2011 Ford Taurus Owner Guide 3rd Printing - Page 270

Driving CTA coverage also decreases when parking at shallow angles (refer to figure for approximate zone coverage areas [sensor obstructed for vehicle on left]). CTA detection limitations: Due to the nature of radar technology, there may be certain instances where vehicles entering and exiting the blind spot zones may not be detected. Below is a list of circumstances that may cause non-detection: • Debris build-up on the rear quarter panel fascias • The rear quarter panel radar beams are obstructed or partially obstructed by an adjacently parked vehicle or object. • Approaching vehicles passing at speeds greater than 15 mph (24 km/h) • Severe weather conditions • Driving in reverse faster than 3 mph (5 km/h) • Backing out of an angled parking spot CTA false alerts Due to the nature of radar technology, there may be certain instances when the BLIS௡ will alert with no object present when backing up. This is known as a false alert. Some level of false alerts are normal. Circumstances that may cause a false alert when backing up are backing out of a garage, backing into a parking space, and objects very close to the sensor. False alerts are temporary and self correct. 270 2011 Taurus Owners Guide, 3rd Printing USA (fus)