what makes you think there is one,? not in the traditional sense, no.
read the operators guide yet?,
notice that page is missing, (trans checks) there is a DTC for this.
to tell you its time, that is covered in the FSM.
its missing for a good reason, on many newer cars.
AF33-5 trans box>?
fsm quote ( only an ecerpt, not COMPLETE< READ THE BOOK.
Important: Routine inspection of the transaxle fluid is not required.
Transaxle fluid inspection is only required if there is a symptom indicating a concern with the fluid.
- Park the vehicle on a flat level surface.
- Operate the vehicle in order for the transmission fluid temperature to reach the normal operating range. Specification
Transaxle normal temperature: 60-70 degrees C (140-158 degrees F)
- With the engine at idle, manual shift through all transaxle ranges and return to the PARK position. Leave the engine idling.
- Clean any dirt or debris away from the area of the transaxle fluid level indicator.
- Remove the transaxle fluid level indicator bolt (1) from the transaxle.
- Remove the transaxle fluid level indicator (2).
- Wipe away any transaxle fluid from the indicator.
- Insert the indicator into the transaxle until fully seated.
- Remove the indicator and inspect the level and the condition of the oil on the indicator:
- Transmission fluid level at normal operating temperature (1)
- Transmission fluid level if cold (2)
- If the fluid level is incorrect inspect for the following conditions:
- Fluid below level, inspect for a leak.
- Fluid above level, inspect for contamination of the fluid.
Important: The tranaxle uses T-IV fluid, GM P/N 88900925 (Canadian P/N 22689186). The fluid is normally red in color. The oil may darken in color with more miles on a vehicle.