GMC 1996 Sierra Owner's Manual page 74

3. If your engine still won't start (or starts but then
stops), wait 15 seconds and start over.
When the engine starts, let go of the key and the
accelerator pedal.
I
NOTICE:
Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer. If you don't,
your engine might not perform properly.
If you ever have
to have your vehicle towed, see
the part of this manual that tells how to do it
without damaging your vehicle. See "Towing
Your Vehicle" in the Index.
Engine Coolant Heater (Option)
-
In very cold weather,
0°F (-18°C) or colder,
the
engine coolant heater
can help.
You'll get easier starting and better fuel economy during
engine warm-up. Usually, the coolant heater should be
pl~~gged in a minimum of four hours prior to starting
your vehicle.
To use the coolant heater:
1.
Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt AC outlet.
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