Chevrolet SUBURBAN 1993 Owner's Manual page 229

Your Driving and the Road
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has
to have a different turn signal
flasher and extra wiring. The green arrows on your instrument panel will flash
whenever you signal a turn
or
lane change. Properly hooked up, the trailer
lights will also flash, telling other drivers you're about to turn, change lanes,
or stop.
When towing a trailer, the green arrows on your instrument panel will flash for
turns even if the bulbs on the trailer are burned out. Thus, you may think
drivers behind you are seeing your signal when they are not.
It's important to
check occasionally to be sure the trailer bulbs are still working.
Driving
on
Grades
Reduce speed and shift to a lower gear before you start down a long
or
steep downgrade. If you don't shift down, you might have to use your brakes
so much that they would get
hot and no longer work well.
On a long uphill grade, shift down and reduce your speed
to 45 mph (70
kmlh)
or
less to reduce the possibility of engine and transmission overheating.
If you have an automatic transmission, you should
use D (or, as
you need to,
a lower gear) when towing a trailer. Operating your vehicle
in D when towing
a trailer will minimize heat buildup and extend the life of your transmission.
Or, i f you have a manual transmission with fifth gear and you are towing a
trailer, it's better not to use fifth gear, just drive in fourth gear
(or,
as you
need to, a lower gear).
Parking on Hilk
You really should not park your rig on a hill. If something goes wrong, your
rig could start to move. People can be injured and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here's how to do it:
1. Apply your regular brakes, but don't shift into P (Park) yet, or into gear
for a manual transmission.
2. Have someone place chocks under the trailer wheels.
3, When the wheel chocks are in place, release the regular brakes until the
4.
Reapply the regular brakes. Then apply your parking brake, and then
chocks absorb the load.
shift to P (Park), or R (Reverse) for a manual transmission.
5.
If you have a four-wheel-drive vehicle, be sure the transfer case is in a
drive gear-not in N (Neutral).
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