1999 CADILLAC DEVILLE bulb

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2-36
Turn Signal/Multifunction Lever
Turn and Lane Change Signals
To signal a turn, move the lever all the way up or
down. The lever returns automatically when the turn
is complete.
An arrow on the instrument
panel will flash in the
direction of the turn or
lane change.
Raise or lower the lever until the arrow starts to flash to
signal a lane change. Hold it there until the lane change
is complete. The lever returns when it's released.
If the turn signal is left on, a warning chime will sound
and the Driver Information Center (DIC) will display
TURN SIGNAL ON (after driving about a mile) to
remind you to turn it off.
Arrows that flash rapidly when signaling for a turn or
lane change may be caused by a burned out signal bulb.
Other drivers won't see the turn signal.Replace burned
-out bulbs to help avoid possible
accidents. Check the fuse (see ªFuses and Circuit
Breakersº in the Index) and for burned
-out bulbs if the
arrow fails to work when signaling a turn.
Headlamp High/Low Beam
Pull the turn signal lever all the way toward you and
then release it to change the headlamps from low beam
to high or from high beam to low.
This light on the instrument
panel will be on, indicating
high
-beam usage.
Flash-To-Pass
This lets you use the high-beam headlamps to signal the
driver in front of you that you want to pass.
Pull the turn signal lever toward you to use. When you do:

If the headlamps are either off or in the DRL mode,
the high
-beam headlamps will turn on. They'll stay
on as long as you hold the lever there. Release the
lever to turn them off.

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4-38 Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a different
turn signal flasher and/or extra wiring. Check with your
dealer. The arrows on your instrument panel will flash
whenever you signal a turn or lane change. Properly
hooked up, the trailer lamps will also flash, telling other
drivers you're about to turn, change lanes or stop.
When towing a trailer, the 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 around 45 mph (70 km/h) or less to reduce the
possibility of engine and transaxle overheating.
Parking on Hills
CAUTION:
You really should not park your vehicle, with a
trailer attached, 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 do not shift into
PARK (P).
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then shift into
PARK (P) firmly and apply your parking brakes.
5. Release the regular brakes.

6-
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6-1
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Fuels in Foreign Countries
6
-5 Filling Your Tank
6
-8 Filling a Portable Fuel Container
6
-8 Checking Things Under the Hood
6
-11 Engine Oil
6
-16 Engine Air Cleaner/Filter
6
-19 Automatic Transaxle Fluid
6
-23 Engine Coolant
6
-27 Windshield Washer Fluid
6
-28 Brakes
6
-32 Battery
6
-33 Bulb Replacement
6
-41 Windshield Wiper Blade Replacement6
-42 Tires
6
-51 Appearance Care
6
-51 Cleaning the Inside of Your Vehicle
6
-54 Cleaning the Outside of Your Vehicle
6
-55 Cleaning Aluminum or Chrome-Plated
Wheels (If Equipped)
6
-56 Underbody Maintenance
6
-56 Chemical Paint Spotting
6
-57 GM Vehicle Care/Appearance Materials
6
-58 Vehicle Identification Number (VIN)
6
-59 Electrical System
6
-69 Replacement Bulbs
6
-69 Capacities and Specifications
6
-70 Air Conditioning Refrigerants
6
-70 Normal Maintenance Replacement Parts

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6-33
Bulb Replacement
For the proper type of replacement bulb, See
ªReplacement Bulbsº in the Index.
For any bulb changing procedure not listed in this
section, contact your dealer's service department.
Halogen Bulbs
CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps
1. To access the headlamps, lift the cover as shown.

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6-34
2. Turn the headlamp housing socket counterclockwise
to unlock the socket from the lamp housing.3. Disconnect the socket from the harness by separating
the locking clip.
4. Install the new bulb and socket to the wiring harness
connector. Make sure that the harness is locked to the
bulb socket.

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6-38 Front Turn Signal Lamps
1. The turn signal lamps are located below the
headlamps. To access, lift off the headlamp cover
(see Step 1 under ªHeadlampsº).
2. Turn the housing socket clockwise to unlock the
socket from the lamp housing.
3. Remove the turn signal lamp housing socket and
replace the bulb.

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6-39 Center High-Mounted Stoplamp (CHMSL)
1. Lift the trim cover to remove.
2. Twist the socket counterclockwise and remove the
socket and bulb from the housing.
3. Replace the bulb.
Reverse the steps to reassemble the stoplamp assembly.

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6-40 Rear Turn Signal Lamps and Taillamps
1. Loosen the upper Torx
screw, but don't remove it.
2. Gently tilt the top portion of the lamp housing to
access the bulb sockets. If you can't access the lower
bulb socket, remove the lamp housing completely.
3. Press the bulb socket housing lever and turn the
socket counterclockwise to remove it.