Page 287 of 398

Downloaded from www.Manualslib.com manuals search engine I n
r
i-
r
r
t
i
i
Whicle Storage
If you’re not going to drive your vehicle for 25 days or more, take off the
black, negative
(-) cable from the battery. This will help keep your battery
from running down.
Contact your dealer to learn how to prepare your vehicle for longer
storage periods.
Battery Power Loss
If you lose battery power or the battery is disconnected, your car’s
computer must be programmed. It takes just over
20 minutes to do it. If
you want to do it yourself, here’s how:
Apply the parking brake.
0 Make sure the front wheels are straight.
Turn off the Electronic Climate Control.
0 Start the engine in “P” (Park) and let it idle for 15 minutes. Then:
0 Put your foot on the brake pedal, shift the transaxle to @ and let it
idle for
3 minutes or more. Do not accelerate the engine. Then:
0 With the car in @ (Drive), turn the Electronic Climate Control to
“Auto” and let the engine idle for 3 minutes or more.
0 Turn your engine off.
Now your computer is programmed.
Page 305 of 398
Downloaded from www.Manualslib.com manuals search engine r,
1
r
r
f
I,
I-
r
r
that all wheel nuts are properly tightened. See “Wheel Nut Torque” in the
Index.
men It’s Time for New Tires
One way to tell when
it’s time for new tires is
to check
the treadwear
indicators, which
will
appear when your tires
have
only,2/32 inch
(1.6 mm) or less of
tread remaining.
Youneed a new
tire if:.
You can see the indicators at three or more -places around the tire.
You can .see cord or fabric showing through the tire’s rubber.;
The tread-or sidewall is cracked, cut or snagged deep enough to show
cord or fabric.
293 r
Page 307 of 398

Downloaded from www.Manualslib.com manuals search engine E
l by treadwear,-traction and teqqerature gwfQrmance. (This applies only
r
to vehicles sold in the United (States.)
Treadweat
. . , .--, . .
r The treadwear grade is .a comparative rating based on the wear rate of
the tire when tested .under controlled -conditions on a specified
.government test course. .For example, a tire graded 150 would \
wear one
and a half
(I 1/2) times as well on the government course-as a tire graded
’ 100. The relative performance of tires depends uponthe .actual
conditions of.their use, however, and may depart significant@
frorri the
norm due to variationsin driving habits, service practices and differences
in rodd characteristics and climate.
.r Daction -A, B, C
t The traction grades, from highest to lowest are: A, B, and C. They
represent the tire’s ability to stop on wet-pavement as measured under
controlled conditionson specified government test surfaces of asphalt
’ and concrete. A tire marked C may have poor traction p.erformance.
Warning: The traction. grade assigned to this tire is based on braking
(straight-ahead) traction tests and doemot include cornering (turning)
r traction.
r Temperature -A, B, C
I I
The temperature grades. are A (the. highest), B, and C, representing the
tire’s resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditions.on a specified indoor laborato\
ry
test .wheel. Sustained
high tevperature can cause the material of the tire
to degenerate and reduce tire.life, and excessive temperature can lead to
- sudden tire failure. The.gradq C corresponds to a level of performance
1- which all passenger car tires mustmeet under the,Federal Motor Vehicle
Safety Standard
No. 109. Grades €3 and A represent higher levels of
performance on thelaboratory test wheel than the.minimum required\
e- bylaw.
Warning: The temperature grade for this tire is established for a tire that
is. properly inflate.d and not overloaded. Excessive speed, unde\
rinflation,
I
r
295
Page 308 of 398

Downloaded from www.Manualslib.com manuals search engine or excessive loading, either separately or in combination, can cause heat
buildup and possible tire failure.
These grades are molded on
the sidewalls of passenger car tires.
While the tires available as standard or optional equipment on General
Motors vehicles may vary with respect to these grades, all such tires meet
General Motors performance standards and have been approved for use
on General Motors vehicles. All passenger type
(P Metric) tires must
conform to Federal safety requirements
in addition to these grades.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced carefully at the
factory to give you the longest tire life and best overall performance.
In most cases, you
will not need to have your wheels aligned again.
However,
if you notice unusual tire wear or your vehicle pulling one way
or the other, the alignment may need to be reset. If you notice your
vehicle vibrating when driving
on a smooth road, your wheels may need
to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked or badly corroded. If wheel nuts
keep coming loose, the wheel, wheel bolts, and wheel nuts should be
replaced. If the wheel leaks air, replace it (except some aluminum wheels,
__
which can sometimes be repaired). See your Cadillac dealer if any of
these conditions exist.
Your dealer will know the kind
of wheel you need.
Each new wheel should have the same load carrying capacity, diameter,
width, offset, and be mounted the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts, or wheel nuts,
replace them
only with new GM original equipment parts. This way, you
will be sure to have the right wheel, wheel bolts, and
wheel nuts for your
Cadillac model.
296
Page 317 of 398

