Did you ever figure out what was wrong with the car ? I’m experiencing the same issue .2014 Chevy Cruze LT, ~65,000km
So I joined this forum about 5 minutes ago to see if any of you guys had the same problem as me.
Here's some background. So my car started to flash the warning lights mentioned in the title. While doing this the speedometer and rpm gauge would drop to zero, and then return to working. After a couple days of this happening intermittently, while driving my car would suddenly feel like the gears had stuck. Like no matter how high the rpms got it would not change gears, and when I start from a complete stop the acceleration was incredibly slow.
I took it to a dealership and they replaced the negative battery cable. They told me this fixed the problem however on my way home from picking the car up the same issues occurred, although not the "stuck gear" problem, however this did happen again. When it did, I pulled over and shut my car off. Problem was that it didn't start again. When I crank the keys, nothing would happen. No sounds, nothing. After maybe 8 or 9 tries the car started and I was able to get it to work. I brought it in to a dealership that afternoon and they removed my insurance monitor and told me that was the issue. Same think happened again, but I needed to have my cat towed to the dealership this time.
This round at the dealership they replaced the ecm and the wire harness (?). After i picked the car up, it worked for a day, and I'm back to the same 3 service lights coming on and the speedometer/rpm gauge dropping to zero. The "stuck gear" thing has not happened yet nor has the car failed to start. I'm bringing it in for the fourth time this afternoon but it's getting a little frustrating.
Sorry for the long winded post. I'm not exactly what you'd call a car guy, so I hope my description of the problems made sense. If anyone's had the same issue, or has any idea what would be causing this it would be greatly appreciated. Thanks!