At times, the position of the vehicle on the map could be inaccurate due to one or more of the following reasons: • The road system has changed.
• The vehicle is driving on slippery road surfaces such as sand, gravel, or snow.
• The vehicle is traveling on winding roads or long straight roads.
• The vehicle is approaching a tall building or a large vehicle.
• The surface streets run parallel to a freeway.
• The vehicle has been transferred by a vehicle carrier or a ferry.
• The current position calibration is set incorrectly.
• The vehicle is traveling at high speed.
• The vehicle changes directions more than once, or the vehicle is turning on a turn table in a parking lot.
• The vehicle is entering and/or exiting a parking lot, garage, or a lot with a roof.
• The GPS signal is not received.
• A roof carrier is installed on the vehicle.
• Tire chains have been installed.
• The tires are replaced or worn.
• The tire pressure for the tires is incorrect.
• This is the first navigation use after the map data is updated.
• The 12-volt battery is disconnected for several days.
• The vehicle is driving in heavy traffic where driving is at low speeds, and the vehicle is stopped and started repeatedly.
Global Positioning System (GPS)
Problems with Route GuidanceHigh Strength Low Alloy Steel
This information provides repair recommendations and general guidelines for
steel classified as High Strength Low Alloy Steel, also known
as HSLA. This type of steel normally has a tensile strength range from 300-700
MPa.
General Motors recommends the following when repairing or replacing th ...
Installation Procedure
Remove the front wheelhouse rear panel brace (1) from service panel.
Drill 8 mm (5/16 in) for plug welding instead of the adhesive noted from
the front area of the original panel.
Note: Double the number of drills at the flange where front
wheelhouse panel and front comp ...
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 irregula ...