Got a 2020 Buick Enclave with 106,000 miles. Is this in need of a fluid replacement?

quote:

2020 Buick Enclave

The 2020 Buick Enclave uses DEXRON-VI automatic transmission fluid. A standard drain and fill requires about 5.5 quarts, while a full capacity (9T65 9-speed transmission) is approximately 10 quarts. Fluid changes are generally recommended every 90,000 miles (or every 30,000–45,000 miles under severe driving conditions)

When it comes to daily driven vehicles I always give the same advice when asked about changing the transmission fluid. Change it religiously like your change your motor oil from day 1, or don't change it all until you start to experience an issue.

Transmissions naturally create debris material over time. That stuff gets deposited in little nooks and crannys in the transmission over time. Changing the fluid you risk breaking all that loose at once and having a real issue.

Are you going to keep the vehicle for a few more years? If yes go ahead and service it, if no get an estimate on a transmission rebuild and then decide.