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 Service & Repair Manual > Electrical: Starter, Replace
1.
Disconnect battery ground cable.
2.
Remove power brake booster auxiliary
pump, as follows:
a.
With engine OFF, apply and release
brake pedal several times until brake pedal becomes firm to ...