Program mod needed for blind spot warning
The BSM is not dependable enough to go without conformation by viewing traffic in the mirrors.
Over the years I have dealt with many BSM complaints of false warnings or failure to warn. There is a page in the owner's manual with a long list of conditions in which the BSM may not operate as desired.
YMMV,
MidCow3
YMMV,
MidCow3
Last edited by zbigzbig; Dec 10, 2025 at 12:02 AM.
YMMV,
MidCow3
My mature side is telling me not to say anything else.
Last edited by Freds430; Dec 10, 2025 at 05:34 AM.
YMMV,
MidCow3
Here's another thread that started in May 2023 on same subject. Post #50 states: If you have LDA (Land Departure Assist) you can set it with an audio alert. This will sound if your turn signal is activated and the BSM (Blind Spot Monitor) detects a vehicle in the adjacent lane. It will also alert you if you stray outside your lane markings. (p 817 of the 2025 PDF manual)
This is the way to get a beep in combination with a light on mirror. It's technically an improvement over the old way. You now get a steering correction, a beep and a warning light that all combined is trying to get your attention of an impending collision if you proceed and change lanes.
I've travelled on US highways for over 40 years at triple digit speeds at times to go along with the flow of traffic
. There's nothing that is more thorough and decisive than turning the human head left and right, using two eyes and head adjustments to know almost 100% what's around you and to determine how fast the object is coming up on you. Ask a race car driver, ask a seasoned trucker, ask a cop, ask a motorcycle driver. There's more and more idiots on the road today, in fact there's more elderly drivers too, hell I'm almost in that camp myself. I'm perfectly comfortable to ignore a blinking light and a beep, I'll confirm with my own two eyes quickly and adjust accordingly. Safety systems are flawed at times and operate very simplistically.Read up on Tesla's resistance to using LiDar instead of sticking with Radar on their very expensive optional "Full Self-Driving (Supervised)" feature design.
Here's how you should setup your side mirrors. Many people adjust them so that they can see the side of their car. Well I'll bet you no one has ever had their own car hit them! You should adjust them to see the lane beside you so you can spot a vehicle sooner that is approaching your side of car. The SAE approves this method as it will eliminate almost all blind spots when used in combination with your rearview mirror. Interestingly I have been doing this since I learned how to drive and every car I've gotten into clearly does not provide sufficient adjustment in their side mirrors. Once the adjustments are made you'll notice the mirror is almost out of travel to accomplish this. Engineers who design mirrors don't get this right!
Last edited by TheCDN; Dec 10, 2025 at 10:57 AM.
My mature side is telling me not to say anything else.
YMMV,
MidCow3
My mature side is telling me not to say anything else.
YMMV,
MidCow3
Celebrating Lexus & Toyota from Around the Globe
YMMV,
MidCow3
You are a right fighter. Must be a horrible life. This is a car forum. Chill out take a deep breath and grow up.
Last edited by Freds430; Dec 10, 2025 at 01:09 PM.
As far as you two go... You can stop going at each other. (I don't care who started what)
Last edited by Freds430; Dec 10, 2025 at 03:24 PM.
Sensationalism and drama aside. Move on... Someone doesn't like what you said. They said something back. Who cares? Random people on the internet talk crap. Push buttons and "Troll" away. You can ignore them or set the forums to ignore them for you. Words on a page, from randoms in the wild.
Now, Carry on.
That takes me to the LDA confusion, at least as it's observed in my 2026 NX. If set, LDA may beep when changing the lane but doesn't work in a predictive mode, namely, that when I turn light signal on w/o changing my lane yet, I don't get a beep warning about an adjacent car that just entered into my blind spot zone. In other words, LDA warns about lane change irrespective of the blind spot situation. But that's what my old Mazda and many domestic makes can do for quite a few years.
As configured, Lexus NX LDA may contribute to driving hazard. While entering highways via ramp with gradually merging 2 lanes, I encountered an unexpected jolt on my steering wheel and sudden deceleration, exactly when I should be accelerating to highway speeds, e.g. 65 or 70 mph. It looks Lexus designed this "safety" system for sleepy country roads, not contemporary highways and metropolitan areas. Fixing these safety issues is quick, cheap, and easy by adding a few programming lines to NX computer code, and that's what a responsible corporation should do if it cares about own customers.











