IMPORTANT: Always be careful of traffic conditions and safety around the vehicle Your test vehicle may not be equipped with all safety systems Front Camera - Windshield GM Service Programing System (SPS) programming is required after replacementSome vehicles will immediately begin calibration after programming, vehicle other may require calibration to be started using GDS2.Refer to Service Information for specific programming and calibration instructions after replacementEnsure windshield glass has been properly installed, is clean, NOT damaged or cracked and camera is not damaged, dirty or obstructedMake sure the vehicle is being driven in an area conducive to calibration. An ideal calibration environment is a two-lane divide highway with lane makings on both side of the lane, driving the vehicle between 56-90km/h (35-56 MPH).Avoid the following:Heavy trafficStop and go trafficMountain roadsCurves in the roadwayAdverse weather, such as snow, fog, or extreme rain, or driving directly into the sunLong Range Radar Sensor Module GM Service Programing System (SPS) programming is required after replacementPrior to driving the vehicle make sure the surface in front of the radar sensor is clean.Verify the mounting area is not damaged and allows the module to face the intended direction. Make sure the vehicle is being driven in an area conducive to calibration.An ideal calibration environment has stationary objects on the roadside, such as mailboxes and street signs, minimal curves and hills, multiple vehicles to follow at a distance of 30-50 m (100-165 ft) while driving the vehicle greater than 56 km/h (35 MPH).Drive the vehicle within the following conditions for 10-30 minutes or until calibration is complete. The "Service Driver Assist" message will turn off when calibration is complete.Drive at speeds between 35 - 56 mph (56-90 km/h) Minimize tight curvesAvoid extreme acceleration or decelerationFollow one or multiple vehicles. (typical vehicle traffic is sufficient, but vehicles 30m - 50m (100 -165ft) away are most effective at decreasing the calibration time)Drive in an environment that has stationary objects on the side of the road (street signs, guard rails, mail-boxes, fences, etc)Verify proper calibration by observing that the "Service Driver Assist" message turns off within 10-30 minutes of normal driving.Avoid the following:Heavy trafficStop and go trafficNo trafficMountain or hilly roadsSharp curves in the roadwayTunnelsLeft and Right-Side Object Sensor ModulesSince the Left and Right-Side Object Sensor Modules continuously perform coarse and fine calibration during operation. no calibration is required as a part of service.Ensure you follow the following directions prior to and during a dynamic calibration test driveDO NOT operate vehicle in an area where there no traffic or a limited number of road-side objectsEnsure there is no dirt, mud or other build-up in the sensor areaEnsure there are no bumper stickers or labels on the rear fascia or bumper near the sensorEnsure there is no damage to the rear fascia