[Brett530]

One thing I find really annoying about my cruise control is that when I'm going down hill the car actually slows down below the set speed and stays below until it flattens or goes up hill.

I really would like it to coast and go above the set speed, but I would be ok if it just held the set speed down a hill.

Is this normal? Is there any way to change the behavior?

I have 544A "Cruise Control with Braking", and not 5DF "Active Cruise control"

[IAmATeaf]

Wouldn’t be much of a cruise control if it went over? If it bugs you just disengage it and the resume?

[Billfitz]

Mine keeps it right at the set speed.

[Somebloke]

Originally Posted by Billfitz

Mine keeps it right at the set speed.

+1

[IK6SPEED]

Originally Posted by Brett530

One thing I find really annoying about my cruise control is that when I'm going down hill the car actually slows down below the set speed and stays below until it flattens or goes up hill.

I really would like it to coast and go above the set speed, but I would be ok if it just held the set speed down a hill.

Is this normal? Is there any way to change the behavior?

I have 544A "Cruise Control with Braking", and not 5DF "Active Cruise control"

One would think 544A "Cruise Control with Braking would give it away.

[Brett530]

Yes, thanks for the helpful replies. I realize it has the ability to brake, but that doesn't mean the system should go 42 down a minor decline when the speed is set to 45.

[TurboLove]

It's the same when you are turning if you set it for 65 and you turn the car is going to slow down depending how hard the turn is

[Elvisfan]

Originally Posted by Brett530

Yes, thanks for the helpful replies. I realize it has the ability to brake, but that doesn't mean the system should go 42 down a minor decline when the speed is set to 45.

If you think it’s slowing down too much,perhaps the dealer can adjust that.

[upsidedownfunnel]

Originally Posted by Brett530

Yes, thanks for the helpful replies. I realize it has the ability to brake, but that doesn't mean the system should go 42 down a minor decline when the speed is set to 45.

The car shouldn't brake to below the set speed limit. It should only brake if it has to keep the car from going over the speed limit. If you can reproduce the issue or take a video, then you might be able to have it serviced.

I personally think the CC with braking feature is really nice. I used to use it a lot going up and down hills and it seemed to be pretty aggressive about keeping the car at the set speed via braking or downshifting (on an old E60).

[IK6SPEED]

Originally Posted by Brett530

Yes, thanks for the helpful replies. I realize it has the ability to brake, but that doesn't mean the system should go 42 down a minor decline when the speed is set to 45.

It’s not going to lock it exactly on a speed regardless of terrain.

For obvious reasons, it will favor the low side, not the high side, which is the way it should work.

[Dog Face Pony Soldier]

I understand you don't have Active Cruise Control, but with Active Cruise Control you can prevent the application of brakes by applying at least 1% throttle. Perhaps try pressing the throttle the smallest amount.

[blankito]

I drove Chevy trucks that does exactly what you were expecting...

Driving down a hill at 110km/h and it would go way beyond, like 120-130km/h...

IMO, it was the most stupid thing ever because if a cop is down the road, you get pulled over even though you were using cruise control...

I prefer BY FAR the German cars cruise control that actual keep the speed you set it up to!!

[COKen]

Originally Posted by blankito

I drove Chevy trucks that does exactly what you were expecting...

Driving down a hill at 110km/h and it would go way beyond, like 120-130km/h...

IMO, it was the most stupid thing ever because if a cop is down the road, you get pulled over even though you were using cruise control...

I prefer BY FAR the German cars cruise control that actual keep the speed you set it up to!!

What your trucks did was the way most normal cruse controls have worked for ever. The applying brakes is a relatively new thing. My 2015 GMC truck and my 2002 M Roadster don't slow down when using CC, it just keeps the speed around where you set it, but doesn't apply brakes ever. This is old school and will only slow down to the extent engine braking can slow it down, but no more. With forced induction engine braking is somewhat lower than non-FI.