If you leave your radio on, it could be badly; damaged. The repairs wouldn’t be covered by; An electric fan can start up even when the engine- Page 206

First Edition for Buick LeSabre Owner’s Manual – 1999

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2. Get the vehicles close enough so the jumper cables

can reach, but be sure the vehicles aren’t touching
each other. If they are, it could cause a ground
connection you don’t want. You wouldn’t be able to
start your vehicle, and the bad grounding could
damage the electrical systems.

To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump start procedure. Put your automatic
transaxle in PARK (P) before setting the 
parking brake.

3. Turn off the ignition on both vehicles. Unplug

unnecessary accessories plugged into the cigarette
lighter. Turn off all lamps that aren’t needed as well
as radios. This will avoid sparks and help save both
batteries. In addition, it could save your radio!

NOTICE:

If you leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.

4. Open the hoods and locate the batteries.

CAUTION:

An electric fan can start up even when the engine
is not running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.