Chevrolet 1994 Blazer Owner's Manual page 75

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R (Reverse)
-
Use this gear to back up.
NOTICE:
Shifting to "R" (Reverse) while your vehicle is moving forward
could damage your transmission. Shift to "R" (Reverse) only
after your vehicle is stopped.
To rock your vehicle back and forth to get out of snow, ice or sand
without damaging your transmission, see "If You're Stuck: In Sand,
Mud, Ice or Snow" in the Index.
N (Neutral) - In this position, your engine doesn't connect with the
wheels. To restart when you're already moving, use "N" (Neutral) only.
Also, use
" N '
(Neutral) when your vehicle is being towed.
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