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freelander2002



Member Since: 24 Aug 2015
Location: Cheshire
Posts: 213

England 2010 Freelander 2 SD4 HSE Auto Santorini Black
GRC HDC Auto

Hi all,

With the possibility of snow I have started to read some of the posts on here regarding the terrain response etc.

Firstly if there is shall we say a bit of snow/ice would you drive round as normal with the snow programme selected or are all the programmes for lower speeds?

Secondly ive read about gradient something control for when using HDC uphill. The GRC holds the car like having the handbrake on if im correct.......i have an auto, doesn't an auto do this anyway on uphill.....when i take foot off the brake it doesnt move until i apply the accelerator irrelevant of the gradient?

Bit confused but im sure someone on here can put me right.

Ta 2010 HSE SD4 in Santorini black
(Privacy glass, leather/heated seats, ICE, Verde AS M+S)

2002 Freelander GS TD4
(sold 2011)

Post #315183 13th Jan 2017 2:59 pm
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dunkley201



Member Since: 09 Jul 2011
Location: Lincolnshire
Posts: 2739

United Kingdom 2010 Freelander 2 TD4 HSE Auto Stornoway Grey

Re your first question. If the road is covered with snow/ice, by all means switch to GGS. Still take care, especially with your braking distances. (No amount of tech systems cope with the laws of physics - you have a heavy car, on ice it will take greater distance to stop) If the road becomes clear, enabling higher speeds, switch back to normal drive. Special programs are for slow/hazardous driving, ie slow speeds.

Secondly, HDC is Hill Descent Control - for going downhill under control. Yet again, this will be subject to you tyres maintaining grip. Most don't grip on ice! Your 2010 model has no "hold" or "hill start assist" for hill starts. The auto will tend to hold on a slight hill & will roll forward when on the level - as mine does.

Bob 10MY (Sept 09) TD4 HSE Auto in Stornoway Grey (Now Gone)

08 FL2 TD4 SE Manual in Rimini Red (Now Gone)

Post #315188 13th Jan 2017 3:34 pm
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pab



Member Since: 28 Aug 2012
Location: Now in Mid-Wales
Posts: 2005

United Kingdom 2009 Freelander 2 TD4 XS Manual Lago Grey

GRC is supposed to be a feature of HDC - from the manual:

Quote:
Gradient release control (GRC)

With HDC activated, if the vehicle is stopped on
a slope of 20%(1 in 5) or more using the
footbrake, GRC will become active (except in
Terrain Response sand program). During a hill
ascent when the footbrake is released GRC will
automatically delay the brake release to allow
the driver to take up drive, and build up engine
torque. The brakes will then gradually release
to allow the vehicle to move smoothly away.
When descending a hill, a similar brake hold
and gradual release is employed to provide a
smooth transition in to HDC control.
GRC operates in forward and reverse, and
requires no driver intervention.


That said, I've never actually known it to kick in, despite trying to provoke it on a hill which should have been steep enough. GRC doesn't hold the car until you move off (it's not like Subaru's hill start assist, for example) it just releases the brakes gradually when you release the pedal.

Post #315191 13th Jan 2017 4:58 pm
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Stuartc



Member Since: 01 Dec 2014
Location: Perth, Australia
Posts: 2292

Australia 2015 Freelander 2 SD4 HSE Auto Aintree Green

Interesting what you say about GRC, later models equipped with "neutral functioning" operation is completely different.
It's on regardless of HDC or terrain response.
It's noticeable in everyday driving, holding on hills and even getting in and out of my garage holding the vehicle as I change from drive to reverse whilst maneuvering. MY15
Tyre Pressure Monitoring System (TPMS)
Surround Camera System
InControl Apps soon to be replaced with CarPlay (WIP)
Meridian Premium Surround Sound
Digital Audio Broadcast
Timed Climate
Cruise ECO Data
Follow Me Home Reverse
Extra Features Menu
Picture In Motion
4x4i screen (WIP)
Digital Broadcast TV
Meridian Rear Media with WIFI
Factory Powered Tailgate
Blind Spot Monitoring (BSM)
Reverse Cross Traffic Alert (RCTA)
Electrochromatic Wing Mirrors (WIP)

Post #315219 14th Jan 2017 2:18 am
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