Skip to content

Which transmission is in your GMC

Automatic transmissions fitted to 14 models of GMC: code, transmission type, engines and production years. If you are not sure which one you have, we will check it by the VIN.

Series

14 of 14 models

  • 2006-2022 GMC Acadia 3 transmissions
    Transmissions in the GMC Acadia
    YearsCodeTypeGearsEngines
    2006-2019 HMD X22F automatic 6 3.6L
    2016-2019 6T50 automatic 6 2.5L
    2019-2022 9T65 automatic 9 2.0-3.6L
  • 2003-2022 GMC Canyon 3 transmissions
    Transmissions in the GMC Canyon
    YearsCodeTypeGearsEngines
    2003-2012 4L60E GM Hydra-Matic 4L60-E automatic 4 2.8-5.3L
    2014-2022 6L50 automatic 6 2.5-3.6L
    2017-2022 8L45 automatic 8 2.0-3.6L
  • 2001-2009 GMC Envoy 1 transmission
    Transmissions in the GMC Envoy
    YearsCodeTypeGearsEngines
    2001-2009 4L60E GM Hydra-Matic 4L60-E automatic 4 4.2-5.3L
  • 2002-2006 GMC Envoy XL 1 transmission
    Transmissions in the GMC Envoy XL
    YearsCodeTypeGearsEngines
    2002-2006 4L60E GM Hydra-Matic 4L60-E automatic 4 4.2-5.3L
  • 2003-2005 GMC Envoy XUV 1 transmission
    Transmissions in the GMC Envoy XUV
    YearsCodeTypeGearsEngines
    2003-2005 4L60E GM Hydra-Matic 4L60-E automatic 4 4.2-5.3L
  • 2000-2005 GMC Jimmy/Envoy 1 transmission
    Transmissions in the GMC Jimmy/Envoy
    YearsCodeTypeGearsEngines
    2000-2005 4L60E GM Hydra-Matic 4L60-E automatic 4 4.3L
  • 2000-2005 GMC Safari 1 transmission
    Transmissions in the GMC Safari
    YearsCodeTypeGearsEngines
    2000-2005 4L60E GM Hydra-Matic 4L60-E automatic 4 4.3L
  • 2000-2022 GMC Savana 6 transmissions
    Transmissions in the GMC Savana
    YearsCodeTypeGearsEngines
    2000-2014 4L60E GM Hydra-Matic 4L60-E automatic 4 4.3-5.3L
    2000-2009 4L80E automatic 4 5.7-8.1L
    2002-2009 4L85E automatic 4 6.6L
    2002-2017 6L80 automatic 6 4.8-5.3L
    2002-2022 8L90 automatic 8 2.8-6.0L
    2009-2022 6L90 automatic 6 6.0-6.6L
  • 2000-2022 GMC Sierra 7 transmissions
    Transmissions in the GMC Sierra
    YearsCodeTypeGearsEngines
    2000-2013 4L60E GM Hydra-Matic 4L60-E automatic 4 4.3-5.7L
    2000-2007 4L80E automatic 4 5.7-7.4L
    2000-2008 LCT-1000 automatic 6 6.6-8.1L
    2006-2008 4L70E automatic 4 6.0L
    2007-2022 6L80 automatic 6 4.3-6.2L
    2014-2022 8L90 automatic 8 2.7-6.2L
    2018-2022 10L80 automatic 10 3.0-6.2L
  • 2007-2022 GMC Sierra HD 3 transmissions
    Transmissions in the GMC Sierra HD
    YearsCodeTypeGearsEngines
    2007-2022 6L90 automatic 6 6.0-6.6L
    2007-2019 LCT-1000 automatic 6 6.6-8.1L
    2019-2022 AB1V (10L 1000) automatic 10 6.6L
  • 2000-2004 GMC Sonoma 1 transmission
    Transmissions in the GMC Sonoma
    YearsCodeTypeGearsEngines
    2000-2004 4L60E GM Hydra-Matic 4L60-E automatic 4 2.2-4.3L
  • 2009-2022 GMC Terrain 4 transmissions
    Transmissions in the GMC Terrain
    YearsCodeTypeGearsEngines
    2009-2017 6T70 automatic 6 3.0-3.6L
    2011-2019 6T45 automatic 6 1.6-2.4L
    2017-2022 9T45 automatic 9 1.5L
    2017-2020 9T50 automatic 9 2.0L
  • 2000-2022 GMC Yukon 5 transmissions
    Transmissions in the GMC Yukon
    YearsCodeTypeGearsEngines
    2000-2008 4L60E GM Hydra-Matic 4L60-E automatic 4 4.8-5.3L
    2000-2005 4L65E automatic 4 6.0L
    2005-2020 6L80 automatic 6 5.3-6.2L
    2016-2017 8L90 automatic 8 6.2L
    2017-2022 10L80 automatic 10 3.0-6.2L
  • 2000-2022 GMC Yukon XL 8 transmissions
    Transmissions in the GMC Yukon XL
    YearsCodeTypeGearsEngines
    2000-2008 4L60E GM Hydra-Matic 4L60-E automatic 4 5.3L
    2000-2008 4L80E automatic 4 5.3-6.0L
    2000-2006 4L85E automatic 4 8.1L
    2006-2008 4L70E automatic 4 6.0L
    2006-2020 6L80 automatic 6 5.3-6.2L
    2006-2013 6L90 automatic 6 6.0L
    2016-2022 8L90 automatic 8 2.7-6.2L
    2017-2022 10L80 automatic 10 3.0-6.2L

