Overall I'm loving my 5.0AB but I just cant get on with the Adaptive Cruise despite trying to adjust to it over the last 5000miles. What I want to do is go back to the old fashioned basic Cruise Control. Is that possible? Can I switch off the radar and leave cruise working? I've got an IID tool but cant see it as an option. I'd be happy to pay a dealer to do it if that's the only way its possible. Anyone know??

The issue is that IMO adaptive cruise is the very worst of "driver aids". I set a target speed, but with busy motorways you are always approaching someone else. With the old CC you'd cruise up behind, pick your slot in the overtaking lane and move smoothly by. If there was no slot available then a touch of break would regain control of the car until safe to resume. With adaptive, the car slows down so often that you don't necessarily realise that although you set the thing to 70 (or whatever) you are actually doing 65 because that's what the bloke in front wants to do. If you hog the overtaking lane then the system works as you can only go as fast as the slowest in that lane....but if you drive properly only using the overtaking lanes to overtake then the adaption is actually dangerous. Approaching the back of traffic in the left lane, the car will dramatically slow at some variable random point, often just as I decide to move into the overtaking lane. It then takes a few seconds to pick up again by which time I've messed up some faster drivers day. The range of the radar varies from so far away its a joke to just far enough away for anyone else to push in front. On the other hand the shortest setting is hopeless if there is a big speed differential as you rapidly approach the back of someone and the car applies the brakes very hard very late on. Its completely unnerving and hopeless! Instead of the car basically driving itself as I was used to, I now have to work harder with Cruise on than when its off. Mike - MPx

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try this, while cruise is on, hold the reduce distance button to the lowest level and keep pressed, it will turn off the adaptive part of the cruise control. ... - .- -.




Y. O. L. O.
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Thanks Stan!
Adaptive CC can be totally disabled by removing the fuse for the radar unit then changing several CCF parameters using your IIDtool, having only recently retro-fitted ACC to my MY12 TDV8. However Stan's suggestion would be preferable although ACC might be restored on next start-up. I'm going to try Stan's suggestion as sometimes I would prefer mine's original, standard CC.

Good info Stan.

Does it work the other way? Can I switch it on by pressing the up button for a longer time. I use the adaptive on speed controlled sections of motorways. Very useful. Set to 55 and relax. The traffic goes in waves so don't have to make any adjustments

I agree with MPx that on normal motorways regular cruise control would be better. 2012 5.0L S/C
Previous:
3.6 TDV8
4.4 HSE
P38 4.6 HSE
Classic 3.9
90 County
Series3 Lightweight

i hope this method does work..



apparently if you press increase it re-activates it.. ... - .- -.




Y. O. L. O.
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Thanks Stan. On a cruise ship right now so don't think I can try it on the bridge. Will try when I get back at the end of the week. 2012 5.0L S/C
Previous:
3.6 TDV8
4.4 HSE
P38 4.6 HSE
Classic 3.9
90 County
Series3 Lightweight

Great info thanks Stan. Will be trying it tomorrow and will report back. If not ... I'll be back in touch Graeme! Mike - MPx

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Absolutely love my ACC - one of the reasons I got the AB. When I need to overtake on motorway I just accelerate as normal, set new ACC speed. If I do find myself slowing down by someone going slower, I just enjoy following on and then overtake later when I can. Really love the ACC, wouldn't want to be without it.  2005 L322 Vogue Gold gone
2006 L322 Vogue Black gone
2011 L322 Vogue Silver gone
2011 L322 Autobiography Black gone
2015 L405 Autobiography LWB Black gone
2019 L405 P400e Range Rover Autobiography LWB Eiger grey / black roof gone
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2019 L405 P525 Autobiography LWB British Racing Green

I'm totally with RosytanH on this one. I could not imagine owning an RR without adaptive cruise. Best feature on the car but you do need to add a bit of pedal sometimes to make up the slack in the system.

stan wrote:

i hope this method does work..

Sadly doesn't work with my one either. If I keep the "- distance" tab pulled once its on just one < then after about 5 seconds the picture of the car goes off on the dash....but it hasn't switched off the radar. Its just as adaptive as ever.

Grateful for any other ideas....???? Mike - MPx

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that's a bummer, i'm sure i read that procedure worked...  ... - .- -.




Y. O. L. O.
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I asked a dealer in the context of a 2016 405 whether one could select 'ordinary' CC and was told yes, by double clicking the selector switch. I don't know if that is right or if yes, if it works in the 322 also, but it might be worth a try. Only Range Rovers since 1988

MPx wrote:

Great info thanks Stan. Will be trying it tomorrow and will report back. If not ... I'll be back in touch Graeme!

Ooooerr Graeme that sounds properly scary to get right! But many thanks for the info. Some Qs:

Defuse the radar(s) first or after the ECU changes?
Intuitively the settings you list look like they are switching adaptive on rather than off. So would I be selecting things like
Speed Control - Adaptive NOT fitted...etc?

Meanwhile will try the CS approach... Mike - MPx

2017 5.0 V8 Supercharged SVAutobigraphy Dynamic SVO Palette Grey (2021-...)
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2002 4.4 V8 Vogue Bonnatti Grey (2008-2012)