Downloaded from www.Manualslib.com manuals search engine detergent) soaps. Don’t use cleaning agents that contain acid or
abrasives. All cleaning agents should be flushed promptly and not allowed
to dry on the surface, or they could stain. Dry the finish with a soft;clean
chamois or a
100% cotton towel to avoid surface scratches and water
spotting.
r High pressure vehicle washes may cause water to enter your vehicle.
I ,r
Ir
Tires
Your Cadillac dealer has a GM White Sidewall Tire Cleaner. You can use
a stiff brush with the cleaner.
When applying a tire dressing always take care to wipe
off any overspray
or splash from painted surfaces. Petroleum-based products may damage
the paint finish.
Finish Care
Occasional waxing or mild polishing of your Cadillac may be necessary to
remove residue from the paint finish. You can get GM approved cleaning
products
from your dealer. (See “Appearance Care and Materials” in the
Index.)
1 i
r
r
Your Cadillac has a “basecoat/clearcoat” paint finish. The clearcoat gives
more depth and gloss to the colored basecoat. Always use waxes and:polishes
that are non-abrasive and made for a basecoatklearcoat paint finish.
NOTICE: I
Machine compounding or aggressive polishing on a
basecoat/clearcoat paint finish may dull the finish or leave sw\
irl marks.
ALUMINUM WHEELS
Your aluminum wheels have a protective coating similar to the painted
surface of your vehicle. Don’t use strong soaps, chemicals, chrome polis\
h,
abrasive cleaners or abrasive cleaning brushes on them because you could
1 damage this coating. After rinsing thoroughly, a wax may be applied.
305
Page 333 of 398

Downloaded from www.Manualslib.com manuals search engine r
4T80-E Transaxle
r
The 4T80-E transaxle has been designed to complement the output
characteristics
of the Northstar engine. The innovative design
incorporates several features which enhance its overall operation.
This transaxle
is the first of a new generation of “SMART” transmissions.
The computer which controls the electronic shift solenoids adapts to
changing environments while you drive. This provides consistent high
quality shifts under all conditions. Communication between the engine
and transaxle through this computer controls engine output during
activation
of torque management or traction control. Smooth shifting is
ensured
by design. Hydraulic accumulators control shift pressures and all
shifts are made
to free wheeling elements.
The
4T80E uses a dry sump lubrication system with a scavenger pump.
This unique feature enables the transaxle to maintain adequate
pressurized oil supply during all maneuvers.
321
Page 334 of 398
Downloaded from www.Manualslib.com manuals search engine -
Spirited performance with very efficient cruising operation are provided
by the combination
of 4 speed overdrive gearing, a torque clutch, with a -
3.71:l final drive on the ETC and a viscous torque converter clutch with a a
3.1 1:l final drive ratio on the Eldorado.
Front Suspension
..
Your fully independent front suspension is a combination strut and spring
design. The frame is isolated from the body with
six rubber mounts.
Rubber bushings are used at the lower control arm pivots. The upper end
of the strut is isolated by a rubber mount which contains a bearing to
allow for wheel turning. The Road Sensing Suspension will automatically
controls the damping rate
of the struts.
The lower end
of the steering knuckle pivots on a ball joint riveted to the
control arm. The ball joint is connected to the steering knuckle with a
castellated nut and cotter pin.
c-
322
Page 335 of 398

Downloaded from www.Manualslib.com manuals search engine 1'
r I.
ShortILong Arm Suspension- (SLA)
; f
" s *
"'~"^'''"*
-
7
r
Your vehicle uses an independent shortflong arm rear suspension. All the
rear suspension components
are mounted on a suspension support which
is attached
to the body at four points and is fully isolated with bushings
and insulators to minimize road noise. Each rear wheel
is connected to
the suspension support through the suspension knuckle using an upper
and lower control arm and toe link.
The control arms and toe link are attached to the suspension support on
the inboard side, and to a suspension knuckle on the outboard side. The
hub and bearing assembly is mounted to the knuckle and is a single,
non-serviceable unit which eliminates the need for wheel bearing
adjustment. The load leveling (ELC) shock absorbers are attached to the
lower control arm, with the upper end
of the shock attached to the
suspension support. The springs are held in position between the lower
control
arms and a pocket in the suspension support.
323