Any 74 plate car (maybe Lexus) owners? Speed limit warning

It's a 'safety feature' added to most new cars now. From what i am reading you can't disable it even using special tools.

However, on my Skoda, each time you start, i press the steering wheel icon > auto opens the safety feature menu > press the silver scroll wheel which disables the limiter > scroll down one click > press the silver scroll wheel again which disables the lane assist > press the steering wheel icon again and i'm back to the normal dash display.

This has to be done each time i start the car, but takes less than 5 secs.
 
It makes a sound if the car thinks you’re going over the limit.


That’s the problem. Cars are, in my experience, stupid.




Recently had a 24 plate BMW as a loan car, which would bong repeatedly if you exceed the speed limit by 1mph. Fine when it’s accurate. Problem is that it wasn’t always accurate.



The car couldn’t always distinguish between a single carriageway NSL and dual carriageway NSL. So as you go from SC NSL to DC NSL it would start bonging at you


Or if, on a 40+ road you go past a 30 road, it would typically pick up that speed limit sign, and start bonging at you.



Easy to turn it off on the BMW though
 
noticed with my aunts BMW that even if it's not you can +/- the speedo to align it anyway, guess there had to be some upside to everything being done on digital displays now.
 
Had it recently on a new Range Rover I had for a loan car. It came on every time you turned the engine on but could be turned off. it was quite good at getting the max speeds correct as I think it was using traffic sign recognition.
 
MrRockliffe said:
It makes a sound if the car thinks you’re going over the limit.


That’s the problem. Cars are, in my experience, stupid.




Recently had a 24 plate BMW as a loan car, which would bong repeatedly if you exceed the speed limit by 1mph. Fine when it’s accurate. Problem is that it wasn’t always accurate.



The car couldn’t always distinguish between a single carriageway NSL and dual carriageway NSL. So as you go from SC NSL to DC NSL it would start bonging at you


Or if, on a 40+ road you go past a 30 road, it would typically pick up that speed limit sign, and start bonging at you.



Easy to turn it off on the BMW though
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It was predictable that this would happen, but they went ahead with it anyway.

It's possible to troll all new cars by sticking a 20 sign on your rear.
 
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Dual-carriageway on my way to work they've reduced it from 70 to 60 - my car's speed recognition constantly keeps changing from 70 to 60 and back again while driving it LOL.
 
Nanny state gone made..

I actually don’t mind the feature, what is nanny state is not being able to permanently turn it off.. not even a compromise of reminding you every time you start the car that the feature is disabled with a single button press to acknowledge.

We have a few cars in work with it(BMW), we also have many confusing speed limit signs and it almost exclusively bongs continuously going to work since it keeps thinking I am in a 20 when it’s actually a 30.. the funny thing is the BMW picks up the side road signs (20) yet ignores the main road speed signs (30) it’s just bizarre.

It’s like lane keep systems.. nightmare on country roads, fine in built up areas generally, enforcing people in rural areas to have to jump through hoops every time they jump in their car with no way of disabling permanently or disabling based on area (again, even if you had a reminder that is acknowledged with a single button press to acknowledge) is just nanny state idiocy.

I would much rather have a speed limit aware adaptive cruise like our ID.3 had as standard, that follows the speed limit and if it erroneously picked up a side road (20 around us) speed limit sign you could just quickly increase the set speed which would still adjust at the next sign, I used that far more often commuting as it did start/stop with traffic, so perfect for a more relaxed experience when in heavy traffic.
 
Thanks all. It seems Lexus has not thought of having a quick button to turn the feature off, so it is a case of scrolling through all the screens... infuriating. Might actually go for a used one based on this...
 
Demon said:
It’s like lane keep systems.. nightmare on country roads, fine in built up areas generally, enforcing people in rural areas to have to jump through hoops every time they jump in their car with no way of disabling permanently or disabling based on area (again, even if you had a reminder that is acknowledged with a single button press to acknowledge) is just nanny state idiocy.
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This would annoy me immensely - fortunately on anything I drive currently you can disable it in the menu once and it remembers the setting, it is the only car "safety" feature which has actively tried to get me killed :s (I drive country roads a lot).

Sadly stop-start I have to remember to disable every time I start the engine which is a pain as it does nothing useful on 90% of my journeys and the odd time isn't ideal when it randomly decides to kick in just as you are going through the motions of trying to nip out quickly at a junction, etc.

All of these features should be 100% possible to disable in the menu even if it gives you a warning at start up, like with Windows Update they lack full real world context awareness and should not be authoritative or a pain to manage.
 
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Demon said:
Nanny state gone made..

I actually don’t mind the feature, what is nanny state is not being able to permanently turn it off.. not even a compromise of reminding you every time you start the car that the feature is disabled with a single button press to acknowledge.

We have a few cars in work with it(BMW), we also have many confusing speed limit signs and it almost exclusively bongs continuously going to work since it keeps thinking I am in a 20 when it’s actually a 30.. the funny thing is the BMW picks up the side road signs (20) yet ignores the main road speed signs (30) it’s just bizarre.

It’s like lane keep systems.. nightmare on country roads, fine in built up areas generally, enforcing people in rural areas to have to jump through hoops every time they jump in their car with no way of disabling permanently or disabling based on area (again, even if you had a reminder that is acknowledged with a single button press to acknowledge) is just nanny state idiocy.

I would much rather have a speed limit aware adaptive cruise like our ID.3 had as standard, that follows the speed limit and if it erroneously picked up a side road (20 around us) speed limit sign you could just quickly increase the set speed which would still adjust at the next sign, I used that far more often commuting as it did start/stop with traffic, so perfect for a more relaxed experience when in heavy traffic.
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Unfortunately, people are idiots and therefore do need a nanny.
 
My new mg5 has a speed recognition feature that puts the speed limit on the dash and it flashes if you go over.

Problem is it doesn't work very well. If on the motorway and the smart signs are saying 50 then it will detect it, but it doesn't detect when the speed limit is cancelled so it's showing 50 when we're back up to 70 on the gantries.
 
There probably is a way to disable it with a map. Maybe not on a Lexus though as their ECUs seem to be very locked down.

Other than as I said earlier, just stick tape over it's sign reading camera then it's effectively disabled. It may use GPS as well for speed limits, but that will be more accurate and won't pick up random side road speed limits.
 
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Nasher said:
There probably is a way to disable it with a map. Maybe not on a Lexus though as their ECUs seem to be very locked down.

Other than as I said earlier, just stick tape over it's sign reading camera then it's effectively disabled. It may use GPS as well for speed limits, but that will be more accurate and won't pick up random side road speed limits.
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The front facing camera isn't just used to pick up speed limits...
 
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