2011 Chrysler 300 Owner Manual - Page 192

190 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ACC Unavailable Warning If the system turns off, and the EVIC displays "ACC/ FCW Unavailable, Vehicle System Error", there may be a temporary malfunction that limits ACC functionality. Although the vehicle is still drivable under normal When the condition that deactivated the system is no conditions, ACC will be temporarily unavailable. If this longer present, the system will return to the "Adaptive occurs, try activating ACC again later, following a key Cruise Control Off" state and will resume function by cycle. If the problem persists, see your authorized dealer. simply reactivating it. Service ACC Warning NOTE: Installing a vehicle front-end protector or an If the system turns off, and the EVIC displays "ACC/ aftermarket grille or modifying the grille is not recomFCW Unavailable Service Radar Sensor", it indicates mended. Doing so may block the sensor and inhibit ACC there is an internal system fault. Although the vehicle is operation. still drivable under normal conditions, have the system checked by an authorized dealer. • Do not attach or install any accessories near the sensor, including transparent material or aftermarket grilles. Doing so could cause an ACC system failure or malfunction.