2014 Chevrolet Impala Owner Manual - Page 261

Driving and Operating Warning (Continued) check mirrors, glance over your shoulder, and use the turn signals. SBZA Detection Zones zone starts at approximately the middle of the vehicle and goes back 5 m (16 ft). 9-53 How the System Works The SBZA symbol lights up in the side mirrors when the system detects a vehicle in the next lane over that is in the side blind zone. This indicates it may be unsafe to change lanes. Before making a lane change, check the SBZA display, check mirrors, glance over your shoulder, and use the turn signals. or right-side mirror display will light up if a vehicle is detected in that blind zone. If the turn signal is activated in the same direction of a detected vehicle, this display will flash as an extra warning not to change lanes. SBZA can be disabled through vehicle personalization. See "Collision/Detection Systems" under Vehicle Personalization on page 5-40. If SBZA is disabled by the driver, the SBZA mirror displays will not light up. When the System Does Not Seem to Work Properly SBZA displays may not come on when passing a vehicle quickly or when towing a trailer. The SBZA detection zones that extend back from the side of the vehicle do not move further back when a trailer is towed. Use caution while changing lanes when towing a trailer. SBZA may alert to objects attached to the vehicle, such as a trailer, bicycle, or object extending out to either side The SBZA sensor covers a zone of approximately one lane over from both sides of the vehicle, or 3.5 m (11 ft). The height of the zone is approximately between 0.5 m (1.5 ft) and 2 m (6 ft) off the ground. This Left Side Mirror Right Side Mirror Display Display When the vehicle is started, both outside mirror SBZA displays will briefly come on to indicate the system is operating. When the vehicle is moving forward, the left-