Not sure which one your car has?

Provide the VIN when booking an appointment, and before you arrive we will check which transmission you have in your car and if we repair it.

Codes

The transmissions we see most often in GMC vehicles

Below are the codes from this list, ordered from the most common. These are the ones to look for in the registration document or on the transmission plate when you order parts.

  • 4L60E 11 models
  • 6L80 4 models
  • 8L90 4 models
  • 4L80E 3 models
  • 6L90 3 models
  • 10L80 3 models
  • 4L85E 2 models
  • LCT-1000 2 models
  • 4L70E 2 models
  • HMD X22F 1 model
  • 6T50 1 model
  • 9T65 1 model
  • 6L50 1 model
  • 8L45 1 model
  • AB1V (10L 1000) 1 model
  • 6T70 1 model
  • 6T45 1 model
  • 9T45 1 model
  • 9T50 1 model
  • 4L65E 1 model
Trade names

What the transmission names mean in GMC

The list above shows the code a mechanic reads: the code from the plate, the parts catalogue number or the design symbol. In a search engine people type something else: the transmission model name or the showroom name. These describe the same transmission. Below are the ones that appear in this list, together with the clutch type, because that decides how the repair runs and what it costs.

Transmission model Trade name Gears Clutch Torque Layout
4L60E Hydra-Matic 4 torque converter longitudinal

Maximum torque is the highest torque the transmission can safely handle without risk of damage. It is the factory figure for the transmission model, not for one particular car. Some codes from the plate have no publicly confirmed model assignment, and those stay in the table without a second name. The VIN number is what finally decides, which we check before you arrive.

Gearbox trouble in your GMC? Write to us

Describe the symptoms: at what speed they appear, with the engine cold or warm, whether there is a jolt when shifting, a delay after engaging a gear, or a message on the dashboard. Add the model year, the engine and the VIN. We will write back with what that suggests and which check makes sense. Whether we take the repair is decided by the diagnostic check.

ASB newsletter

Thank you

Book a diagnostic check

Fill in the contact form below. If you would rather call, here is the list of phones to individual departments. We call back during working hours, usually the same day. Fields marked with an asterisk are required.

How do you want to fill this in?

Which code to look for on the registration document

On the last page of the vehicle registration document there is a dense square. That is the Aztec code.

The last page of the vehicle registration document. The Aztec code is at the bottom, outlined in red.

Your vehicle

Give us the VIN, or the year and engine. Either one is enough.

We call back during working hours, usually the same day.

Scan your registration document

Point camera at Aztec code (a square with a dense pattern) on the vehicle registration document. The photo stays on your phone; we only fill in the make, model, year, engine and VIN.

Starting the camera…