Keeping an Eye on Blind Spots

How to Choose a Blind Spot & Backup Warning System

Know how the device mounts on your vehicle.

Camera and sensor systems that are mounted on the vehicle’s bumper or bodywork may necessitate drilling. They may not be the best choice if you lease your vehicle.

If you have a hitch, you can consider a model that mounts in the trailer-hitch receiver. But you would have to remove the system to use your hitch.

Other camera and sensor models mount on the license-plate frame. But some states prohibit frames because they can obscure the plate.

Within types, features vary. This is especially true with the sensor models we tested. The ultrasonic systems were generally the most sensitive, but their performance was adversely affected by rain, snow, or other inclement weather.

The microwave-based sensor systems we tested were not affected by weather but are less sensitive as a group. They also don’t warn the driver unless the vehicle or object behind it is moving.

The display quality of the camera-based models is very good, although it doesn’t match that of the larger screens on some carmakers’ systems. Most of the system displays turn on when the vehicle shifts into reverse, but one, the Audiovox, must be turned off and on manually.

How To Avoid Car Gadgets & Choose the Right Park Assist Technology for Your Driving Safety

Know how the device mounts on your vehicle.

Camera and sensor systems that are mounted on the vehicle’s bumper or bodywork may necessitate drilling. They may not be the best choice if you lease your vehicle. If you have a hitch, you can consider a model that mounts in the trailer-hitch receiver. But you would have to remove the system to use your hitch. Other camera and sensor models mount on the license-plate frame. But some states prohibit frames because they can obscure the plate.

Within types, features vary. This is especially true with the sensor models we tested. The ultrasonic systems were generally the most sensitive, but their performance was adversely affected by rain, snow, or other inclement weather.

The microwave-based sensor systems we tested were not affected by weather but are less sensitive as a group. They also don’t warn the driver unless the vehicle or object behind it is moving.

The display quality of the camera-based models is very good, although it doesn’t match that of the larger screens on some carmakers’ systems. Most of the system displays turn on when the vehicle shifts into reverse, but one, the Audiovox, must be turned off and on manually.

LaneFX proven better solution to the blind spot problem than stick-on convex blind spot mirrors

Top 5 Auto Safety Technologies

Which of the often-expensive new technology might really save your life? Cars and trucks have become a lot safer in the past decade, but some 43,000 people still die every year on U.S. highways. To be sure you and your family do not wind up among these statistics, you want the latest and best auto safety equipment available when you buy a new car. But unless you can afford a luxury car--where most safety gear will be standard--you will have to make choices about how much to spend on optional auto safety equipment.

Some state-of-the-art auto safety devices--such as blind spot detection systems --aim to help you survive once an accident happens. Others--even better--help to control skids and other dangerous situations, aiming to avoid accidents entirely. To stay safe, you ideally need both preventive and protective equipment. New auto safety gear may be especially important if you are thinking about buying a sport utility vehicle (SUV).

J.D. Power & Associates' Consumer Ratings of Top 5 Auto Safety Technologies:

1. Tire-pressure monitoring
2. LaneFX style blind-spot detection / side assist / collision warning
3. Lane-departure warning
4. Emergency brake assist/collision mitigation
5. Rearview backup camera
   

Compare Backup Sensors & Cameras to ParkFX

Get the Latest Information on the Most Reliable Backup Warning Technologies

Not all reversing aids are equal. The sensing technology and the indicating method are critical to your driving safety.

How a park assist system alerts you

One option is video, which at first seems like a great choice. But one major flaw with having a video camera affixed to the back of your car with a monitor on your dashboard is that it also forces you to look forward while backing up. That can disturb your perception, your reaction time, and feel very unnatural. They are also extremely expensive, and you'll pay thousands of dollars to have a video system attached to your car, whether from the dealer or an aftermarket supplier.

Compare that to other bargain basement devices which actually have LED displays (little red lights) on your dashboard. These are cumbersome -- almost useless -- for much the same reason as video: when you drive in reverse, you naturally look behind you, and you'll never see the little red lights. They are also hard to read in bright sunlight.

Some other bargain technologies use a tone which beeps more rapidly as you get closer to an obstacle. You can at least hear the relative distance just by listening to the beeps, but you have to practice a bit to really understand how far you are from danger.

That's why an audible voice sensor is best. It tells you in a spoken voice exactly how far away you are. Not only do you not have to awkwardly look forward at your dashboard, you'll know without guessing how much further you can safely back up.

How a reversing aid detects objects

If you've never seen or used a reversing aid, you might be surprised at how technically advanced they actually can be.

Reversing aids use a variety of technologies to sense an object behind the car. Some units use Doppler radar, and others use infrared sensors, but by far the most accurate method of detection is the one the U.S. Navy uses on its submarines: sonar.

Sonar can operate in any weather, including direct sunlight or rain. And it doesn't require that the car be moving in order to sense an obstruction.