A guide to blind spot monitor placement

Jan. 11, 2018
Blind Spot Monitoring system implementation can vary greatly from manufacturer to manufacturer. Repair professionals must check the vehicle manufacturer’s repair procedures for details on proper repair and calibration.
Modern vehicles are increasingly equipped with many new features which make the roads a safer place for everyone. However, these new technologies increase the challenges for technicians. Many vehicles are now equipped with Blind Spot Monitoring systems. A Blind Spot Monitor is a vehicle-based sensor device that detects when other vehicles are located to the driver's side and rear. Some vehicles also include Cross Traffic Alert, which alerts the driver about cross traffic they cannot see when backing out of a parking space.
Camera vs. Radar vs. Sonar Most blind spot detectors use an electronic detection device such as radar sensors mounted on the vehicle's sides, often in the rear bumpers or external mirrors. Some vehicles come with cameras instead of sensors. These devices will transmit electromagnetic waves or take computer-processed images using a digital camera and explore them. Even when the vehicle has been involved in a minor collision, if the sheet metal that the radar unit is mounted to is damaged, the sensor may become misaligned and therefore will not operate properly, which in turn could be catastrophic for the consumer who has learned to rely on these systems. Blind Spot Monitoring system implementation can vary greatly from manufacturer to manufacturer. Repair professionals must check the vehicle manufacturer’s repair procedures for details on proper repair and calibration.Repairs or replacements Before any repairs are started, a technician should use the patented asTech™ device to verify if any Diagnostic Trouble Codes (DTC) are present. When a DTC fault occurs, the fault can be researched and diagnostic troubleshooting can direct the technician on what to do next. Manufacturers have several statements detailing the procedures regarding Blind Spot Monitoring systems. These OEM procedures can determine whether a bumper cover is repaired or replaced. Putty and plastic repairs in the area of the radar can interfere with the way the system works. Manufactures also warn against the use of bumper stickers and even provide detailed information regarding paint thickness. Since a sensor is a precision device, never reuse a sensor that has been damaged. Always replace damaged sensors and follow manufacturer recommendations for proper calibrations and repair techniques.

Correct alignment of cameras and/or sensors is critical to ensure the proper operation of blind spot monitoring systems. Calibration is required following collision repairs if there is a replaced body panel in the area of a sensor, or if a sensor itself is replaced. These calibration procedures will require the use of special tools such as the asTech™ device.

Post scans
Once reinstalled, several checks to the radar mounting areas are required, and a post scan with the asTech™ device will ensure that all of the parts are inspected and operating properly. Without a post scan, proper alignment is unlikely and the system won’t be operating accurately.

About the Author

asTech | Remote diagnostic tool provider

The patented asTech remote diagnostic device is the leading tool for automotive repair shops that want to perform more efficient work and guarantee better results for customers. With the help of our staff of certified master technicians, identifying all of the issues that need repair on any vehicle is easier than ever. 

Sponsored Recommendations

Best Body Shop and the 360-Degree-Concept

Spanesi ‘360-Degree-Concept’ Enables Kansas Body Shop to Complete High-Quality Repairs

How Fender Bender Operator of the Year, Morrow Collision Center, Achieves Their Spot-On Measurements

Learn how Fender Bender Operator of the Year, Morrison Collision Center, equipped their new collision facility with “sleek and modern” equipment and tools from Spanesi Americas...

ADAS Applications: What They Are & What They Do

Learn how ADAS utilizes sensors such as radar, sonar, lidar and cameras to perceive the world around the vehicle, and either provide critical information to the driver or take...

Banking on Bigger Profits with a Heavy-Duty Truck Paint Booth

The addition of a heavy-duty paint booth for oversized trucks & vehicles can open the door to new or expanded service opportunities.