Manual Mode

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.

The vehicle has an electronic shift position indicator within the instrument panel cluster. When using the ERS mode a number will display next to the L, indicating the current gear that has been selected.

To use this feature:

1. Move the shift lever to L (Low).

2. Press the plus/minus button located on the shift lever, to increase or decrease the gear range available.

When you shift from D (Drive) to L (Low), the transmission will shift to a pre-determined lower gear range.

The highest gear available for this pre-determined range is displayed next to the L in the DIC. See Driver Information Center (DIC) (Without DIC Buttons) on page 5‑30 or Driver Information Center (DIC) (With DIC Buttons) on page 5‑25 for more information. The number displayed in the DIC is the highest gear that the transmission will be allowed to operate in. This means that all gears below that number are available. For example, when 4 (Fourth) is shown next to the L, 1 (First) through 4 (Fourth) gears are automatically shifted by the vehicle. The transmission will not shift into 5 (Fifth) until the + (Plus) button is used or you shift back into D (Drive).

While in L (Low), the transmission will prevent shifting to a lower gear range if the engine speed is too high. You have a brief period of time to slow the vehicle. If vehicle speed is not reduced within the time allowed, the lower gear range shift will not be completed. You must further slow the vehicle, then press the − (Minus) button to the desired lower gear range.

Automatic Engine Grade Braking is not available when the ERS is active. It is available in D (Drive) for both normal and Tow/Haul mode.

While using the ERS, cruise control and the Tow/Haul mode can be used. See Tow/Haul Mode following.

    See also:

    Folding the Seatback
    Notice: Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the safety belts and return them to their normal stowed position befo ...

    Vehicle Overview
    Though gas mileage ratings for GM's full-size SUVs are impressive among their competitive set, they aren't likely to bring smiles to anyone at the pump; their combined ratings still linger in the ...

    Inserting a Disc
    Insert a disc partway into either slot, label side up. The player pulls it in and the disc should begin playing. (Loading a disc into the system, depending on media type and format, ranges from 5 to ...