How do i perform a chevy silverado computer reset?

My chevy Silverado is showing over 400 codes and want shift gears what do I do

Remove the nut off the negative battery cable with a socket set or wrench. Slide the cable off of the battery and put it aside. Turn the headlight switch to the "on" position to drain the ecm of any remaining power. Wait at least 10 minutes, then turn it back to the "off" position.

Should my key be in the on position

Trying to reset my truck computer. After a cabin light was left on it killed the battery. I jumped it with the jump starter. Engine lights on. Some of the functions are not working how to reset it help.

I did front pad replacement on my 2019 Silverado and now brake system failure 43 mph limit shows up on dash

Hasn't worked.

What I've done in the past to reset my pcm was I disconnected both positive and negative then grounded the positive to the chassis.

Iv changer out the number 6 coil pack and my check engine light keeps come on and iv reset it several times

Didn’t work what can I try now

It did not work what is the next step

Did not work

Great tip. I had a problem with 2015 chevy Tahoe. The radiator fan continued to run after I turned off the vehicle. I changed the temperature sensor and the thermostat and the fan still ran as soon as I started the engine and after I turned it off. Took the battery cable off and reinstalled after 10 mins and it stopped.

I will never bye a Chevy again you get what you pay for.

I did the batri,lights, waiting, put cable,,,etc....but still no response,,did more than one,s,,,,,,any answer's,,,,thanx

If you pull the fuse for the ecm. It will reset the ecm

All of you are wrong, watch a YouTube video. It’s so easy!

Trying to fix 2004 Chevy Silverado 2500 Duramax Diesel CCM incomplete, EGR and MIS are OK.

This didn’t reset my system

Taking it to the shop almost always works for me!!!! By the way most 3500’s have two batteries.

2006 chev diesel truck speed amateur quicks working win im driving and dash lights comes on and off

My actuator seems to be stuck on HOT (on one side- driver). Will resetting my system as described above solve this issue?

Reset computer

Silverado 2014 Extended cab, 5.3 liter. I shut truck off, alarm goes off when I push lock doors. Won't go away unless disconnect battery. Is it a Coulter or reset so when I leave vehicle it doesn't keep going off horn to alarm.

I have a question for you guys how come my 1995 GMC Yukon is losing power and has a knocking sound at about 40 mph this just started recently now mind you there's no check engine light there's no problem with the fluids there's nothing the computer can tell me it reads 12 but it's driving like c**p is it a computer thing is it a valve thing what do you guys think and also the truck doesn't want to start it takes a lot of stepping on the gas to start it and I did a timing on it as well it's on Mark check the distributor rotor and cap everything's fine it's all in its firing order I just don't get it so is there anybody out there that would know something about this because wouldn't the check engine light or smoke coming out the exhaust or any of that matter should be happening like overheating it doesn't overheat stays at its level it's supposed to be all the fluids are full and at its mark and nothing nothing changes it I change the spark plugs the wires numerous sensors have been changed I changed the water pump recently the only thing that I can come up with is I was trying to put a car alarm in my truck for getting that it already has door entry and when I remembered that I took out the car alarm that I was installing and then called it a night when I got the next morning the battery was dead and had to get a jump start well when I did that there was an arc underneath my steering column where I connected the power to the car alarm to and it wasn't covered completely so it was arcing on the plate where the wires been around and your steering column if anybody is familiar with that so I fixed that and it started but then it started running bad like really really rough like it need to be retired or the timing chain jumped so I took it to a friend's who had a timing gun and we timed it to 0 like it's supposed to be and we also went through all the spark plug wires even check the spark plugs and nothing so my buddy suggested possibly getting some different spark plugs the copper ones but that's what it's supposed to have so I did that put them in still the same thing now mind you I've been driving this because I got to get my kid to school and it's about 25 miles to the school everyday and this has been going on for about a week now and my buddy who went to mechanic school he stumped he doesn't know what it could be because if it was anything internally the check engine light would come on for number one and number two there would be some signs coming out the exhaust like smoke or anything that like that sort but the check engine light should be on it should be also overheating you know all that but it's not doing none of that everything is where it needs to be but it won't start and when it does finally start it dries rough and Knox about at 45 mph and then which is weird goes away at about 70 mph so does anyone have any answers for me out there in the car world cuz I need some help thanks

That did not reset the ECM!

That was great guys .much appreciated

Should car be off when we start ?

You all need to learn

For those of you that say it doesnt work just do it for longer, say 30 mins to be sure. It should work 100% of the time.

This didn’t reset my ECM. The issue I’m having is the CCM says Incomplete. The EGR and MIS are OK. Been driving and doing drive cycles for a couple hundred miles and still says incomplete. Recently had check engine light and had repairs done for glow plug relay and replaced 1 glow plug. And replaced EGR Vacuum hose.