2011 Chevrolet Volt Owner's Manual - Page 340

9-38 Driving and Operating If d comes on and stays on, reset the system: 1. Stop the vehicle. 2. Turn the vehicle off and wait 15 seconds. The TCS/StabiliTrak warning light will flash to indicate that the traction control system is active. If there is a problem detected, the SERVICE TRACTION CONTROL message displays in the DIC. See Ride Control System Messages on page 5‑50. When this message is displayed and d comes on and stays on, the vehicle is safe to drive but the system is not operational. 3. Start the vehicle. If d still comes on and stays on, the vehicle needs service. Adding non‐GM accessories can affect vehicle performance. See Accessories and Modifications on page 10‑4 for more information. When the vehicle is started and begins to move, the system performs several diagnostic checks to ensure there are no problems. The system may be heard or felt while it is working. This is normal and does not mean there is a problem with the vehicle. The system should initialize before the vehicle reaches 32 km/h (20 mph). In some cases, it may take approximately 3.2 km (2 mi) of driving before the system initializes. The Traction Control System may activate on dry or rough roads or under conditions such as heavy acceleration while turning or abrupt changes in output from the electric drive unit. When this happens, a reduction in acceleration may be noticed, or a noise or vibration may be heard. This is normal.