Electronic Range Select (ERS) Mode
ERS mode allows you to choose the top-gear limit of the transmission and the vehicle's speed while driving downhill or towing a trailer.
To use this feature:

See Manual Mode on page 9-23.
Climate Controls
Vehicle FeaturesChevrolet Captiva Owners Manual > Vehicle Checks: Automatic Transmission Fluid
It is not necessary to check the transmission fluid level.
A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to the dealer and have it repaired as soon as possible.
Change the fluid and filter at the intervals listed in Maintenance Schedule on page 1 ...