1993 BUICK RIVIERA open hood

Engine Block Heater (Option)
In very cold weather, 0 F (- 18 C) or colder, the engine
block heater can help. You’ll get easier starting and
better fuel economy during engine warm-up.
j To use the block heater: I
I. Turn off the engine.
L. Open the hood and unwrap the electrical cord.
1 3. Plug it into a normal, grounded 110-volt outlet.
A CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock.
Also, the
wrong kind of extension cord could overheat
and cause
a fire. You could be seriously injured.
Plug the cord into
a properly grounded
three-prong 110-volt outlet.
If the cord won’t
reach, use
a heavy-duty three-prong extension
cord rated for at least
15 amps.
How long should you keep the block heater-plugged in?
The answer depends on the weather, the kind
of oil you
have, and some other things. Instead
of trying to list
everything here, we ask that you contact
a Buick dealer
in the area where you’ll be parking your vehicle. The
dealer
can give you the best advice for that particular
area.
74

I A CAUTION:
u could be injured if the vehicles roll. Set the
arking brake firmly on each vehicle. Put an
utomatic transaxle
in “P” (Park) or a manual
axle
in “N” (Neutral).
P
3. Turn off the ignition on both vehicles. Turn off all
lights that aren’t needed, and radios. This
will avoid
sparks and help save both batteries. And it could
save your radio!
4. Open the hoods and locate the batteries.
I A 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.
~~
Find the positive .(+) and negetive (-), terminals on
each battery.

Engine Overheating
You willi find a coolant temperature gage and the
warning light about a hot engine on your Buick
instrument panel.
If Steam Is Coming From Your Engine:
I
A CAUTION:
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam
coming from
it. Just turn it off and get everyone
away from the vehicle until
it cools down. Wait
until there is no sign of steam or coolant before
opening the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire. You
or others could be badly burned. Stop your
engine if
it overheats, and get out of the vehicle
until the engine is cool.
If No Steam Is Coming From Your Engine:
If you get the overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high speed driving.
Id.le for long periods in traffic.
If you get the overheat warning with no sign of steam,
try this for a minute or
so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan
3. Try to keep your engine under load (in a drive gear
speed and open the window as necessary.
where the engine runs slower).

High Speed. Shifting When Your Engine is Running ..... 76 Jack. Tire ..................................... 205
Highway Hypnosis
............................... 172 Jacking Up the Car ............................... 205
Hill and Mountain Roads
.......................... 173 Jump Starting ................................... 186
Hills. Parking on
................................. 175
Holding a Baby in Your Car
......................... 43
Hood. Opening the
............................... 221
Horn ........................................... 84 Keys 59
Hot Coolant Warning Light
........................ 113 Keyless Entry System. Remote 64
Hydroplaning
................................... 166
..........................................
......................
Hot Engine. Safety Warnings About 196 Kilomefa- J&$q$cx .. +... .? . ... _. % ......... . ... .’_ rs.z7 t- ........ . 105 .................
Ice. Driving on ................................. 179
Identification Label. Service Parts
................... 261
Identification Number. Vehicle
..................... 261
Idling Your Engine
................................ 82
If You’re Stuck: In Sand. Mud. Ice or Snow
........... 214
Indicator. Turn Signal
............................. 85
Indicators. Disc Brake Wear ....................... 156
Indicators. Warning Lights and Gages
................ 107
Infant Restraint
................................... 45
Inflation. Tire
................................... 245
Inside Mirror
.................................... 99
Inspection. Tire
................................. 245
Instrument Panel
................................ 105
Interior Cleaning
................................ 253
Interlock. Brake-Transaxle Shift
.................. 75. 81
Introduction
. How To Use This Manual ............... 10
Ignition Key Positions
............................. 71
Label.
Service Parts Identification
.................. 261
Lane Change Indicator
............................. 85
Lap-Shoulder Belt Usage by Children
................. 55
Leaving Your Vehicle .............................. 80
Level Control. Electronic
.......................... 104
License Plate Holder. Rear
......................... 104
Light. Safety Belt
................................. -25
Light.
Turn Signal Indicator ......................... 85
Lighter. Cigarette
................................ 111
Lights Daytime Running
.............................. 98
Panel and Interior
.............................. 96
Traffic
...................................... 145
“On” Warning
................................. 96
Operation
.................................... 86
Loading Your Vehicle ............................ 242
Lap Belt
........................................ -42
Lights
& Gages. Warning Indicators ................. 107
302