I'm did Tranny Fluid when I got the car at 60K and every 30K since.
I recently started sweatin' the Juice-box on her, though.
Eng Code PO1811
I don't know what to do, now!
All other fluids are changed at least annually.
Every time I do Brakes, ... I push new Brake Fluid through the system.
Engine Oil: Every 5,000
Power Steering: Annually
Coolant: Annually. Flushed-out DexCool @ 60K -- Got New Lower Intake Manifold Gaskets -- been running 60/40 Prestone in it.
Here she is, today:
Nov. 11th, 2016