Diagnostic Aids
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
- Side blind zone alert and lane change alert can be disabled in vehicle personalized settings. When disabled, the bulb check of the mirror indicators will also be disabled. A driver information center message will be displayed at start up when the system is disabled. Ensure the system is enabled before attempting to diagnose the system.
- The side blind zone alert system may be temporarily unavailable due to the following:
- A blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information center message will be displayed at start up when the system is disabled. The side blind zone alert system transitions back to the normal operating state when the blockage is removed. Bumper sticks, fascia damage, labels, and heavy rain may also cause this condition. The blockage determination is performed with the vehicle in a drive gear.
- The side blind zone alert system will read the GPS latitude and longitude on the CAN bus and calculate if the vehicle is within a radio astronomy zone. These zones are located in Europe and Japan and require the sensors to be turned off. A driver information center message will be displayed at start up when the system is disabled.
- The side blind zone alert system is designed to ignore stationary objects, however the system may occasionally detect guard rails, signs, trees, shrubs, or other stationary objects as an object in the blind zone. This is normal system operation and does not require service.
- The side blind zone alert system may indicate an object in the side blind zone if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. This is normal operation and does not require service.