Battery Not Charging
If the battery is not charging during operation, this
message will appear on the DIC. The charging system
light may also be displayed on the instrument panel
cluster. SeeCharging System Light on page 3-30for
more information. Driving your vehicle when the battery is
not charging properly can drain the battery. Have the
electrical system checked by your GM dealer as soon as
possible. Press the select button to acknowledge this
message and clear it from the DIC display.
Battery Voltage Too High
This message will be displayed when the battery
voltage is higher than normal and you try to raise or
lower the convertible top. The charging system light may
also be displayed on the instrument panel cluster.
SeeCharging System Light on page 3-30for more
information. Press the select button to acknowledge the
message and clear it from the DIC display.
Battery Voltage Too Low
This message will be displayed when the battery
voltage is lower than normal and you try to raise or
lower the convertible top. The charging system light may
also be displayed on the instrument panel cluster.
SeeCharging System Light on page 3-30for more
information. Press the select button to acknowledge the
message and clear it from the DIC display.
Cargo Cover Ajar
This message will be displayed when trying to open or
close the convertible top while the cargo cover is
open. Make sure the cargo cover is fully closed before
trying to open or close the convertible top. This
message will clear itself from the DIC once the cargo
cover is closed.
Change Trans (Transmission) Fluid
(Automatic Transmission Only)
If the transmission fluid needs to be changed, this
message will appear on the DIC. SeeAutomatic
Transmission Fluid on page 5-20andScheduled
Maintenance on page 6-4for more information.
Check Oil Level
If the oil level in the vehicle is low, this message will
appear on the DIC. Check the oil level and add oil
as necessary. SeeEngine Oil on page 5-13for more
information. Press the select button to acknowledge this
message and clear it from the DIC display.
3-46
Stop Vehicle
This message will be displayed when attempting to
release the cargo cover while the vehicle is in motion.
The vehicle must be stopped to release the cargo cover.
SeeCargo Cover on page 2-35for more information.
Tlat (Tonneau Latch) Hall Switch Fault
This message will be displayed when trying to raise
or lower the convertible top and there is a problem with
this switch. If the message persists, see your
GM dealer for service.
Tonn (Tonneau) Hall Switch Fault
This message will be displayed when trying to raise or
lower the convertible top and there is a fault with
this switch. If the message persists, see your GM dealer
for service.
Tonn (Tonneau) Latd (Latched)
Switch Fault
This message will be displayed when trying to raise or
lower the convertible top and there is a fault with
this switch. If the message persists, see your GM dealer
for service.
Traction Active (Automatic
Transmission Only)
This message, along with the Traction Control
System (TCS) warning light on the instrument panel
cluster, will be displayed when the TCS system is active.
Press the select button to acknowledge this message
and clear it from the DIC display. SeeTraction Control
System (TCS) (Automatic Transmission) on page 4-9
andTraction Control System (TCS) Warning Light
on page 3-32for more information.
Trans (Transmission) Hot Idle
(Automatic Transmission Only)
If the transmission fluid in the vehicle becomes too hot,
this message will appear on the DIC. Stop the vehicle
and let it idle to allow the transmission fluid to cool. This
message will clear when the fluid temperature reaches
a safe level. SeeAutomatic Transmission Fluid on
page 5-20for more information.
3-51
Service............................................................5-3
Accessories and Modifications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specifications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-16
Engine Cover...............................................5-18
Engine Air Cleaner/Filter................................5-18
Automatic Transmission Fluid.........................5-20
Manual Transmission Fluid.............................5-22
Hydraulic Clutch...........................................5-23
Engine Coolant.............................................5-24
Coolant Surge Tank Pressure Cap..................5-27Engine Overheating.......................................5-27
Cooling System............................................5-29
Power Steering Fluid.....................................5-31
Windshield Washer Fluid................................5-31
Brakes........................................................5-32
Battery........................................................5-36
Jump Starting...............................................5-37
Rear Axle.......................................................5-42
Headlamp Aiming...........................................5-43
Bulb Replacement..........................................5-43
Halogen Bulbs..............................................5-44
Headlamps..................................................5-44
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-45
Taillamps, Turn Signal, and Stoplamps............5-47
Back-Up Lamps............................................5-48
Replacement Bulbs.......................................5-48
Windshield Wiper Blade Replacement..............5-49
Tires..............................................................5-51
Tire Sidewall Labeling...................................5-52
Tire Terminology and Definitions.....................5-54
Inflation - Tire Pressure.................................5-57
Tire Inspection and Rotation...........................5-59
When It Is Time for New Tires.......................5-59
Buying New Tires.........................................5-60
Section 5 Service and Appearance Care
5-1
A. Remote Positive (+) Terminal (inside small red box
marked “Battery +”). SeeJump Starting on
page 5-37.
B. Coolant Surge Tank. SeeEngine Coolant on
page 5-24.
C. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-13.
D. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-13.
E. Automatic Transmission Fluid Dipstick (If Equipped)
(Not Shown). SeeAutomatic Transmission Fluid
on page 5-20.
