Go Back   Club Lexus Forums > Lexus Model Forums > GX Models > GX - Second Generation
Sign in using an external account
Register Forgot Password?

HSA : Hill Start Control Assist

Thread Tools Search this Thread Display Modes
Old 02-19-13, 12:46 PM   #16
Trader Score: (0)
Join Date: Jun 2006
Location: NJ
Posts: 2,746

Locking the brakes for 3/5 seconds and sliding backwards/sideways could be very dangerous on slippery surface (especially off-roading).

This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
2011 Premium GX460 Red/Black (Nav/ML/PA/Wide-View/Crawl/Tow Pkg/ClearBra/aFe Pro-Dry dropin/LT-LTX MS2))
2007 IS350 Red/Blk (Lux-18"/Nav/ML/Park Assist/Spoiler/ClearBra/F-Sport dropin/JoeZ/Greddy Exhaust/TSW Snetterton Wheels)
Koz is offline   Reply With Quote
Old 02-19-13, 01:44 PM   #17
Lead Lap
Trader Score: (0)
Join Date: Jan 2003
Location: Maryland
Posts: 794

^ Agreed, when the temperature outside get to freezing the LS gives you a warning about using the feature.
Current Vehicles
2008 LS600hL Starfire Pearl/Cashmere (sold, best car I have owned)
2012 GX460 Premium Starfire Pearl/Sepia
2013 GTR Premium White/Black
1997 Viper GTS Blue/White Stripes (sold)
patgilm is offline   Reply With Quote
Old 02-19-13, 05:21 PM   #18
Lead Lap
Trader Score: (0)
Join Date: Sep 2012
Location: ON
Posts: 494

Originally Posted by Koz View Post
I have never heard of this feature on any Toyota/Lexus vehicle. If possible, could someone provide some info!

My previous Toyota had that. Basically when standing on the incline and fully depressing the brake pedal the vehicle would beep at you and hold the brakes for a couple of seconds so you can give it enough gas to move forward. I only used it once when exiting an underground parking garage - I stopped on a pretty big incline in order to pay and some guy stopped right behind me and very close! Needless to say I didn't want the vehicle rolling back
Quadro is offline   Reply With Quote
Old 03-03-14, 02:45 PM   #19
Pole Position
Trader Score: (0)
mcomer's Avatar
Join Date: Nov 2013
Location: IL
Posts: 220

The Hill Start Assist is on all Toyota/Lexus Hybrids. When stopped on a hill a conventional IC can be made to maintain postion on the uphill stop by "stalling" the automatic transmission torque converter with a light press of the accelerator. Heats up the trans and wastes fuel but we've all done it!

Since the Hybrids are very often not running the IC at all while stopped, they have included the Brake Pedal actuated HSA that simply holds the main brakes for up to three (3) seconds displaying the yellow icon and sounding a chirp. You can override this at any time before 3 seconds by pressing on the gas. Otherwise it just times out, chirps again and you may begin rolling backwards. It does not engage no matter how hard/fast you hit the hooks if the car is still moving forward, must be already stopped first.

Because the RX450h has the HSA (and the detailed Fuel Economy Graphs in the Nav Screen ) the RX350 gas version has them also. As mentioned earlier, the LS460 system is more Limo Chauffeur oriented, engage the Hold button for a standby setting sort of like Cruise Control then press a separate button to hold.
mcomer is offline   Reply With Quote
Old 03-03-14, 02:45 PM

Similar Threads
Thread Thread Starter Forum Replies Last Post
2015 Mitsubishi Outlander Sport Hoovey2411 Car Chat 4 06-14-14 12:45 PM
Navigation System Not Recognizing Town dbs600 IS - Third Generation 5 04-13-14 06:22 PM
Hill Start Assist Question RXSF RX - Third Generation 11 02-11-13 05:04 PM
Hill Start Assist help please x10civ RX - Third Generation 4 08-28-11 11:22 PM
HAC question zpaul GX - Second Generation 6 03-13-10 10:32 AM

2006, 2013, assist, brake, control, ct, ct200h, es350, gs430, hill, hs250h, lexus, pedal, press, rx350, start, work

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 05:51 PM.

Join ClubLexus

Copyright © 2000-2015 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS

Get all contact info