Traction Control/Electronic Stability Control Chevrolet Silverado 1500
System Operation.
The vehicle has a Traction Control System (TCS) and StabiliTrak/ Electronic Stability Control (ESC) system. These systems help limit wheel spin and assist the driver in maintaining control, especially on slippery road conditions.
TCS activates if it senses any of the drive wheels are spinning or beginning to lose traction. When this happens, TCS applies the brakes to the spinning wheels and reduces engine power to limit wheel spin.
StabiliTrak/ESC activates when the vehicle senses a difference between the intended path and the direction the vehicle is actually traveling.
StabiliTrak/ESC selectively applies braking pressure to any one of the vehicle wheel brakes to assist the driver in keeping the vehicle on the intended path. Trailer Sway Control (TSC) is also on automatically when the vehicle is started. See [linkin] Trailer Sway Control (TSC) 0 304.
If cruise control is being used and traction control or StabiliTrak/ESC begins to limit wheel spin, cruise control will disengage. Cruise control may be turned back on when road conditions allow.
Both systems come on automatically when the vehicle is started and begins to move. The systems may be heard or felt while they are operating or while performing diagnostic checks. This is normal and does not mean there is a problem with the vehicle.
It is recommended to leave both systems on for normal driving conditions, but it may be necessary to turn TCS off if the vehicle gets stuck in sand, mud, ice, or snow.
See [linkin] If the Vehicle Is Stuck 0 196 and “Turning the Systems Off and On” later in this section.
When the transfer case (if equipped) is in Four-Wheel Drive Low, the stability system is automatically disabled, 
comes on, and the appropriate message will appear on the Driver Information Center (DIC).
Both traction control and StabiliTrak/ ESC are automatically disabled in this condition.
The indicator light for both systems is in the instrument cluster. This light will: . Flash when TCS is limiting wheel spin.
• Flash when StabiliTrak/ESC is activated.
• Turn on and stay on when either system is not working.
If either system fails to turn on or to activate, a message displays in the Driver Information Center (DIC), and 
comes on and stays on to indicate that the system is inactive and is not assisting the driver in maintaining control. The vehicle is safe to drive, but driving should be adjusted accordingly.
If comes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine.
Drive the vehicle. If comes on and stays on, the vehicle may need more time to diagnose the problem.
If the condition persists, see [linkin] your dealer.
Turning the Systems Off and On.
The button for TCS and StabiliTrak/ ESC is on the center stack..
Caution.
Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle driveline could be damaged.
To turn off only TCS, press and release . The traction off light 
displays in the instrument cluster.
The appropriate message will display in the DIC. To turn TCS on again, press and release . The traction off light displayed in the instrument cluster will turn off.
If TCS is limiting wheel spin when is pressed, the system will not turn off until the wheels stop spinning.
To turn off both TCS and StabiliTrak/ ESC, press and hold until the traction off light and the StabiliTrak/ESC OFF light g come on and stay on in the instrument cluster, then release. The appropriate message will display in the DIC.
To turn TCS and StabiliTrak/ESC on again, press and release . The traction off light and the StabiliTrak/ESC OFF light in the instrument cluster turn off.
StabiliTrak/ESC will automatically turn on if the vehicle exceeds 56 km/h (35 mph). Traction control will remain off.
The vehicle has a Trailer Sway Control (TSC) feature and a Hill Start Assist (HSA) feature. See [linkin] Trailer Sway Control (TSC) 0 304 or Hill Start Assist (HSA) 0 231.
