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I have some “lingering questions” as I’m getting up to
speed on my new RX350h.
1. How do you activate the Traffic Jam Assist?
2. From videos, it appeared that all highly optioned RX’s came with the power rear seat recline. Yet I don’t seem to have it on my $65,755 RX. Am i
missing something? EDIT: I now know I don’t have this.
3. It appears that the problem getting the Digital Key to work has existed for a very long time on the NX before becoming an issue here. Any update on what and when the resolution will be?
4. Is there any way to get tire pressure to be an option that can be seen on the driver’s mini screen or HUD?
5. I’m finding no brake dust from the hybrid brake pads. Wonderful. So why aren’t ALL brake pads made from the same stuff? (Sorta like why isn’t the whole plane made from the indestructible black box material 🤣?)
6. What exactly happens with setting current and indicated tire pressures, as per this photo? Does something beep when low? Does the vehicle add pressure automatically (doubtful)? It shows the current pressure…so why does it need to be “set”?
Last edited by daryll40; Jan 22, 2023 at 07:48 AM.
1. It is an option. Think $600 or so. If you have the option, it is activated through the main screen. Beyond that not sure.
2. Also like a $200 option.
Check your window sticker to see if either of these are listed.
1. I DO have this (Traffic Jam Assist). See the photo. Specifically what buttons do I push to activate this? I’ve been searching all weekend, watching YouTube and even scouring the dreaded thick owner’s manual.
2. I guess I do not have this. Hard to believe on a $66k car, but no one goes back there anyway. 🤷🏻♂️
It's on when the ACC is on - does your car pace itself to the car in front? Stopping and starting as the traffic ebs and flows (you have to juice the system to resume from a dead stop), like this video below. If it does, then its working.
It's on when the ACC is on - does your car pace itself to the car in front? Stopping and starting as the traffic ebs and flows (you have to juice the system to resume from a dead stop), like this video below. If it does, then its working.
I actually watched that video before. It doesn’t look like the Lexus setup. And it seems like something in my car has to be activated to do that. What do you mean by “ACC on”? Doesn’t having the power on mean ACCessories are also available to be on, automatically?
Also the driver of that car has his hands off the wheel for an extended period of time. If I do that, it flashes all sorts of warnings.
Yes, it forces you to touch the wheel periodically because its not an autonomous driving system, just an assistant. I've only used the BMW system, I always kept my hands on the wheel on that one so I never dealt with the alert, just used the traffic assistant to handle the throttle and braking as traffic ebs and flows (including dead stops). On the BMW at least, the lane keep assistant (I think Toyota calls it Lane Tracing) didn't work so well, it oscillated from one white line to the other, so I turned it off and steered myself. There was nothing to activate on that system, it was engaged when the cruise control was activated.
Yes, it forces you to touch the wheel periodically because its not an autonomous driving system, just an assistant. I've only used the BMW system, I always kept my hands on the wheel on that one so I never dealt with the alert, just used the traffic assistant to handle the throttle and braking as traffic ebs and flows (including dead stops). On the BMW at least, the lane keep assistant (I think Toyota calls it Lane Tracing) didn't work so well, it oscillated from one white line to the other, so I turned it off and steered myself. There was nothing to activate on that system, it was engaged when the cruise control was activated.[/QUOTE
Ah! I was thinking ACC as in the “Accessory” function of traditional cars.
In the Toyota Highlander video, the driver almost never touches the steering wheel. The Lexus will flash and beep if I try that.
Isn't it like a 30 or 60 second timer? Maybe its configurable.
Actually, looking at the manual now, it seems to have a mind of its own based on other actions it detects - to push this alert to grab the wheel. Its not just a timer.
Page 552 of the manual - you can turn this entire function on or off, I would think the default would be ON - but you never know. It also has camera recording of the driver during the operating period, that also can be turned on or off.
Last edited by lexusnyca; Jan 22, 2023 at 11:22 AM.
My observation is Traffic Jam Assist comes on automatically when you are in Adaptive Cruise Control mode with speed limit set under 30. Normally, with ACC you have to resume on touch keypad or push gas paddle to start from the stop position. However, with TJA, car will start automatically after stop (aka stop & go function).
My observation is Traffic Jam Assist comes on automatically when you are in Adaptive Cruise Control mode with speed limit set under 30. Normally, with ACC you have to resume on touch keypad or push gas paddle to start from the stop position. However, with TJA, car will start automatically after stop (aka stop & go function).
Finally, the answer! (I think) Thank you. I’ll try this sometime this week when I’m in appropriate traffic. I guess, however, I wonder why, if it’s a separate $600+ option from ACC, there’s not a definitive on and off switch for this. Separate from the ACC.
I think $600 for TJA is pretty much to do stop and go without resuming or needing to push paddle once car stops. I do not see any dedicated button on console or in infotainment.
It will be great if anyone else can confirm my observation. My dealership's "Lexus feature guy" did not walk me through all the features. So, I am figuring out features on daily basis through owner manual and trial/error.
My observation is Traffic Jam Assist comes on automatically when you are in Adaptive Cruise Control mode with speed limit set under 30. Normally, with ACC you have to resume on touch keypad or push gas paddle to start from the stop position. However, with TJA, car will start automatically after stop (aka stop & go function).
I believe the TJA requires both Adaptive Cruise AND Lane Keeping Assist to be activated. Then it should engage automatically. The HUD display is different when TJA is active also. I havan't had the opportunity to try this out yet, but I will first chance I get.
My observation is Traffic Jam Assist comes on automatically when you are in Adaptive Cruise Control mode with speed limit set under 30. Normally, with ACC you have to resume on touch keypad or push gas paddle to start from the stop position. However, with TJA, car will start automatically after stop (aka stop & go function).
It sounds to me that Lexus is taking a feature that is included with adaptive cruise and charging extra and making it a subscription. Both my cars have adaptive cruise. An Acura and a Mercedes. They both work in stop and go traffic using radar and cameras. Why does Lexus need a cell connection? There has to be more involved.
Probably true, it shouldn't need a subscription to work - but they hook people on it and then charge them monthly for it. A lot of automakers are doing similar things. So there are two subscriptions for this car? Drive Connect for the nav, and Remote Connect for the app/digital key/remote start and the Traffic Jam assistant? I can't keep track, and of course its not clearly explained on the Lexus website - for obvious reasons.
You don't need lane keeping to be on to use the BMW system, I know that for a fact. If you need it on for the Lexus system, hopefully their Lane Tracking system works better than BMW's.
Last edited by lexusnyca; Jan 23, 2023 at 08:58 AM.
Lingering Questions
