If Slow to Calibrate

The ideal calibration condition is driving on a freeway or two lane road with medium traffic. One or more of the following conditions may increase the length of time required to complete the self-calibration procedure:

• Heavy traffic - following too close behind vehicles for long periods (more than 40 min)
• Stop and go or very slow traffic
• Mountain roads
• Constant sharp curves in roadway
• No traffic - if no traffic is available, may need to add vehicle ahead to support calibration
• Limited or no stationary structures on side of the road - need structures such as street signs, guard rails, mail boxes, parked cars, etc.
• Driving in tunnels