The part number for the TYC parking light for a 1993 Chevy S10 pickup is 12-1247-01. The list price is $30.35, but they can be found online for $21 to $25.
Parking switch? Do you mean the parking light switch? If you do, The dash will pull loose on the left top and bottom just above the switch and below. From there you can see how the light switch comes out.
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Remove the headlight assembly and you will have access to the parking light bulb.
The ashtray light on a Chevy pickup has a replaceable bulb. depending on the model the bulb could be a plug in or screw in type.
that light is the low coolant warning light
Dark Brown for all parking and side marker lights.
disconnect the battery for a few minutes
You may be low on brake fluid or the parking brake linkage needs adjusting.
Usually located on the transmission.
It is located just above the brake pedal pad.
are brake lights staying on or is brake in the dash on ?
The best way to replace burned out dash illumination bulbs is to remove the dash cluster. If all the bulbs are not working, check the dash light brightness control to see if that switch is turned off or not working. If you still have parking lights, the fuse is good.