Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Trouble Shooting/Problems/Service (http://www.jeepgarage.org/f107/)
-   -   Hill decent (http://www.jeepgarage.org/f107/hill-decent-14640.html)

billyp 11-01-2010 02:50 PM

Hill decent
 
Anyone have a problem entering hill decent mode from 4w high? Seems to work fine in 4w lo/rock. I followed the procedure in the manual several times on different fairly steep hills and always get the same results ...indicator light flasher and then goes out(4w h). Any suggestions?

cesarnohra 11-01-2010 03:02 PM

Re: Hill decent
 
same here only worked with 4LO. I think its designed to work only with 4Lo

moosehead 11-01-2010 03:17 PM

Re: Hill decent
 
HD is available in both high and low 4wd. If in rock mode, HD is only available in low 4wd. If driving > 20 mph, HD will disengage or not engage to begin with. HD will also not engage on flat ground, ground needs to have some tilt.

paui4m 11-01-2010 03:18 PM

Re: Hill decent
 
I too could only get it to work in 4Lo (and was stopped in Auto mode when I tried enabling it in 4Hi)

Knightrider03m 11-01-2010 05:59 PM

Re: Hill decent
 
I think it only works in 4lo

Marlon_JB2 11-02-2010 02:12 AM

Re: Hill decent
 
Quote:

Originally Posted by Knightrider03m (Post 294232)
I think it only works in 4lo

What he said.

jeep2011 11-02-2010 07:02 AM

Re: Hill decent
 
Mine works just fine in HI range. It has to be in another selection other than auto mode for it to work.

moosehead 11-02-2010 08:06 AM

Re: Hill decent
 
See owners manual

Scorelow 11-02-2010 08:12 AM

Re: Hill decent
 
Hill Start Assist/Hill Descent Control
• The Hill Start Assist system assists the driver when starting a vehicle from a stop on a hill.
• The Hill Descent Control system maintains vehicle speed while descending hills during off-road driving situations and is available in 4WD HIGH range and 4WD LOW range.
• Refer to your Owner's Manual on the DVD for further details.

Scorelow 11-02-2010 08:15 AM

Re: Hill decent
 
Hill Descent Control (HDC) — Four-Wheel Drive Models With MP3023 Two-Speed Transfer Case Only HDC maintains vehicle speed while descending hills during off-road driving situations and is available in 4WD HIGH range and 4WD LOW range. To enable HDC, press the HDC switch or put the Selec-TerrainTM system in “ROCK” mode (“ROCK” mode is only available in 4WD LOW range).
Hill Descent Switch
When HDC is enabled, the HDC icon will be illuminated in the instrument cluster. HDC will automatically apply the brakes to control downhill speed to the selected level when necessary on grades greater than approximately 8%. It will usually not activate on level ground.
5
396 STARTING AND OPERATING
The HDC speed may be adjusted by the driver to suit the driving conditions. The speed corresponds to the trans- mission gear selected.
HDC operation can be overridden with brake application to slow the vehicle down below the HDC control speed. Conversely, if more speed is desired during HDC control, the accelerator pedal will increase vehicle speed in the usual manner. When either the brake or the accelerator is released, HDC will control the vehicle back to the origi- nal set speed.
HDC Operation in 4WD High Range
To enable HDC, press the HDC switch. If the vehicle speed is below 20 mph (32 km/h), the HDC icon will be illuminated in the instrument cluster and HDC will function. If the vehicle speed is above 20 mph (32 km/h), HDC cannot be enabled in 4WD HIGH range. If the HDC button is pressed when the vehicle speed is greater than 20 mph (32 km/h), the HDC icon will flash and then turn
off. If HDC has been enabled below 20 mph (32 km/h) and the vehicle speed goes above 20 mph (32 km/h), the HDC icon will flash. If the vehicle speed remains above 20 mph (32 km/h), but below 40 mph (60 km/h), for one minute or goes above 40 mph (60 km/h), HDC will be turned off. To turn off HDC, press the HDC switch.
4WD High Range Set Speeds
• 1st=3mph(5km/h) •2nd=6mph(10km/h) •3rd=9mph(15km/h) •4th=12mph(20km/h) • 5th = 15 mph (25 km/h) • DRIVE = 15 mph (25 km/h) • REVERSE = 3 mph (5 km/h) • NEUTRAL = 6 mph (10 km/h)
• PARK = HDC will not function
HDC Operation in 4WD Low Range
To enable HDC, press the HDC switch or put the Selec-TerrainTM system in the “ROCK” mode. The HDC icon will be illuminated in the instrument cluster and HDC will function. If the vehicle speed goes above 20 mph (32 km/h), the HDC icon will flash and HDC will not function. To disable HDC, press the HDC switch.
4WD Low Range Set Speeds
• 1st = 1 mph (1.6 km/h) • 2nd = 2.5 mph (4 km/h) • 3rd=4mph(6km/h) • 4th = 5.5 mph (9 km/h) • 5th = 7.5 mph (12 km/h) • DRIVE = 7.5 mph (12 km/h)
STARTING AND OPERATING 397
• REVERSE = 1 mph (1.6 km/h) • NEUTRAL = 2.5 mph (4 km/h) • PARK = HDC will not function
HDC is intended for low speed off-road driving only.
At vehicle speeds above 20 mph (32 km/h), HDC will no longer function. When the vehicle speed drops below 20 mph (32 km/h), HDC function will automatically resume and the vehicle speed will return to the chosen set speed.

billyp 11-02-2010 03:04 PM

Re: Hill decent
 
Tried all this to the letter, all modes (auto,snow sand/mud) still no go in 4wh.

2011 OL QDII Q/L

rdalcanto 11-02-2010 03:32 PM

Re: Hill decent
 
Are you on at least an 8% grade?


All times are GMT -5. The time now is 02:35 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community