I have noticed on my 1.8Tsi 4x4 Yeti that when coming to a stop on a slight uphill incline using the footbrake and then applying the handbrake a strange thing happens.

Once the foot brake pedal has been released after a couple of seconds the car settles slightly and feels as if the brakes have been released for a split second, the first time I noticed this I thought the handbrake had released somehow, but it had not and was still holding the car stationary.

I am now wondering if there is some electronic wizardry happening, and what I am feeling is the front brakes being released after a slight delay, mine has the uphill start assist feature that holds the brakes on for two seconds on a hill start, I wonder if this is somehow linked in with the brakes when coming to a stop as well, I have checked and the "off road button" is not pressed when this happens.

 

Any ideas anyone please.

 

Thanks

Phil

Edited 7 February, 201511 yr by pgp001

Mine does this, too - as did the previous TIBETs, all of which had Hill Hold Control.

 

My theory is exactly as you say: handbrake on but then a couple of seconds later the hill hold cancels (possibly acting only on the front brakes?) and the car settles back on the rear brakes. 

 

I'm ready for it but it still unnerves me!

HHC or Hill Hold Control.

Can be deactivated with VCDS if it bothers you and you don't need / want it.

Well, hill hold on the clutch used to be a major part of the driving test, when you see some drivers, you wonder how they passed their test in the first place. Mind you, some don't know what indicators are for...

So what happens if you take your test in a vehicle with hill hold...?

I had to ask about this strange "hold" as I couldn't

get the car to move off my steep drive, mine is a

2WD Yeti elegance.

Perhaps I'm misinterpreting some of the answers, but the OP's question wasn't specifically about Hill Hold Control but why when setting the handbrake on a hill (so as not to dazzle drivers behind...) after a couple of seconds, the Yeti feels as though it slips back an inch - but is actually sort of riding up on the suspension - if that makes sense.

 

The thought is, that it is the HHC switching off as it doesn't remain armed with the handbrake applied - it only works when held on the foot brake (which does dazzle drivers behind....).

Pull up to junction going uphill, apply foot brake thus activating HHC.

Spot lots of traffic coming so (being courteous to the driver behind and not dazzling them with brake lights) apply the hand brake.

Take foot of brake pedal, wait two seconds and the HHC disconnects as intended causing the vehicle to 'roll back' down the hill onto the rear wheels which have the handbrake applied to them.

Effectively it has gone from four brakes on the foot pedal to two on the handbrake. The movement is the car settling into the rear brakes and suspension levelling out (as the braking power is now at the back of the car or the downhill end).

As it is HHC that is causing the OP's unsettling experience then that is the topic of discussion.

As I said, it can be deactivated under normal circumstances and then activated with the off-road button active.

The operation of Hill Hold Control has nothing to do with the setting of the Off Road Button.  Not on my Yeti, anyway.

 

What the OP describes is actually one of the things I hate about HHC.  If you come to a stop on a really steep hill, you can find that you've only set the handbrake enough to hold the car stationary while HHC is still active, so when HHC de-activeates after 2 seconds, the car starts rolling back.  PITA.

 

Are you sure that HHC can be disabled through VCDS?  Can you provide details of how to do it, so that I can offer appropriate recompense to someone nearby with VCDS to do it for me?

Edited 7 February, 201511 yr by ejstubbs

It is related to pressing the off-road button as it is one of the features that it activates.

This refers to the FL, but it's the same in the pre-FL: http://www.skoda.co.uk/models/hotspotdetail?HotspotName=Yeti+Outdoor+-+Off-road+button&Page=technology&WebID=7ec91064-ebba-4a7e-bae9-4c864868b2af

When I got my Yeti (a 2010 with the button) HHC wasn't active. I used VCDS to activate it all the time (out of curiosity).

It is related to pressing the off-road button as it is one of the features that it activates.

This refers to the FL, but it's the same in the pre-FL: http://www.skoda.co.uk/models/hotspotdetail?HotspotName=Yeti+Outdoor+-+Off-road+button&Page=technology&WebID=7ec91064-ebba-4a7e-bae9-4c864868b2af

When I got my Yeti (a 2010 with the button) HHC wasn't active. I used VCDS to activate it all the time (out of curiosity).

