Level Check at Normal Operation Temperature

Stop vehicle and place it level.
Apply parking brake and place chocks against wheels.
With selector at P position, start engine.
Warm up engine till fluid temperature reaches normal operating temperature (70 - 80 °C/158 - 176 °F). As a guide to check fluid temperature, warm up engine till engine coolant temperature meter (1) indicates up to 2nd or 3rd segment from lowest segment as shown in figure.

Fig 1: Identifying Engine Coolant Temperature Meter
Courtesy of SUZUKI OF AMERICA CORP.
Keep engine idling and shift selector slowly to L and back to P position.
With engine idling, pull out fluid level gauge, wipe it off with a clean cloth and put it back into place.

Fig 2: Moving Shift Selector
Courtesy of SUZUKI OF AMERICA CORP.
Pull out fluid level gauge (1) again and check fluid level indicated on it. The lowest fluid level should be between FULL HOT and LOW HOT. If it is below LOW HOT, add an equivalent of DEXRON®-III up to FULL HOT.

Automatic transaxle fluid

An equivalent of DEXRON®-III

NOTE:

Do not race engine while checking fluid level, even after the engine start.
Do not overfill. Overfilling can cause foaming and loss of fluid through breather. Then slippage and transaxle failure can result.
Bringing the level from LOW HOT to FULL HOT requires 0.4 liters (0.85/0.70 US/Imp pt.).
If vehicle was driven under high load such as pulling a trailer, fluid level should be checked about half an hour after it is stopped.

Fig 3: Identifying Fluid Level Marks
Courtesy of SUZUKI OF AMERICA CORP.