You really clarified thing nicely there. Let me ask a related question. When using both LTA and Dynamic Cruise, and after coming to a complete stop or manually breaking, what is the easiest way to Resume BOTH of those features. I'm finding it cumbersome turning both features back on separetly.

 

Practice makes perfect! Took me some time experiencing stop and go traffic to understand what's going on too.

Approaching traffic while you have Dynamic Cruise Control and LTA ON (buttons are on right side of wheel one below each other) - You can simply let the car spot / sense the vehicle you're approaching and it will slow down and keep a measured distance from the car in front. Note you can adjust this distance as well - I think there's 4 settings - symbol looks like hash marks on the road, you can toggle thru this on right side of wheel as well at the '9 o-clock' position. If it comes to a complete stop for more than 3 seconds you'll get a warning on dash to use gas peddle to restart - all you have to do is give a slight brief tap on gas pedal and system will begin following vehicle in front again.

Same situation but you touch the brakes, and you don't want to lose your current speed setting, as long as you're travelling at above 19 mph, you simply hit the resume button. If you turn - toggle off the cruise you'll need to set the speed again.

It's a little scary at first to let the car decide how fast to stop while approaching a vehicle, I always hover the brake peddle and keep hands at the ready on the wheel, but if the traffic is that stupid slow stop and go ... stop and go ... it works not bad, as long as the weather conditions are favourable with no heavy rain or snow and your radar sensor in front isn't covered with bug guts, you should do alright.

 

I didn't realize that tapping the gas pedal will Resume BOTH DCC and LTA. That's great! I'll have to play with that. I've been using the Right side steering controls and doing a multi-step process after I Stop... I've been going to DCC and then the up arrow to Resume, then going to LTA and hitting the up arrow to resume there, so its been alot of steps to resume.

 

So based on what you've said here, is it not advisable then that I install a steering wheel cover over my steering wheel, as this will/might affect how the steering wheel responds and manages these functions?

 

Personally, I don't think it's a capacitive touch system for that. I believe it senses resistance on the steering wheel to know if you're actually touching/holding it.

If I just place my fingers on the wheel it will give me the red steering wheel icon, but if I keep a little resistance on the wheel it's fine.

 

I googled it, there is a torque sensor in your electronic steering system that will sense resistance in the wheel, meaning it can sense your hand resisting the movement back and forth coming through the steering column.

 

I played around with this today and, after a stop I was not able to get DCC and/or LTA to resume with the gas pedal method. After I stop I have to do the multiple steps outlined above.

 

Just to be clear, you're using dynamic cruise control and not the alternate setting that is just old fashion cruise control? With dynamic your car will slow down if the vehicle in front of you is going slower than your set speed. If this is what is happening then it's already set for dynamic. If during an active DCC setting the car in front comes to a complete stop your vehicle will stop behind it as well, but do not touch the brake peddle as this deactivates your cruise control settings. If you touch brake you will need to get up to a speed of 19 mph I believe and then hit resume to turn it on and keep your desired speed setting. If you do not touch the brake peddle and sit and wait for car in front to begin moving as long as it's less than 3 seconds of standing still, your car will begin moving and follow behind the car in front of you. Anything longer than 3 seconds and it will warn you it has paused your DCC and you'll need to gently tap the gas peddle to start the system up again with your original speed setting.

If your car isn't functioning as I've explained above, possibly you have an issue that your dealer should look into.

Here's a little video that's pretty accurate on how our DRCC system works:

 

Thank you for explaining all that. In my case the culprit was me hitting the brake pedal, which now I know completely clears out DCC and LTA. So I know it’s normal now that I have to then start from scratch after getting above 19 mph. Not to get to far off topic but now Im researching the Lexus Traffic Jam Assist feature, which I don’t think is on any 350 NXs, and THAT is what I’d love to have.

 

I don't think it completely clears it out. I still see the locked speed in the HUD and if I remember, I can use the resume button to return to where I was.

 

Yes that's what I get as well. If you've simply deactivated it by touching the brake pedal once you get up over 19 mph you can hit resume and your speed setting from before will be used, if you have a HUD the set speed figure stays on the display too. I never glance at the centre display so I'm not sure if the set speed value is displayed somewhere on there too.

 

Thanks, do you know if Lane Trace Assist has to be separately resumed?

 

Once LTA is turned on, it stays on until manually turned off, even after stop and start of car.

 

Just did a nice long 3.5 hr highway trip and encountered stop and go traffic. Well, I didn't have to wait until I was going above 19 mph I could just simply hit resume and everything was re-activated.

 

Sounds like I need to get off the smaller roads and onto a decent highway to test this out better.