TCM Problems! Transmission Control Module (2007-2011 GMC Sierra 1500) 

Thanks for doing everything out of frame

Thank you for sharing. My 2008 GMC Serria suddenly went crazy. It shifted very hard the first shift. After that it shifted fine. My gear indicator on dash did not illuminate. Backup lights did not work, door locks went crazy. Several other things failed to work. After watching your video I ordered a rebuilt TCM from All Computer Resources online. They were great to do business with. Every step they took, they informed me. I just received the part and installed in a matter of minutes. Everything works as it should, yeah!! Feels good to have my truck running good again. I appreciate your help. Thanks again!! William

Thank you for your video. My 2007 Silverado had a U0101 code, in limp mode, no gear selector, no speedometer and door locks gone crazy. Saved myself some money by seeing your video and replacing the TCM, rather than taking it to the shop.

My 2007 Avalanche 4x4 had a similar issue...Drove fine, parked it...came out in the morning and Check engine lamp came on and the rig went into limp mode....Scan it and had the U0101 code......Nothing more....I ordered a pre programmed TCM from the outfit you used here....A few days later the fresh one showed up.....Installed and the issue was solved.... Great video you posted..

Nice fix partner!

Right on! Nice job. 👍

My 09 Yukon Denali did something very similar. All gauges except for the voltmeter died while driving and truck wouldn’t upshift unless I put it into neutral and back to drive. Found a bad ground that had bricked my TCM. Thanks for the video.

Thank you for the video. It lead me to the link. All computer resources i think, they were great in every way just keep hitting 0 when you call or they dont answer. Just to let everyone know there is a blue clip that holds the gray one from opening. Also it's much easier to pull the entire tcu out to unclip it.

Thank you for the video.

Im having a similar but different situation, when I have my gmc sierra 2011 on park position the truck start lock and unlocking the doors when a shift to another gear it doesn’t make it, I check ground power, I try to found the transmission gear position sensor but in the data park/reverse is flashing

I have 05 Silverado tow mode stuck on seems like only going to 3rd got rebuilt Trans new torque converter codes shows open circuit

Have the same issue with my 09 2500, TCM came in today fingers crossed it fixes it!

Have a 2011 Chevy Silverado I had the transmission rebuilt in 2020 and now it will only crawl! All gears work no codes popped up

have a2010 Silverado transmission goes to neutral when stopped give a little gas and it takes off and shifts fine. if you pickup the rpm from 500 to 700 it stays in gear don't know what is wrong? fluid and filter is new

I'm having a problem with 2004 GMC Sierra that doesn't go into low or overdrive?

Yesterday I changed the filter and fluid on my 2007 GMC Sierra 1500 with the 4l60E transmission..came out great until my check engine light came on..I reset it my scanner and the light came back on...there are 2 codes...the P0700 for the TCM and a P0976 shift solenoid B control circuit low.. when I removed the trans pan I barely bent the shift bracket outwards so I could slide the pan of and on...then bent the shift bracket back to its original spot..I see a wiring harness right there by the lower shift linkage going into the transmission..and it kind of seems like it's a little loose as in possibly worn out ? It is on the drivers side by the transmission shift linkage...anybody know what that is and what it's called ? I know I don't like what I see and tried to zip tie it together for a better tighter fit but the tie kept sliding off so I left it... all I did was change the filter and fluid/gasket and now these 2 codes.. I will probably change the A & B solenoids but I hate having to take the tranny pan back down with the fresh fluid in it..I will probably try to get a new pan with the drain plug in it to make it easier.. anyway excellent video here. Also I checked the fuses on the drivers side under the cover and the 2 or 3 that it listed were all good.

2008 gmc sierra 1500 vortec max. When weather gets cold (40 ish) and after engine warms up my entire truck goes nuts electronically intermittently. Gauges, locks, lights, and starts shifting hard as hell, esp in 2nd. If I kill truck it won’t restart for several minutes…new battery and cleaned and grounds looked good with no fix. Runs good during warm weather. 🤷🏽‍♂️

Thx

So glad i found your video I installed a newer 6L80e in my 2009 Avy. Took it to the dealer to flash and they some how bricked the TCM. No gear selection light, whining and grinding from the pump (transmission), and other mess. They will not take ownership they messed up. Im so mad!! Any suggestions?? They say transmission is bad. Lies

Will the transmission stop slipping and overheating after getting a new TCM? The TCM caused it to slip and overheat.

Having the same issue. Just replaced my TCM with no luck. Getting power at fuse box. No fraying I can see. Pins look good.

My poz cable may have arced out on my tcm. If so would that cause it not to turn on?

When ur tcm went out did it act like it was stuck in gear and wouldn't drive forward or reverse

My 2007.5 Silverado won’t start at all not even like the clicking sound of a dead battery. No Indaxtor light on the dash sound what gear I’m in. Do you think it’s tcm?

@TheShopWorldWide did you program the tcm before installing it?

What is the indicator light you're looking for. And where is it located

i have a 2011 silverado with the 4l60e transmission that has had to be rebuilt twice so far in its 230000 miles... these are my symptoms.. speedometer starts jumping followed by loss of acceleration for a minute.. also while towing anything in tow mode if the speedometer jumps it will kick it out of tow mode.. i have replaced the speedo sensor and installed a new stepper motor on the cluster for the speedo.. still does it.. then every once in a while ill get the engine code of canbus a stopped communicating.. i can reset the code and it will act fine for awhile.. during the summer it hardly did it.. then when it started getting cold recently it has started acting up again leading me to believe that the board on either the tcm or ecm expands in the summer allowing contact and when it gets cold it shrinks allowing intermittent contact either at a solder joint or on the chip itself.. i have unplugged my harness from my tcm which is located in the exact same location as your gmc and found no bad pins and no frayed wires.. im leaning towards the tcm as the other day it flashed the light on the dash for the traction control turning off then immediately went back off.. cant really find any info on what module controls the traction control and the tow mode.. but i would think the tcm would control that.. i also replaced the pigtail on the harness connector for the speedo sensor.. i have a remanufactured tcm on the way and hoping it fixes it.. when it throws the engine code for the canbus a not communicating it puts the truck into limp mode and shifts really hard.. appreciate any input from anyone. thanks.

