Shift lights in HUD
Thread Starter
Intermediate
Joined: Jun 2010
Posts: 26
Likes: 4
From: lindon utah
Shift lights in HUD
I just completed the 500 mile oil change in my new C7 GS. In manual mode there are shift lights at the top of the HUD. There is nothing in the manual about how to use them. What are they indicating and how are they used? Thanks for any help oh great guru's of the C7's. I love the car, by the way. It is an amazing step up from the C6. Still trying to learn all of the things it can do. 
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Popular Reply
Aug 1, 2017, 09:32 PM
Race Director
Joined: Mar 2005
Posts: 16,684
Likes: 1,193
From: La Center WA
It's amazing, the condescension and hostility that can be generated by a simple question that's posed in a forum that's supposed to help people with answers to their questions, simply amazing. 
Safety Car
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
Really? How hard is it to figure out? As you approach the red line the lights are intended to tell you it's a good time to shift now. Are you really haven't that much difficulty understand this simple concept? I got it the second I saw it. 
Last edited by defaria; Aug 1, 2017 at 10:44 AM.
Thread Starter
Intermediate
Joined: Jun 2010
Posts: 26
Likes: 4
From: lindon utah
Then tell us what you haave figured out. The lights do not come on in a succession, in a straight line, but are split. Appropriate any help.
Drifting
Joined: Jan 2005
Posts: 1,441
Likes: 557
Once your high enough in RPM's, and in the proper display, (track version of HUD) the light comes on at either end. Then they walk towards he middle. When the dots touch in the middle they change color and your at redline. I shift on the last dot before the touch happens or I bounce the limiter on track.
Safety Car
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
I already told you what I figured out - As you approach the red line the lights are intended to tell you it's a good time to shift now. I don't know what you mean by "do not come on in succession" in succession to what exactly? In a straight line? In Track mode there are lights that come from the left and right toward each other. Last time I checked that line was straight. And I don't know what you mean by "split". "Appropriate any help"? Really? I'm not sure that's even English. Perhaps you should try harder to explain what your problem seems to be then maybe I can explain. But in general the lights are telling you it's time to shift to the next gear. How hard is that to understand?
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
If you're not seeing them, you're not revving high enough.
Last edited by Foosh; Aug 1, 2017 at 11:29 AM.
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Drifting
Joined: Jan 2005
Posts: 1,441
Likes: 557
The HUD shift lights are functional in all modes in the M7, and I assume in manual mode on the A8. However, I do keep my HUD display in Track mode all the time, even when Tour or any other mode is selected on the console.
If you're not seeing them, you're not revving high enough.
If you're not seeing them, you're not revving high enough.
Le Mans Master
Joined: Oct 2005
Posts: 7,002
Likes: 2,679
Shift lights are always in HUD. In the cluster you get a "halo effect" in Sport and Tour (where the RPM gage grows a yellow then it transitions to red). Shift lights are only in Track in the cluster.
Drifting
Joined: May 2015
Posts: 1,630
Likes: 759
Somebody ask Tadge why after all the hard work he puts in to develop this high tech car, the idiot suits @ GM can't understand how important it is to properly document them so that the consumers can UNDERSTAND WTF IS GOING ON ON THEIR $70K car.
By far the most abysmal, incomplete, hard to research, poorly organized and uninformative literature I have ever received with any car new or used. Which is harder to understand since it is by far the best car I have ever owned.
Just unfathomable. Maybe GM learned that from the Chinese.
By far the most abysmal, incomplete, hard to research, poorly organized and uninformative literature I have ever received with any car new or used. Which is harder to understand since it is by far the best car I have ever owned.
Just unfathomable. Maybe GM learned that from the Chinese.
Drifting
Joined: May 2015
Posts: 1,630
Likes: 759
i.e. the entity with which to be annoyed because an end user has to come to a friggin Internet forum to get information GM should have provided him would be GM, not the forum member trying to figure out what those mystery lights on the heads up are for. I figured they have something to do with telling me when to shift, but I won't use them unless I have documentation telling me what the benefit might be. I'll shift by tach and feel like I have for 40+ years. The real stupid part is they must of put these lights in as a driver aid, but then they left it for you to figure out what it's trying to tell you. You know, like Richard Dreyfus trying to decipher the light patterns on the side of the giant alien space pod in Close Encounters.
God help me it really doesn't get much more skull farked than that.
God help me it really doesn't get much more skull farked than that.
Last edited by patentcad; Aug 1, 2017 at 08:24 PM.
Race Director
Joined: Mar 2005
Posts: 16,684
Likes: 1,193
From: La Center WA
It's amazing, the condescension and hostility that can be generated by a simple question that's posed in a forum that's supposed to help people with answers to their questions, simply amazing.
Le Mans Master
Joined: Oct 2005
Posts: 7,002
Likes: 2,679
I think it's one of those, it seems intuitive so why does it need to be explained things.
People come here for help, but sometimes a dumb question gets critiqued. Complaining about that fact only belabors the point.
Owners manuals FWIW are bad because let's face it, most people do not read them. So why spend the time detailing every little thing?
We are in the age of, if you have to explain the UI then you've failed. Either the UI is bad (majority of people don't understand it) or the person just isn't a quick learner (or doesn't experiment with the UI, either way it's not the UI's fault).
I'm sure the technologically dense don't like hearing that, but it's true, and that's life.
People come here for help, but sometimes a dumb question gets critiqued. Complaining about that fact only belabors the point.
Owners manuals FWIW are bad because let's face it, most people do not read them. So why spend the time detailing every little thing?
We are in the age of, if you have to explain the UI then you've failed. Either the UI is bad (majority of people don't understand it) or the person just isn't a quick learner (or doesn't experiment with the UI, either way it's not the UI's fault).
I'm sure the technologically dense don't like hearing that, but it's true, and that's life.
Team Owner
Joined: Apr 2013
Posts: 26,228
Likes: 4,356
From: Chirper Island
If you set your HUD to Track and your DIC to Sport you can see the relation between the the two, and the relation to optimal shift points and redline/rev limiter.
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
Thus, I'm used to seeing the shift lights all the time, since that's what I'm always looking the Track display on the HUD. I was simply pointing out that you can be in any of the console-selected modes and still see the lights if your HUD is set to the Track display.
I agree it should be better explained in the manual.
I only saw condescension and hostility in poster #3 and his subsequent posts, but that's not unusual w/ him. It seems to me everyone else was trying to help.
Last edited by Foosh; Aug 1, 2017 at 11:16 PM.
Race Director
Joined: Mar 2005
Posts: 16,684
Likes: 1,193
From: La Center WA
