GM Service Manual Online
For 1990-2009 cars only

Object Number: 1430320  Size: A1

If equipped, this message indicates that you can only shift from FIRST (1) to FOURTH (4) instead of FIRST (1) to SECOND (2).

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 4 (Fourth) when the 1 TO 4 SHIFT light comes on may damage the transmission. Shift only from 1 (First) to 4 (Fourth) 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.