Gearbox GM 9T65

The General Motors 9T65 9-speed automatic transmission (designated M3V and M3W) has been assembled since 2017 and is installed in popular models such as the Buick Enclave, Chevrolet Traverse, Cadillac XT5 and XT6. This automatic transmission is designed for transversely mounted V6 engines, such as the LGX or LFY.

Specifications

Type automatic transmission
Number of gears 9
Type of drive front / all wheel
Engine volume, l up to 3.6
Torque output, Nm up to 480
Recommended oil DEXRON VI
Oil capacity, liter 9.5
Partial replacement, liter 5.7
Maintenance every 60 000 km
Gearbox lifespan, km ~250 000 km
Weight, kg 112

Gear ratios GM 9T65

Using the 2018 Chevrolet Traverse with a 3.6-liter engine as an example:

Main 3.49
1st 4.689
2nd 3.306
3rd 3.012
4th 2.446
5th 1.923
6th 1.446
7th 1.000
8th 0.747
9th 0.617
Reverse 2.960

Using

The transmission was installed on:

  • Buick Enclave 2 (C1XX) in 2017 – …;
  • Cadillac XT5 I (C1UL) in 2019 – …;
  • Cadillac XT6 I (C1TL) in 2019 – …;
  • Chevrolet Blazer 3 (C1XX) in 2018 – …;
  • Chevrolet Traverse 2 (C1XX) in 2017 – …;
  • GMC Acadia 2 (C1XX) in 2019 – …

Disadvantages of the GM 9T65 gearbox

  • In the early years, this automatic transmission had many problems, but most have already been fixed;
  • Dealers updated the software, changed the oil, valve bodies, or torque converters;
  • It’s important to note that the solenoids are very sensitive to lubricant purity;
  • The automatic transmission’s parking mechanism often fails due to a jammed valve;
  • Some also had to replace a defective shift lever under warranty.
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