2006 Cadillac CTS Owner's Manual - Page 178

Tire Pressure Warning Message When you see this flashing symbol, one or more of the vehicle's tires is either under or over-inflated. One-to-Four Shift Message If equipped, this message indicates that you can only shift from FIRST (1) to FOURTH (4) instead of FIRST (1) to SECOND (2). To acknowledge this warning, press either button on the outboard switch on the left spoke of the steering wheel. There are three levels of warning for this display: 1. High Tire Pressure (above 42 psi (290 kPa)) 2. Low Tire Pressure (below 25 psi (170 kPa)) 3. Flat Tire (below 5 psi (35 kPa)) For conditions 1 and 2, this warning will flash five times and the display will then show the tire pressure gage. For condition 3, this warning will flash continuously until the driver acknowledges it. In any of the three cases, the warning will redisplay every 10 minutes until the situation is corrected. Conditions 2 and 3 will also display a warning light elsewhere on the cluster that will stay illuminated after this warning is acknowledged. See Tire Pressure Light on page 3-41 for more information. Also see Tire Pressure Monitor System on page 5-69 for more information on tire pressure specifications. 3-52 You must complete the shift into FOURTH (4) to turn off this feature. This helps you get the best possible fuel economy. After shifting to FOURTH (4), you may downshift to a lower gear if you prefer. Notice: Forcing the shift lever into any gear except FOURTH (4) when the 1 TO 4 SHIFT light comes on may damage the transmission. Shift only from FIRST (1) to FOURTH (4) when the light comes on. This message will come on when: • The engine coolant temperature is higher than 169°F (76°C), • you are going 15 to 19 mph (24 to 31 km/h) and • you are 21 percent throttle or less.