2004 Chevrolet Corvette Owner's Manual - Page 86

One to Four Shift Light (Manual Transmission) When this light comes on, you can only shift from FIRST (1) to FOURTH (4) instead of FIRST (1) to SECOND (2). Downshifting (Manual Transmission) If your vehicle is a coupe or convertible, do not downshift into the gear shown below at a speed greater than shown in the table: FIRST (1) SECOND (2) THIRD (3) FOURTH (4) 50 mph (80 km/h) 74 mph (119 km/h) 101 mph (163 km/h) 130 mph (209 km/h) 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 light 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. If your vehicle is a Z06, do not downshift into a gear shown below at a speed greater than shown in the table: FIRST (1) SECOND (2) THIRD (3) FOURTH (4) 48 mph (77 km/h) 69 mph (111 km/h) 100 mph (161 km/h) 143 mph (230 km/h) 2-30