As snow, ice, or salt grime gathers on cars in winter, many of the sensors that are key to the operation of advanced safety systems can become blocked

Key Areas to Keep Clean

 When you first get a new car, spend some time identifying all the sensors that may be hidden in the grille area so that you’ll know 

The grille

The windshield

Many cars use cameras and sensors behind the glass for crash avoidance systems or automatic wipers. it’s worthwhile to clear and defrost your windshield entirely

Rear body quarter panels:

 These often house radar sensors that are used to inform blind-spot monitoring systems, or support systems like rear 

Sensors in the car’s front and, often, rear bumpers:

These are used for the parking alert systems. The front ones let you know when you’re getting too close to an object 

The rearview camera and cameras on the side mirrors:

Ice, snow, salt, and dirt can muck these up and make surround view, bird’s eye view, and other parking features useless.

For do-it-yourself cleaning, use a mild automotive-specific detergent so you won’t damage your car’s paint.

Make sure you have a clean paper towel or rag to dry the area after cleaning. You don’t want to be part of the problem by coating the car in ice.

After each storm, be sure to thoroughly clear the car of snow before driving. It’s the law in some areas. 

You may have to clear the sensors several times on a trip, especially if you’re driving through a storm, so keep a snow brush onboard.