Lookup Cadillac Transmission by Model, Year
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Need to check your Cadillac’s transmission? Below is a list of Cadillac transmissions by year, model, and engine size. You can also look up Cadillac transmission by VIN using the Decoder Tool.
At a Glance
- Why the exact code matters: two Cadillac of the same year and engine can leave the factory with different transmissions. Fluid spec, filter, solenoids and valve body all differ between them, and the parts are not interchangeable.
- Where to find it on the car: the transmission case tag, the RPO code sticker in the glovebox or trunk, and the VIN plate. The RPO code (for example MYB, M5U, MHN) is the most reliable identifier on a GM vehicle.
- Fastest method: read the transmission identification directly from the transmission control module with a scan tool. That removes the guesswork entirely.
- The expensive mistake: GM units use Dexron VI on most conventional automatics, but the 8L and 9T families have their own specified fluids and Dexron VI is not a universal answer across the range. The 8L units in particular have a known shudder issue tied to fluid.
- Typical fluid service cost: $200 to $450 at an independent shop, $350 to $650 at a dealer.
| Model | Year | Type of Transmission | Engine | Transmission Model |
| ATS | 2012 to 2016 | 6 SP RWD | L4 2.0L V6 3.6L | 6L45/6L50 |
| ATS | 2015 to 2016 | 8 SP RWD | L4 2.0L 2.5L | 8L45 |
| ATS | 2015 to 2016 | 8 SP RWD | V6 3.0L | 8L90 |
| BLS | 2006 to 2008 | 5 SP FWD | L4 2.0L | AW 55-50 SN |
| BLS | 2006 to 2009 | 6 SP FWD | L4 1.9L V6 2.8L | AF40-6 |
| CT6 | 2016 to 2018 | 8 SP R/4WD | V6 3.0L | 8L90 |
| CT6 | 2016 to 2018 | EVT RWD | L4 2.0L | X26R |
| CT6 | 2016 to 2018 | 8 SP R/4WD | L4 2.0L V6 3.6L | 8L45 |
| CT6 | 2018 | 10 SP R/4WD | V6 3.0L | 10L80 |
| CT6 | 2018 | 10 SP R/4WD | L4 2.0L V6 3.6L | 10L60 |
| CT6 | 2018 | 10 SP 4WD | V8 4.2L | 10L90 |
| CTS | 2001 to 2007 | 5 SP RWD | V6 2.6/2.8/3.2L | 5L40-E |
| CTS | 2008 to 2014 | 6 SP R/AWD | L4 2.0L V6 2.8/3.0L | 6L45/50 |
| CTS | 2007 to 2014 | 6 SP R/AWD | V8 6.0L | 6L80 |
| CTS | 2010 to 2014 | 6 SP R/AWD | V8 6.2L | 6L90 |
| CTS | 2013 to 2014 | 8 SP RWD | V6 3.6L | TL80-SN |
| CTS | 2015 to 2016 | 8 SP R/4WD | L4 2.0L V6 3.0/3.8L | 8L45 |
| CTS | 2015 to 2016 | 8 SP 4WD | V6 3.0L | 8L90 |
| CTS SPORT WAGON | 2009 to 2014 | 6 SP R/4WD | V6 3.0/3.6L | 6L45/6L50 |
| CTS SPORT WAGON | 2010 to 2014 | 6 SP RWD | V8 6.2L | 6L90 |
| DTS | 2005 to 2011 | 4 SP FWD | V8 4.6L | 4T80-E |
| CATERA | 1998 to 2001 | 4 SP RWD | V6 3.0L | 4L30E |
| CONCOURS/SEVILLE | 1995 | 4 SP FWD | V8 4.6L | 4T80-E |
| DEVILLE | 1995 | 4 SP FWD | V8 4.9L | 4T60-E |
| DEVILLE/SEVILLE/CONCOURS | 1996 to 2005 | 4 SP FWD | V8 4.6L | 4T80-E |
| E-CUV | 2012 ED | 6 SP FWD | V6 3.6L | 6T75 |
| ELDORADO | 1995 to 2003 | 4 SP FWD | V8 4.6L | 4T80-E |
| ELR | 2016 | EVT FWD | L4 1.54L | X40F |
| ELR | 2013 to 2016 | EVT FWD | L4 1.4L | X30F |
| ESCALADE/EXT/ESV | 1999 to 2006 | 4 SP RWD/AWD | V8 5.3L/5.7L/6.0L | 4L60/4L65-E |
| ESCALADE/EXT/ESV | 2005 to 2012 | 6 SP RWD/AWD | V8 6.2L | 6L80 |
| ESCALADE HYBRID | 2007 to 2012 | CVT RWD/4X4 | V8 6.0L | AHS-T |
| ESCALADE | 2015 to 2018 | 8 SP R/4WD | V8 6.2L | 8L90 |
| FLEETWOOD/BROUGHAM/LIMO | 1995 to 1996 | 4 SP RWD | V8 5.7L | 4L60-E |
| LIVERY/HEARSE/LIMO | 1997 to 2001 | 4 SP FWD | V8 4.6L | 4T80-E |
| SRX | 2003 to 2010 | 5 SP RWD/AWD | V6 3.6L V8 4.6L | 5L40-E/5L50-E |
| SRX | 2006 to 2009 | 6 SP RWD/AWD | V8 4.6L | 6L50 |
| SRX | 2009 to 2012 | 6 SP F/AWD | V6 2.8L | AF40-6 |
