2016 C7 speedo gauges shut off while driving
Thread Starter
Instructor
Joined: Apr 2012
Posts: 150
Likes: 18
2016 C7 speedo gauges shut off while driving
Anyone else have had this problem. Tried to search and found nothing
I have meth/headers/supercharger went through all the wiring for meth and everything is in place and good. My speedo and gauge just shut on and off while driving at random times. Can't figure it out and don't know what to do? Scared to take it to dealer I don't want them messing with my tune and aftermarket stuff I have on
I have meth/headers/supercharger went through all the wiring for meth and everything is in place and good. My speedo and gauge just shut on and off while driving at random times. Can't figure it out and don't know what to do? Scared to take it to dealer I don't want them messing with my tune and aftermarket stuff I have on
Race Director
Joined: Mar 2010
Posts: 16,007
Likes: 827
Hey KostaT26,
I know you're hesitant to take it to your dealer, but if you decide that's the route you'd like to take, please don't hesitate to send us a private message!
We can work alongside your dealer to ensure this is properly addressed.
Happy Thanksgiving,
Corey K.
Chevrolet Customer Care
I know you're hesitant to take it to your dealer, but if you decide that's the route you'd like to take, please don't hesitate to send us a private message!
We can work alongside your dealer to ensure this is properly addressed.
Happy Thanksgiving,
Corey K.
Chevrolet Customer Care
Tech Contributor
Joined: Oct 1999
Posts: 41,055
Likes: 9,817
From: Charlotte, NC (formerly Endicott, NY)
Not sure what you mean by Speedo and Gauge? Is it only one gauge or all of them? Does the HUD speed disappear as well? If it doesn't the problem is probably in the gauge cluster since they both work off the same signal from the ECM.
Bill
Bill
Thread Starter
Instructor
Joined: Apr 2012
Posts: 150
Likes: 18
It's the 4 gauges around the screen and the screen itself. It's weird cause if I'm cruising normal it will rarely do it but as soon as I hit wide open throttle for 5 seconds and let off it will start doing it it will like blink on and off and my gauges go to zero screen goes black then start back up like 20 times I don't have hUD option on mine so i wouldn't know if that shuts off too.
Race Director
Joined: May 2008
Posts: 10,742
Likes: 629
From: Manheim Pennsylvania
The driver display and the center multi function display went black a few thousand miles ago. Just before the displayed information was all incorrect. The shut down lasted about thirty seconds, when the display returned all the information was correct. Like the computer rebooted. Has not happened since.
Pro
Joined: Nov 2013
Posts: 588
Likes: 222
From: Fuquay-Varina
My 2014 did this a few weeks ago while driving to work. I work midnight shift so yeah...that was fun having that happen in complete darkness. When it came back all of my DIC settings had reset to factory.
I've been through the car to check all the grounds multiple times since and haven't found the root cause yet. Gotta love electronics.
I've been through the car to check all the grounds multiple times since and haven't found the root cause yet. Gotta love electronics.
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Verdad Gallardo
Tech Contributor
Joined: Oct 1999
Posts: 41,055
Likes: 9,817
From: Charlotte, NC (formerly Endicott, NY)
As for your display the gauge data comes from the ECM across a serial data line. If the line/wire has an intermittent connection the gauges would act unusual but the problem could be due to a similar problem in the instrument cluster. When you had your mods done did somebody remove the connectors from the ECM. If they did the problem may be there. It doesn't take too much to get a pushed pin when reconnecting those connectors and you could get an intermittent condition there.
Bill
Instructor
Joined: May 2015
Posts: 119
Likes: 6
From: San Antonio TX
I experienced something similar after installing headers, the main connector harness (pass side) didn't click in all the way when I put it back together and the car wouldn't start after it was shut off.
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