I'm chasing a problem with my shift indication on my dash as well. The little line that shoes under each gear position drops in and out. The truck is driving fine (no limp mode), but when the line goes out under the R indicator, my aftermarket backup camera doesn't work and cruise control drops out when the line drops out under D during Drive. It comes and goes and sometimes stays solid like there is nothing wrong at all. I have inspected as much of the associated wiring, but can't find any issues. I don't get any codes when I check with a standard engine scan tool. I am thinking it is the gear position switch inside the transmission or the TCM. The TCM is easier to access and it's about the same place. Any thoughts?

Did you have to reprogram the tcm? If not than which brand did you byy

I forgot to put my trans cooler clips back on. All my oil spilled out and it threw this code

I’m having similar problems whit my 08 Chevy Silverado when the gear indicator light doesn’t come on my truck shifts hard in first gear but sometimes it come on and drives just fine when I clear the codes whit the computer the gear indicator light comes on and drives fine until it gos back off do you think it’s the same problem thank you

Why does my 2010 silverado 1500 4x4 5.3 not have one there?

So check this out! After driving my truck for a few minutes, I reach in to grab my tcm, and its so hot about burned my finger tips to the bone!! Why????

Was the tcm plug and play or did you have to have it flashed

How did you get the TCM programmed to your truck Vin

Could this also cause a p2769? The tcc has been replaced already but its still giving me the code so could the connector be a possibility?

So did you have to get that TMC programmed or you just put it in there and did that

What's the mileage on the truck as of now and any issues since?

Everybody says my tcm on my 2009 gmc yukon is inside transmission but the part looks like the one on video transmission is a 40L60E

I love rockauto too. Lol

I can’t find a Tcm on my 2000 gmc do you have any idea where it’s at

Got a 2003 4.3 4l60 trans stick in 2nd an 3rd gear changed all the sensors in the trans along with harness shifts fine sometimes but most the time it’s just stuck

Did you have to have the new TCM programmed by dealership? I’m being told it has to be done or it will lock transmission and to have it towed not to drive it to dealership. We ordered part now not sure what to do.

Ive got a 2008 Silverado 1500. Checked some fuses and since no speedometer, no gear indicator light, ABS Indicator is on, runs sluggish and U0101 error code. On someone's advice I changed the speed sensor and it didnt fix the issue. Tomorrow, I'm gonna check wires to TCM, as I had recently checked fuse for A/C b4 issues started, which sounds similar to your story. Thanks for making the video.

Have this code on 2018 silverado

What indicator are you talking about?

Hey do I need to have the tcm flashed or what? Should I buy used or new

How easy is it to change the tcm? Is it just unplugging the wires? Or is there some bolts too? I'm hoping this is what's wrong with my 09 sierra

Is yours the 4 speed or 6 speed and where did you get the TCM from if you have a link?

I bent over a tall truck and I cracked a couple of ribs be careful

My new tcm is installed but when I put it in drive the light pops off again 🤷

very informative, where did you get your TCM from?

Where did you get the tcm and how much was it

And the fix is buy a New Battery...when your junky old battery doesn't start it the tcm has to be reset

Hey man where do you get the tcm module!

I Put Rebuilt Transmission 3 times Still Rimming Hot What Would case that

Any parasitic draw before it went out?

Will it make your heart not work to

I have a 2006 gmc yukon...only shifts from first to second...but!!! No indicator lights in dash🤔

Will a 2011 tcm fit a 2013?

Where you get it from ? I think it have to be programmed help me 😢

Did you have to get your tcm program?

My TCM toy 2009 gmc sierra 1500 is inside the transmission

Where did you buy your TCM?

I can’t locate my tcm on my 07 Escalade

Howdy, i have an automatic 07 5.3l 4×4 silverado new style and i have had a new transmission in for a few years. Now I have several codes being thrown but in regards to symptoms the truck selects all gears on dash (d,1,2,3,r) but has little to no power in 1st when in main drive. When i select 1st then 2nd then 3rd it will drive and if i try driving in the regular drive from a start it eventually starts shifting it just clunks shen it shifts but no grinding or slipping sounds. Some of the seemingly transmission based codes i have are p0977 and p0700 there are bunch of other codes though. Any idea or similar sympton experience? Thanks everyone stay blessed!

P0700 it's the same ?

U only temporarily repaired it! Run a ground wire to both TCM & PCM from battery preferably

I'm having same symptoms with no speedometer. Where did you end up ordering it from? Still going strong?

Who did you order your Tcm from ?

Then it’s probably your neutral safety switch

Did your transmission fuse blow?

Lol I use a milk crate lol

You don’t have to flash them to vin.

Name of song

Is that a TCM or an ECM?

This is off topic but you sound just like Jason aldean😂

300,000

And my battery died quick for some reason

I made biggest mistake buying one of these I see all this advice of these pieces of crap I have a brand new transmission 4000$ it shudders shakes don't shift right consumes oil and coolant with a rebuilt motor less than 1000 miles total crap stay away it's literally the worst vehicle I've ever owned. I'm not even changing the oil I'm done ill drive it till it dies and takes the plates off and I have no transmission light