Why is my chevy aveo check engine light and hold light flashing?

I put new coil pack and change the spark plugs on my 2009 chevy aveo and my hold light still flashing and temperature gauge stop working... Any suggestions on what causing 🤔 this problem

My engine and hold light starts flashing if I go over the speed of 100. I replaced the coil pack, plugs, wires, fuel filter o2 sensors, cleaned the injectors and even the whole engine later. The freaking hold light still flashes. Reached a dead end now. Any suggestions on what the problemis

My Aveo flashing hold button came on. We took the gear shift box off and there’s a small device that is close to the gear shift. It has a button. Start the car. Press the button down, put car in gear. Car works fine. No problem. Only thing is, right now, the plastic cover is off until I can replace the HOLD button switch.

New coil pack on I replaced the spark plugs and fuel injector and checked air filter and hose.nit as loud but hold and engine light still blink on and off..what else is left?

My car was flashing and idling very rough terrible actually and the tranny wasn't shifting correctly I got it home my mechanic from AutoZone came over and put a new coil new plugs in it and I just drove it around the block and she's shifting fine hallelujah praise the Lord

Some say it could be a fault in the engine wiring harness or the ECU itself. My mechanic says its the Transmission, which he is been forcing me to do an overhaul to. But I know its not the Transmission, as the check engine light goes off first and then the hold light gets triggered. Each time the OBD reader says ENGINE MISSFIRE 0P300. Which is an engine miss fire. The runs smooth as butter it just wont shift into the 4th gear when the lights flash. I have now gotten used to this and just keep driving it as is. I put the gear in neutral and switch off the engine and switch it back on and put in drive, which shifts the gear into 4th. Its either I keep driving it the way it is considering how much I have already spent on it. Or sell it to the scrap yard and shoot myself.

My breaks and exhaust pipe

My 06 shifted hard but had hardly no power getting going and had no passing gear (automatic) the hold light is flashing. I have been looking up to what it could be. Seen where it might be camshaft position sensor, Iam going to replace it, looks easy to do, Iwill give update later

My check engine light and hold flashing at the same time I'm still driving it .it is still shifting gears going up and down hill but I'm still going to put it in the shop then later I'm going to trade it.

There is a hold button beside the gear shifter. Turn the key to the on position without starting the car and push the whole button. When I start the car after that, the whole light stops flashing.

Brake light switch Its self applying and causing the 2 lights to flash and stop the car from shifting properly

I have also same issue, I replaced coil pack, spark plug but it still shows check engine light, hold during driving.

Engin woringlight and hold light

I think the crankshaft sensor need to be replaced, because it gives a bad signal to the computer to misfire the ignition coil