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What is General Motors Procedure to Service Their 10 speed Auto Transmission?

Bucketlist

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I have a 2020 Escalade with a 6.2 / 10 speed auto transmission. I currently have 53,000 miles and want to have a complete Fluid / filter service performed that meets or exceeds GM‘s recommended service procedure. Vehicle is still within both the base factory and also GM extended warranty plans. My preference is to use a GM Dealer ( Cadillac or GMC) to perform this service in order to maintain a pristine service records history in case of a future warranty claim. I have contacted both a local Orange County, Ca Cad and GMC dealer which are surprisingly describing differing service procedures. As suspected, the Owner’s manual is void of many useful specs and data that an engaged owner would like to know.

I am hoping that there is a GM Line Technician reading this post that can respond and tell me what the exact GM Recommended Service Procedures are. And where could I locate the EXACT GM service procedures?


MY QUESTIONS ON WHAT IS PERFORMED USING A GM APPROVED TRANSMISSION SERVICE PROCEDURE:
1- Do they lower the exhaust crossover pipe under the trans pan to allow the pan to be completely dropped ( not just tilted) from undercarriage and properly cleaned. This should necessitate new installing new exhaust gaskets.

2- Do they replace or just reuse pan gasket?

3- Do they install new trans filter?

4- Do they pump out the old fluid inside the torque Converter and also the line set to and from the trans cooler located at the front of vehicle. If so, how is this done by passing the trans fluid thermostat Block?
 

DarkHorseRacing

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All I know is try to get the dealer to use their Dexos equivalent to Mobil 1 Synthetic LV ATF HP. I noticed the transmission wasnt so wonky with this fluid after I had them do a fluid exchange.

Now do they do the rest of the stuff you listed? I'm not looking at an old invoice for it, but I do recall they replace the pan gasket.
 

SoCalDave

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I'm pretty sure all GM trannies are good for 100,000 mile service. I changed the fluid in my 2011 Vee at 98,000 miles and it looked like new. I did drop the pan and installed new filter and pan gasket. Also installed a aftermarket dipstick to make it easier to refill and monitor fluid level.
Not sure how they would drain the torque converter or cooling lines.
Why the concern to change it out now if not required by the manufacturer?

Edit: I stand corrected. Manufacturer recommends fluid/filter change at 45k miles and again at 135k miles.

 

DarkHorseRacing

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Well the best part about GMs 8 and 10 speed trans for the 1500 platform is there is no dipstick. You can’t check it or fill it if you tried.

Being as I tow heavy with my Yukon I have them do the trans service about once a couple or three years. I figure it’s cheaper than a new trans.
 

Bucketlist

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1- All GM Dealer Service Depts should always install the GM recommended fluids. Some may install Customer specified alternates as long as it meets the specified fluid specs.

2- i always perform most recommended services earlier than the manufacturer mileage recommendations. The Manufacturers ONLY care that the vehicle gets thru the warranty period. After all their ultimate goal is to sell you a new car. I very much believe that more frequent service intervals can and do extend the service life of vehicle components. You are correct that the manual recommends 47,500 miles for trans. So I am overdue. and towing a boat in the desert is an early death to many transmissions
 

RiverCruiser

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I have a 2020 Escalade with a 6.2 / 10 speed auto transmission. I currently have 53,000 miles and want to have a complete Fluid / filter service performed that meets or exceeds GM‘s recommended service procedure. Vehicle is still within both the base factory and also GM extended warranty plans. My preference is to use a GM Dealer ( Cadillac or GMC) to perform this service in order to maintain a pristine service records history in case of a future warranty claim. I have contacted both a local Orange County, Ca Cad and GMC dealer which are surprisingly describing differing service procedures. As suspected, the Owner’s manual is void of many useful specs and data that an engaged owner would like to know.

I am hoping that there is a GM Line Technician reading this post that can respond and tell me what the exact GM Recommended Service Procedures are. And where could I locate the EXACT GM service procedures?


MY QUESTIONS ON WHAT IS PERFORMED USING A GM APPROVED TRANSMISSION SERVICE PROCEDURE:
1- Do they lower the exhaust crossover pipe under the trans pan to allow the pan to be completely dropped ( not just tilted) from undercarriage and properly cleaned. This should necessitate new installing new exhaust gaskets.

2- Do they replace or just reuse pan gasket?

3- Do they install new trans filter?

4- Do they pump out the old fluid inside the torque Converter and also the line set to and from the trans cooler located at the front of vehicle. If so, how is this done by passing the trans fluid thermostat Block?
I will send this to my BIL who is a Cadillac tech and see if he answers.
 

Flying_Lavey

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Im not too sure how the 10-speed pan is relative to the 6 and 8, but I know if was recommended to remove the crossover whenever dropping the trans pan, but it wasn't 100% necessary. Also the older engines had a bell and socket connection at the manifolds that don't take a gasket. If it has to be dropped, that would be the most likely place to break it free to get the room to drop the pan out.
 

Deckin Around

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Went to do a tranny flush myself on a 10speed and glad I checked before I drained the pan because you can’t even fill that fucking transmission without a pump tool.
On that same transmission 45k miles Chevy just replaced the complete valve body, which is all the solenoids, they are no longer individual like the old ones. I do know the exhaust had to come off because the tech didn’t put a seal or a clamp on correct because the truck threw an engine code and had to be sent over to the engine guys at the dealer after the transmission guy test drove it. fucking rookies.
 

RiverCruiser

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His response:
Depends if it’s a flush service or just a drop the pan and filter service. A flush changes all the fluid but a pan and filter only replaces some of the fluid.
You can get the pan out without dropping the exhaust and the gasket is reusable
 

81Sprint

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My recent visit to the Chevy dealer on my Silverado 1500 3.0 with the 10 speed, after a bad thermal coupler and cracked tranny cooler line, I asked what the service interval was for the tranny and was told recommended at 30k miles. Just an FYI.
 

Bajap1

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I have a 2020 Escalade with a 6.2 / 10 speed auto transmission. I currently have 53,000 miles and want to have a complete Fluid / filter service performed that meets or exceeds GM‘s recommended service procedure. Vehicle is still within both the base factory and also GM extended warranty plans. My preference is to use a GM Dealer ( Cadillac or GMC) to perform this service in order to maintain a pristine service records history in case of a future warranty claim. I have contacted both a local Orange County, Ca Cad and GMC dealer which are surprisingly describing differing service procedures. As suspected, the Owner’s manual is void of many useful specs and data that an engaged owner would like to know.

I am hoping that there is a GM Line Technician reading this post that can respond and tell me what the exact GM Recommended Service Procedures are. And where could I locate the EXACT GM service procedures?


MY QUESTIONS ON WHAT IS PERFORMED USING A GM APPROVED TRANSMISSION SERVICE PROCEDURE:
1- Do they lower the exhaust crossover pipe under the trans pan to allow the pan to be completely dropped ( not just tilted) from undercarriage and properly cleaned. This should necessitate new installing new exhaust gaskets.

2- Do they replace or just reuse pan gasket?

3- Do they install new trans filter?

4- Do they pump out the old fluid inside the torque Converter and also the line set to and from the trans cooler located at the front of vehicle. If so, how is this done by passing the trans fluid thermostat Block?
They simply swap it out for a new one...🤣
 

Eliminator21vdrive

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Both Chrysler and Toyota did fluid exchanges by taping into the cooler lines and did not replace filters. Not saying that is the best way just reporting.
 
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