2009 Chevrolet HHR Owner's Manual - Page 247

To turn the system off or on, press and release the ESC/TCS button located on the instrument panel. differential could be damaged. The repairs would not be covered by the vehicle warranty. Reduce engine power and do not spin the wheel(s) excessively while these lights and this message are displayed. Notice: When traction control is turned off, or Competitive Driving Mode is active, it is possible to lose traction. If you attempt to shift with the drive wheels spinning with a loss of traction, it is possible to cause damage to the transmission. Do not attempt to shift when the drive wheels do not have traction. Damage caused by misuse of the vehicle is not covered. See the warranty book for additional information. The traction control system may activate on dry or rough roads or under conditions such as heavy acceleration while turning or abrupt upshifts/downshifts of the transmission. When this happens, a reduction in acceleration may be noticed or a noise or vibration may be heard. This is normal. If the vehicle is in cruise control while the system activates, the ESC/TCS light flashes and the cruise control automatically disengages. The cruise control can be re-engaged when road conditions allow. See Cruise Control on page 3-10. Adding non-dealer/non-retailer accessories can affect the vehicle's performance. See Accessories and Modifications on page 5-3 for more information. The DIC displays the appropriate message as described previously when the button is pressed. Traction Control Operation Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying brakes to each individual wheel (brake-traction control) as necessary. The traction control system is enabled automatically when the vehicle is started, and it will activate and flash the ESC/TCS light and display the LOW TRACTION message if it senses that either of the front wheels are spinning or beginning to lose traction while driving. For more information on the LOW TRACTION message, see Driver Information Center (DIC) on page 3-48. Notice: If the wheel(s) of one axle are allowed to spin excessively while the ESC/TCS, ABS and Brake warning lights and the SERVICE ESC and/or SERVICE TRACTION messages are displayed, the 4-11