Insignia Grand Sport Adaptive Cruise Control odd behaviour

[tabergan]

Hi all just picked up my new Insignia Grand Sport SRI VX line in the last few months.
Car is lovely and enjoying the ownership experience. I am still getting to grips with all the options on board including the adaptive cruise control.

If anyone has any experience of this feature with there Insignia please chime in.

Not sure if mine is faulty or if they are all like this? It seems to activate no problems but the distance gap it leaves is downright bizarre.
For example around town under 30 mph it works great leaving a sensible gap of around 2.5 -3 seconds gap on setting 3 which is the longest gap.

Then after this the faster I go the closer the gap goes for example at 60-70mph the gap is around 1.4 seconds to the car in front and that's on distance 3 the furthest setting.
I am guessing setting 1 the closest must be downright dangerous at that speed anyway.

At 80 mph when I tested it the gap was around 1.7 seconds to the car in front this was again on distance no 3 the furthest.

If anyone has this on there car please advise if this is normal?

The seconds gap I am reading from the car display screen and backed up by my own perception of how close I am to the car in front.

[0011728]

Adaptive cruise is not meant for city / town driving. it is more for long distance cruising. As for the distance settings I will have to check on mine, though I have the Insignia A. But at motorway speeds I have no problems with near, middle or far distance indicators

[tabergan]

Adaptive cruise is not meant for city / town driving. it is more for long distance cruising. As for the distance settings I will have to check on mine, though I have the Insignia A. But at motorway speeds I have no problems with near, middle or far distance indicators

Yes it will be interesting to see how it compares to mine maybe they are all like that.
At the moment I have stopped using it as it drives to close for comfort for me on the motorway.

[0011728]

Won't be using it on the motorway again till Friday

[ilunn]

Yes it will be interesting to see how it compares to mine maybe they are all like that.
At the moment I have stopped using it as it drives to close for comfort for me on the motorway.

Think If it was me I would see if Vauxhall can permanently switch it off or pull fuse out.

[marko301]

Hi all just picked up my new Insignia Grand Sport SRI VX line in the last few months.
Car is lovely and enjoying the ownership experience. I am still getting to grips with all the options on board including the adaptive cruise control.

If anyone has any experience of this feature with there Insignia please chime in.

Not sure if mine is faulty or if they are all like this? It seems to activate no problems but the distance gap it leaves is downright bizarre.
For example around town under 30 mph it works great leaving a sensible gap of around 2.5 -3 seconds gap on setting 3 which is the longest gap.

Then after this the faster I go the closer the gap goes for example at 60-70mph the gap is around 1.4 seconds to the car in front and that's on distance 3 the furthest setting.
I am guessing setting 1 the closest must be downright dangerous at that speed anyway.

At 80 mph when I tested it the gap was around 1.7 seconds to the car in front this was again on distance no 3 the furthest.

If anyone has this on there car please advise if this is normal?

The seconds gap I am reading from the car display screen and backed up by my own perception of how close I am to the car in front.

Are you sure you have adaptive cruise control? It sounds like you may have normal cruise control. Could you be confusing the collision alert distance setting? That will brake if it thinks you are going to hit the car in front.

If you do have adaptive cruise control you should have a little car above the cruise control icon to tell you it's adaptive cruise control shown by the arrow in this pic






If you have normal cruise control it will just be the cruise control icon like mine in this pic

[tabergan]

Hi its definitely the adaptive cruise as indicated in your pictures. The car stops and starts automatically in traffic it works really well at that speed.

I have emailed Vauxhall to see what they say, maybe its setup that way so it drives more aggressively on the motorway.

[marko301]

Ah ok. Thought I'd clear that up just in case.

[Chewy1971]

maybe they have used an Audi adaptive cruise system if it's aggressive?! =o/

[0011728]

Will be trying mine later on the motorway and I'll report back, though mines the A.

[tabergan]

I will update you all when I hear from Vauxhall i suspect this week now. Maybe its set for Audi mode, full on aggressive mode by default.

[0011728]

Okay, quick update from my test. Doing 75 on motorway on distance 3 (largest gap) was approximately 1.7 seconds. I say approximately because on my system I had to turn off the adaptive cruid and switch to distance monitoring so there may be 0.1 second either way during the change. At 70 the gap was 1.9 seconds. The distance by eye is adequate. Remember that though they say 2 second gap is recommended, this is to allow for human reaction time. The automated system of the adaptive cruise has quicker reaction times and I have no issues with the gaps that the system leaves, though I always have it on distance setting 3 (largest). If the system left larger gaps then this would constantly be filled by other cars popping into the gaps. Very happy with my adaptive cruise and a great system, though it does take a little time to gain confidence with letting the system auto brake.

[tabergan]

Okay, quick update from my test. Doing 75 on motorway on distance 3 (largest gap) was approximately 1.7 seconds. I say approximately because on my system I had to turn off the adaptive cruid and switch to distance monitoring so there may be 0.1 second either way during the change. At 70 the gap was 1.9 seconds. The distance by eye is adequate. Remember that though they say 2 second gap is recommended, this is to allow for human reaction time. The automated system of the adaptive cruise has quicker reaction times and I have no issues with the gaps that the system leaves, though I always have it on distance setting 3 (largest). If the system left larger gaps then this would constantly be filled by other cars popping into the gaps. Very happy with my adaptive cruise and a great system, though it does take a little time to gain confidence with letting the system auto brake.

Thank you very much for taking the time and effort to confirm this.

So I guess the results are similar to mine gap wise.
You are correct that the system will react quicker.

For me personally the gap is still to close for comfort.
I will just use for traffic jams on the motorway where the gap is around 3 seconds.

I await with interest what Vauxhall tech team say about this.
Will update you all when they email me back.