Buick LaCrosse: Tire Pressure
Tires need the correct amount of air pressure to operate effectively.
Notice:
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.
Overinflated tires, or tires that
have too much air, can
result in:
• Unusual wear.
• Poor handling.
• Rough ride.
• Needless damage from
road hazards.
The Tire and Loading Information label on the vehicle indicates the original equipment tires and the correct cold tire inflation pressures. The recommended pressure is the minimum air pressure needed to support the vehicle's maximum load carrying capacity.
For additional information regarding how much weight the vehicle can carry, and an example of the Tire and Loading Information label, see Vehicle Load Limits. How the vehicle is loaded affects vehicle handling and ride comfort. Never load the vehicle with more weight than it was designed to carry.
When to Check
Check the tires once a month or more. Do not forget the compact spare tire, if the vehicle has one.
The cold compact spare should be at 420 kPa (60 psi). For additional information regarding the compact spare tire, seeCompact Spare Tire.
How to Check
Use a good quality pocket-type gauge to check tire pressure.
Proper tire inflation cannot be determined by looking at the tire.
Check the tire inflation pressure when the tires are cold, meaning the vehicle has not been driven for at least three hours or no more than 1.6 km (1 mi).
Remove the valve cap from the tire valve stem. Press the tire gauge firmly onto the valve to get a pressure measurement.
If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary.
If the inflation pressure is low, add air until the recommended pressure is reached. If the inflation pressure is high, press on the metal stem in the center of the tire valve to release air.
Recheck the tire pressure with the tire gauge.
Return the valve caps on the valve stems to prevent leaks and keep out dirt and moisture.
Tire Terminology and Definitions
Air Pressure: The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory We ...
Tire Pressure Monitor System
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor
the air pressure in your tires and
transmit tire pressure rea ...
See also:
Troubleshooting guide
The system should respond correctly to all voice commands without difficulty.
If problems are encountered, try the following solutions.
Where the solutions are listed by number, try each solution i ...
Navigation
This display is used for the OnStar
or Navigation System Turn-by-Turn
guidance. See OnStar Overview or the navigation manual,
if the vehicle has navigation, for
more information. ...
Warning of people in danger
If the system detects a person in the defined
area in front of the vehicle and if there is the danger
of a collision with this person, a warning
symbol appears in the Control Display and
Hea ...