It's been so long since I used this grease, but I could have sworn that the GM dealer sold me dielectric grease for my module.
Never had one fail using dielectric grease either.
I would say call a GM dealer & ask what they use for those modules.
It does make sense to use a heat transfer compound, I just think GM used dielectric grease.
If you look on other forums a lot of people recommend dielectric grease & or heat transfer compound.
MBHD
