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 GuidanceSteering Wheel Controls
For vehicles with audio steering wheel controls, some audio controls can be adjusted
at the steering wheel.
: For vehicles with a Bluetooth,
OnStar, or navigation system, press to interact with those systems.
: Press to silence the vehicle speakers
only. Press again to turn the sound on. ...
Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying General Motors.
If NHTSA receives similar complaints, it may open an investig ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Disabling and Enabling.
Disconnect the negative battery cable. Refer to Battery N ...