Hello,
Just about all of these GM vehicles uses DEXRON III transmission fluid for Automatic transmissions.
Fluid Capacity:
Bottom Pan Removal .................... 6.9 quarts (6.5 liters)
Complete Overhaul .................... 9.5 quarts (9.0 liters)
Dry .................... 12.9 quarts (12.2 liters)
Here is a guide you might find helpful:
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
I have also included the transmission fluid checking/replacement procedure.
Let me know if you have any questions.
Thank you.
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Tuesday, July 13th, 2021 AT 7:42 PM