These lights are on the center of the instrument panel.

The vehicle ahead light comes on when a vehicle is detected ahead and a possible collision can occur.

The forward collision alert comes on when following a vehicle much too closely. The light flashes when a vehicle is being rapidly approached.
See Forward Collision Alert (FCA) System.
Lane Departure Warning (LDW) Light
Traction Off LightData Link Communications Description and Operation
Note: This is an overview of different serial data buses used by GM
devices to communicate with each others. Use Data Communication Schematics to
find out which serial data buses are configured for a specific vehicle.
Circuit Description
There are many components in a vehicle t ...
Special Tools
Illustration
Tool Number/ Description
BO-38185
J-38185
Hose Clamp Pliers
BO-42220
J-42220
Universal 12V Leak Detection Lamp
CH-37872
GE-30206952
3-02 ...
Transmission Fluid Pump, Front Differential Carrier Baffle, and Front Differential
Ring Gear Removal (6T40/45)
Transmission Fluid Pump, Front Differential Carrier Baffle, and Front
Differential Ring Gear Removal
Callout
Component Name
1
Front Differential Carrier Baffle Bolts M6 x 25 (Qty: 2)
...