sensor damage
caused by using an incorrect tyre
sealant is not covered by the
vehicle warranty. Always use only
the GM approved tyre sealant
available through your dealer or
included in the vehicle.
Factory-installed Tyre Inflater Kits use
a GM-approved liquid tyre sealant.
Using non-approved tyre sealants
could damage the TPMS sensors. See
Tyre Sealant and Compressor Kit 0 334
for information regarding the inflator
kit materials and instructions.
TPMS Malfunction Light and
Message
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
tyre pressure warning light flashes for
about one minute and then stays on
for the remainder of the ignition cycle.
A DIC warning message also displays.
The malfunction light and DIC
warning message 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 tyres has been
replaced with the spare tyre. The
spare tyre does not have a TPMS
sensor. The malfunction light and
DIC message should go off after the
road tyre is replaced and the sensor
matching process is performed
successfully. See TPMS Sensor
Matching Process following.
The TPMS sensor matching process
was not done or not completed
successfully after rotating the tyres.
The malfunction light and the DIC
message should go off after
VEHICLE CARE
successfully completing the sensor
matching process. See "TPMS
Sensor Matching Process" following.
One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and the
sensor matching process is
performed successfully. See your
dealer for service.
Replacement tyres or wheels do not
match the original equipment tyres
or wheels. Tyres and wheels other
than those recommended could
prevent the TPMS from functioning
properly. See Buying New Tyres
0 330.
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 tyre pressure condition. See your
dealer for service if the TPMS
malfunction light and DIC message
come on and stay on.
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