Buick 1994 LeSabre Owner's Manual page 88

Engine Exhaust Running Your Engine While You're
Parked
It's better not to park with the engine running. But if you
ever have to, here are some things to know.
I
A
CAUTION:
Idling the engine with the air system control off
could allow dangerous exhaust into your vehicle.
(See the earlier caution under "Engine Exhaust".)
Also, idling in
a
closed-in place can let deadly'
carbon monoxide (CO) into your vehicle even if
the fan switch is at the highest setting. One place
this can happen is a garage. Exhaust
--
with CO
--
can come in easily. NEVER park in a garage
with the engine running.
Another closed-in place can be a blizzard. (See
"Blizzard" in the Index.)
86