2009 Pontiac G8 Owner's Manual - Page 177

Driving and Operating One to Four Shift Light instrument panel cluster and a message will be displayed in the Driver Information Center. You must complete the shift into 4 (Fourth) to turn off this feature. This helps you get the best possible fuel economy. Instrument Panel Cluster After shifting to 4 (Fourth), 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. Driver Information Center When this light comes on, you can only shift from 1 (First) to 4 (Fourth) instead of 1 (First) to 2 (Second). The light will be displayed on the This light will come on when: 8-11 Parking Brake • The engine coolant temperature is higher than 169°F (76°C), To set the parking brake, pull up on the parking brake handle. If the ignition is in the ON/RUN position, the brake system warning light will come on. See Brake System Warning Light on page 4-15. • you are going 15 to 19 mph (24 to 31 km/h) and • you are 21 percent throttle or less.