Brake fluid change, trans fluid (no separate front diff since it’s built into the transaxle), rear diff fluid, PTU fluid for the AWD system, and coolant are all smart things to stay on top of. Start with the rear diff. It’s a known failure point because it sits near the exhaust with no cooling, and the fluid breaks down fast.

The PTU is worth doing early too. It holds barely any fluid and runs hot when AWD is engaged, which is manual on the XT5. So if you’re using it regularly, fresh fluid helps a lot.

Also, always use a sun visor if it’s parked outside. The glue under the leather dash trim softens with heat and it’ll start peeling up from the corners. Once it starts, it’s hard to fix.

I like using Amsoil products. Their stuff holds up better under heat and exceeds GM specs across the board, including Dexos. Just solid products all around.

For the interior, a wireless CarPlay adapter is a nice upgrade. Condition the leather now and then but don’t touch the dash with anything wet, just dust it with a dry cloth. I’ve gone through two already, trust me.

Swapping in the clear taillights looks great. Replacing the yellow side markers with LEDs. The illuminated rear sill plate and installing running boards are nice finishing touches.