[qinlz]

If I press the little button to have active shield, from CNET review, it indicate DCA will replace FCW.
But I still want FCW and FCI, is that possible?

I don't like some unexpected brake. Or maybe DCA only enabled when I set a cruise speed?

Thanks.

 

[evanston45]

Fcw is just a warning...it beeps. Dca slows you down if other car slows. Nothing to do with cruise. If car in front suddenly slows the dca will kick in, but it will also beep like fcw. You can turn off dca if you want through the options, that way when you press the shield it will turn on ldp, bsi but not dca

Hope I understood your question...

 

[Jim]

DCA adds an extra layer of safety over FCW to help prevent rear-ending someone if they slow or stop suddenly. Most of the time it works as advertised, but I'm finding it sometimes brakes at wierd times, like when the road is curving to the right and the car is pointing toward a left-turn lane with a car stopped. It thinks the car is in the lane in front of you and brakes suddenly. Also, when driving in the far-right lane and a car in front of you slows to make a right turn, the DCA wants to continue braking even after the car ahead has just about cleared out of your path. At the time I remove my foot from the brake to resume my speed, the DCA brakes hard for another second or two. Not really liking that too much.

 

[nosnoop]

DCA adds an extra layer of safety over FCW to help prevent rear-ending someone if they slow or stop suddenly. Most of the time it works as advertised, but I'm finding it sometimes brakes at wierd times, like when the road is curving to the right and the car is pointing toward a left-turn lane with a car stopped. It thinks the car is in the lane in front of you and brakes suddenly. Also, when driving in the far-right lane and a car in front of you slows to make a right turn, the DCA wants to continue braking even after the car ahead has just about cleared out of your path. At the time I remove my foot from the brake to resume my speed, the DCA brakes hard for another second or two. Not really liking that too much.

That's does not sound good at all.
It may cause accident rather than preventing it! Hope they would improve the algorithm.

 

[cfrp]

^ I guess it's only really useful on straight freeways. It's new technology but I expect it to get better.

 

[dai.jx]

its desgined for long distance driving and just traveling in general... but i still trust my right foot more.. lol

 

[kzzu]

I also find that on freeways the DCA will brake quite repeatedly but as designed to do. I assume the brake lights are also going off repeatedly too right??? The car behind must think you have no clue how to drive. Anyway DCA works as it should but I haven't had it on for that reason. I wonder what the brake lights look like when it kicks in multiple times when you are at that distance where you're constantly in and out of the range of the car in front.

 

[raoden]

This is probably a dumb question but just wanted to confirm.

ICC says that it can bring your car to a complete stop if necessary. Correct me if I am wrong, if you are using ICC on a highway you really don't need the DCA. On the highway I am normally curising. Outside highways in stop and go traffic I have found that the DCA is annoying at times as described by others above in this thread. So I have permanently disabled DCA. Is this what others do?

NOTE: Also the owners manaual warns not have the DCA on all the time and recommends turning it off when not necessary.

 

[cfrp]

I would assume leaving it off would be safe.

 

[wheeling]

I have found that the FCW is useless, it give a beep that is too low to hear and too late (at very close distance). THe DCA is quite useful, on the ohter hand, it really slow down the JX, even to a full stop in city traffic. The only problem is that when the car in front is turning right on teh right lane, you cna full speed ahead wiht no problem, but the JX will give you a brake. I keep the DCA on all the time. It is not ICC and will not keep your distance, but it will provent you from rear ending someone.