ACC

[ColinB]

So far [I-LIM's] been spot on.

I've previously posted pictures of situations where the sign recognition in my Mk3 ALWAYS gets it wrong, every time I pass them. Here they are again. I appreciate none of these are the motorway situation you describe where signage tends to be clearer, but personally I wouldn't trust it for safety-critical (or speed camera critical) situations.

[Kremmen]

Based on the advice like yours I didn't venture into I-LIM, just got back from Reading.

I took note at the 60 to 50 boards and they were picked up correctly, however, it was easy enough to press RES - x 10 times and Bob's your uncle.

[Neil Ives]

It was easy enough to press RES - x 10 times and Bob's your uncle.

If you hold the button down it changes in increments of 10.

[Kremmen]

Yes, I did that to get from the start 18mph to 50mph but pressing the button one increment at a time makes the deceleration nice and smooth, got to watch those eggs in the boot.

[Mouse]

I had ACC on a BMW X5 and its the only feature I didn't switch off, it was excellent going along German autobahns on long journeys (Lived in Frankfurt and drove all over Europe).
I did switch off lane departure as it just vibrated the steering wheel but I may give it another try on the Jazz on long journeys but I dont like the idea of auto steering input !

[RuthieB]

There is an old fashioned saying that states if you can’t say”only a fool breaks the 2 second rule”  for you to reach a point ahead that the car in front has already passed then you are too close to that car in front. I believe that the max separation distance on ACC is equivalent to a 2.3 second following time irrespective of and it takes 1 second thinking reflex time before you actually hit the brakes in an emergency without that on.
A car will cover a phenomenal distance in that time even under maximum retardation! The best thing of ACC is that the car reacts in a fraction of a second so there is a better safety margin……better safe than sorry!

[Jayt43]

After many hundreds of kilometres/miles of highway I think I have quite mastered driving the car on ACC.
To start with, I almost always set the distance detection to minimum, at high speeds (around 80 mph) sometimes at 2 bars. When overtaking (after indicating of course ): change lanes at a sufficient distance (you learn quickly ...) from the car in front of you.
When you are overtaken and that car moves a short distance in front of you into your lane, nothing happens if its speed is higher than yours.
I haven't experienced any unexpected brake intervention yet, but who knows! I wait patiently.
And indeed, Hugh mentions it: read the manual! Where to use and where better not to use ACC...

My experience exactly. The only thing I'd change so far (with my experiences being 100% positive) is that, when a car moves into my lane - and ACC reduces speed from the set speed - when the road clears and it resumes, it does so under full throttle.

As it's pretty noisy in this scenario, Honda should recalibrate the "resuming to set speed" throttle ratio to 75% of what it is now. Then I'd say it would be perfect for my needs :-)

[Lord Voltermore]

My experience exactly. The only thing I'd change so far (with my experiences being 100% positive) is that, when a car moves into my lane - and ACC reduces speed from the set speed - when the road clears and it resumes, it does so under full throttle.

As it's pretty noisy in this scenario, Honda should recalibrate the "resuming to set speed" throttle ratio to 75% of what it is now. Then I'd say it would be perfect for my needs :-)

It also does it if you change lane to overtake a slower vehicle.  I try to anticipate when its likely to go off at full throttle and use the throttle manually  ,on my terms, reverting back to ACC once its up to speed.

No great effort, and I find it helps keep me more alert to how the ACC is likely to interact  with other traffic.

[Kremmen]

That was my issue, it interacted far too often with other traffic and at times it hindered progress when trying to overtake. You can't overtake if it's auto decelerating !

I knew by the feeling that it had put the brakes on, unnecessarily in my opinion, so I stopped using it.

[peteo48]

I haven't used ACC yet - not really had occasion to. I like cruise control as an option and the main reason I use it is to give my right leg a rest on longer trips and when traffic is light. Kremmen's experience with ACC would deter me from using it I think in any situation where the motorway was busy.

[Kremmen]

It's like a lot of things, horses for courses. For some it sounds to be ideal for what they want.

I've tried it and for me it ruins my smooth predictable driving style.

[culzean]

It's like a lot of things, horses for courses. For some it sounds to be ideal for what they want.

I've tried it and for me it ruins my smooth predictable driving style.

I agree, you should not have to second guess the way the vehicle is going to behave in certain situations,  it is distracting, and sometimes dangerous.  My brother was very disconcerted by the way his car behaves, so he switches everything off before every drive.  What is lacking in all these auto systems is human judgement.

[peteo48]

It's like a lot of things, horses for courses. For some it sounds to be ideal for what they want.

I've tried it and for me it ruins my smooth predictable driving style.

I agree, you should not have to second guess the way the vehicle is going to behave in certain situations,  it is distracting, and sometimes dangerous.  My brother was very disconcerted by the way his car behaves, so he switches everything off before every drive.  What is lacking in all these auto systems is human judgement.

I might have mentioned this before but I have a pal who changes his car every 3 years on PCP deals. He steadfastly ignores all the extra gizmos. His Lexus Hybrid is loaded with them. He doesn't use CC, ACC, Speed Limiters, Android Auto or Apple Car Play. He says his Lexus makes annoying noises every now and then which he ignores!

On the Jazz it's the wretched RDMS which I hate. After putting up with it for a while I now turn it off on every trip. I could put up with a beep but not the twitch of the steering wheel - hate that.

[NoelM]

It's like a lot of things, horses for courses. For some it sounds to be ideal for what they want.

I've tried it and for me it ruins my smooth predictable driving style.

I agree, you should not have to second guess the way the vehicle is going to behave in certain situations,  it is distracting, and sometimes dangerous.  My brother was very disconcerted by the way his car behaves, so he switches everything off before every drive.  What is lacking in all these auto systems is human judgement.

I might have mentioned this before but I have a pal who changes his car every 3 years on PCP deals. He steadfastly ignores all the extra gizmos. His Lexus Hybrid is loaded with them. He doesn't use CC, ACC, Speed Limiters, Android Auto or Apple Car Play. He says his Lexus makes annoying noises every now and then which he ignores!

On the Jazz it's the wretched RDMS which I hate. After putting up with it for a while I now turn it off on every trip. I could put up with a beep but not the twitch of the steering wheel - hate that.

Turn them all off. They are only there for people that can’t drive. 

[culzean]

Turn them all off. They are only there for people that can’t drive. 

Yup, and the problem is that the more automation that gets fitted the more peoples driving skills get eroded.  The law of unintended consequences is that the less people have to do, the less they want to do.