Diagnostic Aids
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- The SOD system has a diagnostic function that is capable of detecting when either sensors is severely blocked by mud, snow, water or ice build up in front of the sensor. When both sensors are blocked, the SOD indicator in the left and right side mirrors are turned ON and the driver information center (DIC) displays CLEAN SIDE BLIND ZONE ALERT. The SOD system transitions back to the normal operating state when the blockage is removed. The DIC message may also activate during extended driving in isolated areas with little infrastructure (guardrails, road signs, trees, etc.) and light traffic.
- Prior to performing diagnostics, clean both sides of the fascia and sensor of any contamination (mud, dirt, bumper stickers, labels, etc.) and retest. The SOD system will not operate if blocked by mud, snow ice slush or water from heavy rain storms.
- The SOD system is disabled if any indicator is reported failed by the door module, if there is a loss of serial data communication, if a DTC is set or the SOD system is disabled by the driver from the DIC.
- The SOD sensors maintain a history buffer of up to 16 SOD events which can be accessed using the scan tool. The history buffer captures sensor interactions with the driver and messages displayed in the DIC.