2008 Cadillac STS Owner's Manual - Page 246

SERVICE STEERING SYS (System) Your vehicle has a speed variable assist steering system. Your All-Wheel Drive (AWD) vehicle may have the Active Steering with Enhanced StabiliTrak® option. See "Active Steering" under Steering on page 4-13. This message displays if a problem is detected with the speed variable assist steering system or the Active 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. See Steering on page 4-13 for more information. Have the steering system inspected by your dealer/retailer as soon as possible. If the SERVICE STEERING SYS message appears because the Active Steering system needs service, normal power steering is still operational. However, compared to Active Steering, normal power steering requires a larger degree of steering wheel input at low vehicle speeds and a smaller degree of steering wheel input at high vehicle speeds. The center position of the steering wheel may be different. You may continue to drive your vehicle with normal power steering, but have the steering system inspected by your dealer/retailer as soon as possible. If the Active Steering system needs service, the system may be operating in the Stability Secure Mode and the STABILITY SECURE MODE message will display. See Enhanced StabiliTrak® on page 4-9. When certain steering faults are present, the vehicle speed may be limited. If vehicle speed is limited, the SPEED LIMITED TO XXX message will display. See "Active Steering" under Steering on page 4-13. SERVICE SUSPENSION SYS (System) This message displays when the suspension system is not operating properly. Have your vehicle serviced by your dealer/retailer. If your All-Wheel Drive (AWD) vehicle has the Active Steering with Enhanced StabiliTrak® option and the suspension system needs service, the Enhanced StabiliTrak® system may be operating in the Stability Secure Mode and the STABILITY SECURE MODE message will display. See Enhanced StabiliTrak® on page 4-9. 3-92