2007 Chevrolet Silverado 2500 Pickup Owner's Manual - Page 278

TRANS (Transmission) HOT IDLE ENGINE Notice: If you drive your vehicle while the transmission fluid is overheating and the transmission temperature warning is displayed on the instrument panel cluster and/or DIC, you can damage the transmission. This could lead to costly repairs that would not be covered by your warranty. Do not drive your vehicle with overheated transmission fluid or while the transmission temperature warning is displayed. If the transmission fluid in the vehicle gets hot, this message will appear on the DIC along with a continuous chime. Driving with the transmission fluid temperature high can cause damage to the vehicle. Stop the vehicle and let it idle to allow the transmission to cool. This message will clear and the chime will stop when the fluid temperature reaches a safe level. See Transmission Temperature Gage on page 255. TRANS (Transmission) IN WARM UP (Allison Transmission® Only) When temperatures are very cold, the transmission will prevent certain operations such as shifts to some ranges and engaging the torque converter clutch to protect against damage. When active, the DIC will display the message TRANS IN WARM UP. TURN SIGNAL ON If a turn signal is left on for 3/4 of a mile (1.2 km), this message will appear on the display and you will hear a chime. Move the turn signal/multifunction lever to the off position. Pressing any of the four DIC buttons will acknowledge the message and clear it from the DIC display. If your vehicle does not have the four DIC buttons, pressing the trip odometer reset stem will acknowledge the message and clear it from the DIC display. 278