2010 Cadillac CTS Owner's Manual - Page 260

8-20 Driving and Operating If the vehicle has the keyless access system, your foot must be on the brake pedal to start the engine. To rotate the ignition control knob, put your foot on the brake pedal and turn the ignition control knob to the START position. If the ignition control knob does not turn, try pushing the knob in and turning again. When the engine begins cranking, let go of the ignition control knob, it will return to the ON/ RUN position. If the transmitter is not in the vehicle or something is interfering with the transmitter, the Driver Information Center (DIC) will display Electronic Key Not Detected. See Driver Information Center (DIC) on page 4‑31 for more information. If the battery in the keyless access transmitter needs replacing, the DIC displays Replace Battery In Remote Key. The vehicle can still be driven. See "Battery Replacement" under Remote Keyless Entry (RKE) System Operation (Key Access) on page 1‑5 or Remote Keyless Entry (RKE) System Operation (Keyless Access) on page 1‑7 for more information. Notice: Do not try to shift to P (Park) if the vehicle is moving. If you do, you could damage the transmission. Shift to P (Park) only when the vehicle is stopped. Manual Transmission The shift lever should be in neutral position and the parking brake engaged. Hold the clutch pedal down to the floor and start the engine. The vehicle will not start if the clutch pedal is not all the way down. Power to the windows or sunroof will work up to 10 minutes or until any door is opened. For an additional 10 minutes of operation, close all the doors and turn the key to ON/RUN and then back to LOCK/OFF. Starting the Engine Place the transmission in the proper gear. If the vehicle has the keyless access system, the keyless access transmitter must be authenticated in order for the ignition control knob to turn. The transmitter can be authenticated either by putting your foot on the brake pedal or by pushing the ignition control knob in. Automatic Transmission Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart the engine when the vehicle is already moving, use N (Neutral) only.