2014 Sonic display issue

[Nolander1957]

. Over the last 7 months I have had my Sonic in four times for the same continued problem. I understand that it an intermittent problem and hard to catch it in the act of occurring and the service staff has been very attentive to looking into it, but I am beginning to get concerned as to whether this will ever get solved and when it may become a more severe problem. But let me first explain the problem. Usually in the morning as I am driving to work my display does the following: the LED display area flashes brighter and the speed, trip mileage, odometer disappear and return instantly, at the same time the Tachometer drops to zero, the LTP indicator light, and the anti sway light all flash on then off. This happens several times over a one to two minute period. When it stops the airbag light is on and stays on. It has also once disabled the AC (cooling only, which reset when the car was shut down and restarted), and it also seems to affect the speed of the turn indicator.

I have had the Service Dept. look at it several times and they have twice changed the Negative cable on the battery, as the computer throws a low neg. voltage code (DIDN'T FIX IT). Plugged and replugged every cable to the dash area to reseat the connections (DIDN'T FIX IT). Changed the BCM(body control module) (DIDN'T FIX IT).

I don’t know what to do now but I'm worried it may progress and cause a more fatal failure some day. So far it is still under warranty, but I'm afraid it may continue beyond the warranty and never get solved.

 

[Xpod666]

Maybe if you install a hyper ground system will help your case out.

 

[ICARO]

Hi, I have a similar problem in my sonic 2012 (named "Aveo" in Spain)

After start, my display does the following: the LED display area dissapear and the speed, trip mileage, odometer disappear, all... until I move the computer switch in left knob to show partial, kms, etc. then, display gone to work properly.

On the following days, the problem reoccurs

 

[ICARO]

Sorry for the translation, I'm Spanish. I have solved the problem, I will try to explain it: the bulb of the left front headlight (driver's side) had melted and in the digital box it appeared for a moment "code 20" so it was the only information shown and my wife just told me that no information of distance, speed, etc. appeared. Bulb changed in 5 minutes and problem solved.