2007 Chevrolet Impala Owner's Manual - Page 203

SERVICE BATTERY CHARGING SYSTEM This message displays when there is a problem with the generator and battery charging systems. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Stop and turn off the vehicle as soon as it is safe to do so. Have the electrical system checked by your dealer immediately. SERVICE POWER STEERING This message displays when a problem is detected with the power steering system. When this message is displayed, you may notice that the effort required to steer the vehicle increases or feels heavier, but you will still be able to steer the vehicle. Have your vehicle serviced by your dealer immediately. SERVICE THEFT SYSTEM This message displays when there is a problem with the theft-deterrent system programmed in the key. A fault has been detected in the system which means that the system is disabled and it is not protecting the vehicle. The vehicle usually restarts; however, you may want to take the vehicle to your dealer before turning off the engine. See PASS-Key® III+ Operation on page 109 for more information. SERVICE BRAKE SYSTEM This message displays when service is required on the brake system. Have the brake system serviced by your dealer as soon as possible. The brake system warning light also appears on the instrument panel cluster when this message appears on the DIC. See Brake System Warning Light on page 179. 203