GMC 1999 Sierra 1500 Pickup Owner's Manual page 245

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To turn off the flasher, pull out on the collar.
When the hazard warning flashers are on, your turn signals won't work.
Other Warning Devices
If you carry reflective triangles, you can set one up at the side of the road
about 300 feet (100 m) behind your vehicle.
Jump Starting
If your battery (or batteries) has run down, you may want to use another
vehicle and some jumper cables to start your vehicle. But please follow the
steps- below to do it safely.
CAUTION
Batteries can hurt you. They can be dangerous because:
I
They contain acid that can burn you.
They contain gas that can explode
c
te.
. .
They contain enough electricity to burn you.
n hurt
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If you don't follow these
'
!ps exactly, some or all of
tt-
- - e things
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To Jump Start
Your
Vehicle
'
1. Check the other vehicle. It must have a 12-volt battery with a negative
ground system.
If the other system isn't
a 12-volt system with
a negative ground, bot
I
vehicles can be damaged.
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-
If you have a diesel engine vehicle with two batteries (or more), you
should know before you begin that, especially in cold weather, you may
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