Autotrac Active (4x4) Transfer Case
The Autotrac active transfer case helps Avalanche adjust to varying road conditions. The Autotrac system features four drive modes (2HI, AUTO/4WD, 4HI and 4LO), plus a neutral setting.
- 2HI provides the most efficient driving mode.
- When engaged, AUTO/4WD detects rear-wheel slippage and automatically shifts into 4WD, as road conditions dictate.
- 4HI helps handle snow, ice, rain and most off-road conditions.
- 4LO helps handle extreme conditions such as steep hills, deep sand, mud or snow.
- Neutral allows Avalanche to be flat-towed.(1)
1 For recreational towing restrictions and availability, consult the Owner's Manual.