F. Engine Cover. SeeEngine Cover on page 5-18.
G. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-18.
H. Remote Negative (−) Terminal. SeeJump Starting
on page 5-37.
I. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-31.
J. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 5-32.
K. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-90.
L. Clutch Master Cylinder Reservoir (If Equipped). See
Hydraulic Clutch on page 5-23.
M. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-31.Engine Oil
Checking Engine Oil
It is a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
5-13
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
A good time to check your automatic transmission fluid
level is when the engine oil is changed.
Change the fluid and filter at the intervals listed in
Additional Required Services on page 6-6, and be sure
to use the transmission fluid listed inRecommended
Fluids and Lubricants on page 6-12.
How to Check Automatic
Transmission Fluid
Because this operation can be difficult, you may choose
to have this done at the dealership service department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
Notice:Too much or too little uid can damage
your transmission. Too much can mean that some
of the uid could come out and fall on hot engine
part or exhaust system parts, starting a re.
Too little uid could cause the transmission to
overheat. Be sure to get an accurate reading if you
check your transmission uid.Wait at least 30 minutes before checking the
transmission fluid level if you have been driving:
•When outside temperatures are above 90°F (32°C).
•At high speed for quite a while.
•In heavy traffic — especially in hot weather.
•While pulling a trailer.
To get the right reading, the fluid should be at
normal operating temperature, which is 180°F to
200°F (82°C to 93°C).
Get the vehicle warmed up by driving about 15 miles
(24 km) when outside temperatures are above 50°F
(10°C). If it is colder than 50°F (10°C), drive the vehicle
in THIRD (3) until the engine temperature gage
moves and then remains steady for 10 minutes.
A cold fluid check can be made after the vehicle has
been sitting for eight hours or more with the engine off,
but this is used only as a reference. Let the engine
run at idle for five minutes if outside temperatures are
50°F (10°C) or more. If it is colder than 50°F (10°C), you
may have to idle the engine longer. Should the fluid
level be low during this cold check, you must check the
fluid hot before adding fluid. Checking the fluid hot
will give you a more accurate reading of the fluid level.
5-20
Checking the Automatic Transmission
Fluid Level
Prepare your vehicle as follows:
1. Park your vehicle on a level place. Keep the
engine running.
2. With the parking brake applied, place the shift lever
in PARK (P).
3. With your foot on the brake pedal, move the shift
lever through each gear range, pausing for about
three seconds in each range. Then, position
the shift lever in PARK (P).
4. Let the engine run at idle for three minutes or more.
Then, without shutting off the engine, follow
these steps:
The automatic
transmission dipstick
handle will have this
symbol on it.The automatic transmission dipstick is located in the
rear of the engine compartment on the passenger’s side
of the vehicle. SeeEngine Compartment Overview on
page 5-12for more information on location.
1. Flip the handle up and then pull out the dipstick
and wipe it with a clean rag or paper towel.
2. Push it back in all the way, wait three seconds and
then pull it back out again.
3. Check both sides of the dipstick, and read the lower
level. The fluid level must be in the COLD area,
below the cross-hatched area, for a cold check or in
the HOT or cross-hatched area for a hot check.
Be sure to keep the dipstick pointed down to get an
accurate reading.
4. If the fluid level is in the acceptable range, push the
dipstick back in all the way; then flip the handle
down to lock the dipstick in place.
5-21
Consistency of Readings
Always check the fluid level at least twice using the
procedure described previously. Consistency (repeatable
readings) is important to maintaining proper fluid level. If
inconsistent readings continue, contact your dealer.
How to Add Automatic
Transmission Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission fluid to use. SeeRecommended
Fluids and Lubricants on page 6-12.
Add fluid only after checking the transmission fluid while
it is hot. A cold check is used only as a reference. If
the fluid level is low, add only enough of the proper fluid
to bring the level up to the HOT area for a hot check.
It does not take much fluid, generally less than one pint
(0.5 L). Do not overfill.
Notice:Use of the incorrect automatic transmission
uid may damage your vehicle, and the damages
may not be covered by your warranty. Always
use the automatic transmission uid listed in
Recommended Fluids and Lubricants on page 6-12.
•After adding fluid, recheck the fluid level as
described under “How to Check Automatic
Transmission Fluid,” earlier in this section.
•When the correct fluid level is obtained, push the
dipstick back in all the way; then flip the handle
down to lock the dipstick in place.
Manual Transmission Fluid
When to Check Manual
Transmission Fluid
A good time to have the manual transmission fluid
checked is when the engine oil is changed. However,
the fluid in your manual transmission does not
require changing.
How to Check Manual
Transmission Fluid
Because this operation can be a little difficult, you
may choose to have this done at the dealership
service department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading.
Notice:Too much or too little uid can damage your
transmission. Too little uid could cause the
transmission to overheat. Be sure to get an accurate
reading if you check your transmission uid.
Check the fluid level only when your engine is off, the
vehicle is parked on a level place, and the transmission
is cool enough for you to rest your fingers on the
transmission case.
5-22