 

OP says ORR has NOT been pushed.

Thanks for the replies guys, it seems like normal operation then. I had assumed "Uphill Start Assist" was only active when the "Off Road" button is pressed, but having checked the manual (which I should have done first) it looks like it operates all the time. ------Quote:-

 

The uphill start assist makes it easier to start off on steep hills. The system assists a start

off by holding the brake pressure produced by the brake pedal actuation for approx. 2

seconds after releasing the brake pedal. The driver can therefore move his foot from

the brake pedal to the accelerator pedal and start off on the slope, without having to

actuate the handbrake. The brake pressure drops gradually the more you operate the

accelerator pedal. If the vehicle does not start off within 2 seconds, it starts to roll back.

The uphill start assist is active as of a 3% slope, if the driver door is closed. It is always

active on slopes when in forward or reverse start off. When driving downhill, it is

inactive.

 

There is another function that is activated by the "Off Road Button"  called "Start-Off Assist" which does something entirely different, I had incorrectly assumed it was the same thing.

 

Thanks

Phil

OP says ORR has NOT been pushed.

It doesn't need to be.

HHC was INACTIVE on my Yeti unless the button was pushed.

I ACTIVATED HHC with VCDS so it is active all the time.

On mine the HHC is on all the time and activated on a slope when you put your foot on the brakes, no need to use the off road button, I find it a useful feature. As Karl said, I believe what the OP is experiencing is coming up to an uphill stop, putting the handbrake on and then releasing the brakes. The HHC disengages 2 seconds later and the car rotates around the rear wheels, which are braked, to try and level off. A completely normal behaviour and nothing to worry about.

Ian

That sums it up perfectly.

 

Thanks

Phil

It is related to pressing the off-road button as it is one of the features that it activates.

 

HHC is not activated by the off-road button, it operates all the time.  The link you provided is to a brochure, written by a marketing department.  It's been noted a number of times on this forum that Skoda UK's brochures are often inaccurate and/or misleading, and in particular the confusion in many of the brochures about what the off-road button actually does.  The owner's manual describes the HHC function correctly (page 144 in the latest version available online) - and does so before the section where it (correctly) describes the different functions provided by the off-road button.

 

Caveat: your VCDS modification may have ended up with HHC only being active when the off-road button is pressed, but that's not the way it comes if you order HHC from the factory.

 

Bear in mind that HHC is a separate configuration option to the off-road button.  The off-road button can only be ordered on 4x4 models but there's no such restriction on HHC.  The online configurator will happily offer you HHC as a £100 option on a FWD manual Yeti S, but not the off-road button.  To be able to option the off-road button you have to start off with one of the 4x4 variants of the Yeti Outdoor.

 

I'd still be interested to know how HHC can be disabled using VCDS!

I'd still be interested to know how HHC can be disabled using VCDS!

When I get a chance I will go plug VCDS in to mine and document the instructions.

 

It's unlikely to be this week though as I am manic.

Nobody has mentioned the affect on the hill hold control with a vehicle fitted with the DSG automatic gearbox. When the cart is stopped and the footbrake applied, the transmission becomes disengaged (this is to prevent wearing of the clutch(es)) and the car is held on the footbrake. when the footbrake is released:-

    The hill hold control will hold the vehicle for 2 seconds (or earlier if the accelerater is pressed to start the vehile off)

    The transmission will engage allowing the vehicle to start off if the accelerator is pressed

If the handbrake is applied when stopped, then if the foot is taken off the footbrake, the hill hold control will disengage after 2 seconds BUT as the footbrake has been released the transmission will NOT disengage so the engine will try and pull the car forward against the handbrake.......wearing out the clutch (there is no torque converter as on a 'traditional' automatic).

Correct in the essentials, I think.  Not good practice to use the handbrake except in P or N, and on the flat my handbrake won't in fact completely hold the car in D. 

Does anyone have a Monte Carlo DSG? The often incorrect brochure states that Hill Hold is standard with DSG, now either mine doesn't have it or it's not working. My last two Yeti had it both of which were manual so I am familiar with the system.