1 - Make sure the sensors aren't covered by dirt/debris/etc.
2 - Adjust the mirrors so you don't have blind spots and then use them.

 

 

Was not intended to be condescending but rather serious, hopefully helpful, advice. Visual confirmation of clear space is orders of magnitude more reliable than an electronic system that is subject to failure and has documented situations where it will not function - pages 438-440 or the owner's manual:

The blind spot information system alert indicator may
not come on under the following conditions:
• A vehicle does not stay in the alert zone for more
than two seconds.
• A vehicle is parked in a side lane.
• The speed difference between your vehicle and the
vehicle you are passing is greater than 6 mph (10
km/h).
• An object not detected by the radar sensors
approaches or passes your vehicle.
• A vehicle running in the adjacent lane is a
motorcycle or other small vehicle.

The system is for your convenience only. Even if an
object is within the alert zone, the following
situations may occur.
• The blind spot information system alert indicator
may not come on due to obstruction (splashes,
etc.) even without the Blind Spot Information
System Not Available multi-information display
appearing.

Blind spot information system may be adversely
affected when:
• Objects (guard rails, poles, trees, etc,.) are
detected.
• An object that does not reflect radio waves well,
such as a motorcycle, is in the alert zone.
• Driving on a curved road.
• A vehicle is moving from a far lane to the adjacent
lane.
• The system picks up external electrical interference.
• The rear bumper or the sensors have been improperly
repaired or the rear bumper has been deformed.
• The orientation of the sensors has been changed.
• In bad weather (Heavy rain, snow, and fog).

 

All the more reason to always TURN YOUR HEAD to look before you change lanes. NEVER rely on sensors or even just a mirror. At the risk of sounding like an "old fart" never trust technology completely, always verify when ever possible. I doubt if the excuse "I'm sorry but my blind spot sensor didn't alert me, officer" will hold water with either the cop, the judge or your insurance company.

 

Blind spot detection does not work if car moving less than 20 mph

 

I agree blind spot notification is not working well. My mirror are set correctly, and if your on the entry ramp to enter the freeway, you can't see the right lane of the freeway were the car which could hit you will show up. The warning comes on too late, and I don't count on it working, so I turn and look. You overlook the stupid replys you get on this as well as any forum. A lot of folks just like to get under you skin. Sorry there are people like this on the site. They should be removed! I also ordered a convex mirror from Herman Rickter that has a suction cup that is installed to the windshield. I haven't received it yet, but it should be Wednesday. I hope it helps. I did read when
a review of the RDX, that they were disappointed with the blind spot and it's notification. My car warns me when the car is adjacent to the back door, which is not soon enough. I have a number of complaints with this car, but overall I still like the power and handling.

 

 

+1 If the blind spot detection on any of my vehicles were to quit working it would probably take me a month or so to notice it. Nothing, as in absolutely nothing, works better than your eyes.

The only 'tech' I use regularly is the backup camera - and that because the rear sight lines on most modern vehicles, especially CUVs and SUVs, is miserable.

That said the front camera has been useful a couple of times to help 'look around' blind corners or pulling into a really tight spot.

 

 

 

I would notice immediately, I haven’t had to turn my head around since blind spot monitoring and 360 degree cameras were available.

 

Funny, I still use my mirrors more than the back up camera and I zip out of spots faster than these mouth breathers drooling while watching their cameras and pulling out of spots at 1 MPH (I'm not even exaggerating).

 

Agree, some of us have that long-ago-learned habit of turning our heads. Some cars however, like the RDX, add challenges to that with tougher than normal views out that rear passenger side due to the styling/design of that little window on the rear quarter panel. I always look, my wife always depends on the mirrors, which I could never do.