GMC 1997 Safari Owner's Manual page 307

Don't use any of these unless this manual says you can.
In many uses, these will damage your vehicle:
0
Alcohol
0
Laundry Soap
Bleach
0
Reducing Agents
Cleaning the Inside of Your Vehicle
Use a vacuum cleaner often to get rid of dust and loose
dirt. Wipe vinyl or leather with a clean, damp cloth.
Your GM dealer has two cleaners, a solvent-type spot
lifter and a foam-type powdered cleaner. They will clean
normal spots and stains very well. Do not use them on
vinyl or leather.
Here are some cleaning tips:
1. Always read the instructions on the cleaner label.
2. Clean up stains as soon as you can -- before they set.
3. Use a clean cloth or sponge, and change to a clean
area often. A soft brush may be used if stains
are stubborn.
4. Use solvent-type cleaners in a well-ventilated area
only. If you use them, don't saturate the stained area.
5. If
a ring forms after spot cleaning, clean the entire
area immediately or it will set.
Using Foam-Type Cleaner on Fabric
1.
2.
3.
4.
5.
6 .
7.
8.
9.
Vacuum and brush the area to remove any loose dirt.
Always clean a whole trim panel or section. Mask
surrounding trim along stitch or welt lines.
Mix Multi-Purpose Powdered Cleaner following the
directions on the container label.
Use suds only and apply with a clean sponge. Don't
saturate the material and don't rub
it
roughly.
As soon as you've cleaned the section, use a sponge
to remove the suds.
Rinse the section with a clean, wet sponge.
Wipe off what's left with a slightly damp paper towel
or cloth.
Dry it immediately with a blow dryer.
Wipe with a clean cloth.