Problem with my 1998 Chevrolet Astro.
4.3 V6
Question = On my 1998 Chevy Astro, when I put the gear selector into drive, the light that looks
like a "red box" that is supposed to be around the letter " D " doesn't come on. After a couple of
minutes when I wait or start driving, it comes on and stays on around the letter " D ". Sometimes
the red gear selection light may flicker quickly and then stay on. This also happens when Park,
Neural or 2 is selected.

The "red box" indicator sometimes stays on around the selected letter, sometimes it flickers and
then stays on around the letter, or it may stay off for a while and appear later. The PRNDL321
lights always work properly except it's the red box around the selected gear that comes on late
or flickers. What can be causing this and how can it be fixed?

There are 2 things that can cause this. Either a bad
instrument cluster (dash), or a faulty range
selector switch. The range selector switch is more probable. This switch is on the transmission.
The connector is usually very hard to get of off the switch. The connector is usually almost
melted into the switch. A heat gun would be needed to remove. Then the connector would need
to be cleaned before plugging into the newly installed switch.
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Chevy Astro Shifter Light Does Not Work