| SRX | 2009 to 2016 | 6 SP F/AWD | V6 3.0L | 6T70 |
| SRX | 2004 to 2009 | 5 SP R/AWD | V6 3.0L | 5L40-E |
| SRX | 2016 | 8 SP F/4WD | L4 2.0L V6 3.6L | AWF8F35 |
| STS | 2004 to 2009 | 5 SP RWD/AWD | V6 2.8L V8 4.6L | 5L40-E/5L50-E |
| STS | 2005 to 2011 | 6 SP RWD/AWD | V8 4.4L | 6L80 |
| STS | 2006 to 2013 | 6 SP 4R/4WD | L4 2.0L V6 3.0/3.6L V8 4.6L | 6L45/50 |
| STS | 2006 to 2012 | 6 SP RWD/AWD | V6 3.0/3.6L V8 4.6L | 6L50 |
| STS-V | 2006 to 2007 | 6 SP RWD | V8 4.4L | 6L80 |
| XTS | 2012 ED | 6 SP AWD | V6 3.6L | 6T70 |
| XLR | 2005 to 2009 | 5 SP RWD | V8 4.6L | 5L50-E |
| XLR | 2006 to 2009 | 6 SP RWD | V8 4.6L | 6L50 |
| XLR/XLR-V | 2005 to 2009 | 6 SP RWD | V8 4.4L/4.6L | 6L80 |
| XT4 | 2018 | 9 SP F/4WD | V6 3.6L | 9T65 |
| XT4 | 2018 | 9 SP F/4WD | L4 2.0L | 9T50 |
| XT4 | 2018 | EVT F/4WD | L4 2.0L | X39F |
| XT5 | 2016 to 2018 | 8 SP F/4WD | L4 2.0L V6 3.6L | TG81LS |
| XT5 | 2017 to 2018 | EVT 4WD | L4 2.0L | X39F |
| XT5 | 2017 to 2018 | 9 SP L4 2.0L | L4 2.0L | 9T60 |
| XTS | 2012 to 2014 | 6 SP AWD | L4 2.0L V6 3.6L | 6T70 |
| XTS | 2013 to 2016 | 6 SP F/4WD | V6 3.6L | 6T80 |
You can also look up Cadillac transmission by VIN using the Decoder Tool.
What This Repair Costs
| Repair | Typical total cost |
|---|---|
| Fluid and filter service, DIY | $70 to $180 |
| Fluid and filter service, independent shop | $180 to $400 |
| Fluid and filter service, dealer | $300 to $650 |
| Valve body or solenoid pack | $600 to $1,800 installed |
| Rebuild or replacement | $2,500 to $5,500 |
Rough US estimates for planning, not quotes. Prices vary widely by model, parts brand and region, so get a written quote before committing.
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Buying the right parts starts with identifying the right unit. Every row above gets more expensive if the first step is a guess.
When to Stop and Hand It Over
- The unit is slipping, flaring or shuddering. Identify it, but do not expect a fluid change to cure mechanical wear.
- You find metal in the pan during a service.
- The car has no dipstick and the level must be set at a specific fluid temperature.
Reading the Transmission ID From the Car
VIN decoders and parts catalogues get this wrong often enough to cost people money, because mid year production changes are not always reflected. The car itself knows which unit it has, and the transmission control module will tell you.
The YOUCANIC UCAN-II Pro reads GM transmission control module data including the unit identification and software version, along with transmission specific fault codes that a generic OBD2 reader cannot see. If you are about to order a valve body, a solenoid pack or a filter kit, confirming the unit first is worth the few minutes it takes.
On the 8L family, check whether a transmission fluid change bulletin or a software recalibration applies to your VIN before paying for hardware. GM has issued both for shift quality complaints and that path is far cheaper than parts.
Frequently Asked Questions
How do I find which transmission my Cadillac has?
Check the tag on the transmission case or the VIN plate, use the lookup by model and year above, or have a dealer check your VIN.
What fluid does a Cadillac automatic use?
Most conventional GM automatics use Dexron VI, but the 8 speed and 9 speed families have their own specified fluids. Confirm for your exact unit.
Why does the exact transmission code matter?
Fluid, filter, solenoids and valve body differ between units, and the parts are not interchangeable.
Check these troubleshooting and repair guides for more help on your Cadillac.
