GMC Canyon 2023 Owner's Manual page 269

GMC Canyon Owner Manual (GMNA-Localizing-MidEast-16512225) - 2023 -
CRC - 3/20/23
While in Air Down Mode, after all tires have
been deflated lower than the vehicle s
recommended tire pressure, the low tire
pressure warning light and the DIC warning
message may come on for all tires.
Due to late air adjustment in a tire, the tire
pressure may change by 4 to 8 kpa (0.6 to
1.2 psi) after a few minutes, once you have
stopped deflation.
Ensure that the target pressure you select is
above or below your vehicle s current tire
pressures by a least 20 kpa (3 psi).
If the tire is underinflated or overinflated by
more than 35 kPa (5 psi) from the target
pressure you selected in Step 6, the horn
will sound multiple times and the turn
signal lamp will continue to flash for several
seconds after tire pressure adjustment stops.
To correct the pressure, while the turn
signal lamp is still flashing, add air to inflate
the tire or briefly press the center of the
valve stem to deflate the tire. When the
target pressure you selected in Step 6 is
reached, the horn sounds once and the turn
signal lamp will stop flashing and turn solid
for several seconds before turning off.
If the turn signal lamp does not flash within
15 seconds after starting to inflate the tire,
the Air Down Mode has not been activated
or is not working.
If the hazard warning flashers are on, the
Air Down Mode visual feedback will not
work properly.
The Air Down Mode will not work properly
under the following conditions:
There is interference from an external
device or transmitter.
The air pressure from the inflation device
is not sufficient to inflate the tire.
There is a malfunction in the TPMS.
There is a malfunction in the horn or turn
signal lamps.
The TPMS sensor identification code is not
registered to the system.
The TPMS sensor battery is low.
The vehicle is not in P (Park).
The vehicle is off.
START was not pressed after selecting the
target tire pressure in the Air Down
Mode app.
If the Air Down Mode does not operate due
to TPMS interference, move the vehicle
about 1 m (3 ft) back or forward and try
Vehicle Care
again. If the Air Down Mode is not working,
use a tire pressure gauge to confirm tire
pressure.
Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
Tire overloading and overheating,
which could lead to a blowout
Premature or irregular wear
Poor handling
Reduced fuel economy for
internal combustion engine
vehicles
Reduced range for electric vehicles
Overinflated tires, or tires that have
too much air, can result in:
Unusual wear
Poor handling
Rough ride
Needless damage from road
hazards
269