Coolant  Surge Tank Pressure Cap 
The coolant  surge  tank 
pressure  cap  must  be fully 
installed on the coolant 
surge  tank. 
Nofice: Your pressure  cap is a  pressure-type  cap 
and  must  be  tightly  installed  to  prevent  coolant  loss 
and  possible  engine  damage  from  overheating.  See  “Capacities  and  Specifications”  for  more 
information. 
Engine  Overheating 
You will find a coolant  temperature gage on your 
vehicle’s  instrument  panel.  See 
Engine Coolant 
Temperature Gage 
on page 3-36. In addition, you will 
find a  LOW  COOLANT,  ENGINE  OVERHEATED and  a 
REDUCED ENGINE  POWER  message in the  DIC on 
the instrument  panel.  See 
Driver lnformation Center 
(DIC) 
on page 3-43. 
Overheated  Engine Protection 
Operating Mode 
If an  overheated  engine condition exists and  the 
REDUCED  ENGINE POWER  message  is displayed, an 
overheat protection  mode  which alternates firing groups 
of cylinders helps  prevent  engine  damage.  In this mode, 
you will notice a 
loss in  power  and engine performance. 
This operating  mode allows  your vehicle  to be driven to 
a 
safe place in an  emergency.  Driving  extended miles (km) 
and/or  towing a  trailer in the overheat  protection mode 
should be  avoided. 
Nofice: After  driving  in  the  overheated  engine 
protection  operating  mode, to  avoid  engine  damage, 
allow  the  engine  to  cool  before  attempting  any  repair. 
The  engine  oil  will  be  severely  degraded.  Repair  the 
cause  of  coolant 
loss, change  the  oil  and  reset  the  oil 
life  system.  See “Engine 
Oil” in the  Index. 
5-27  
Capacities and Specifications 
Capacities and  Specifications 
Capacities 
Application 
All capacities  are  approximate.  When  adding,  be sure to 
fill to the  approximate  level,  as  recommended  in  this 
Use 
Refrigerant  Oil,  R134a Systems  0.8 
kg 
1.76  Ibs. 
Air  Conditioning Refrigerant R134a  98.4 
L 26.0 gallons 
Fuel 
Tank  5.7 
L 6.0 quarts 
Engine Oil 
with Filter  14.0 
L 14.8  quarts 
Cooling 
System  Metric 
English 
manual.  See 
Part  D: Recommended  Fluids and Lubricants  on  page 6-16. 
Engine Specifications 
Engine  Spark  Plug  Gap 
Type 
VIN  Code 
VORTEC  6000 
0.060 inches  (1.52  mm)  V8 
U 
Wheels  and Tires 
Wheel  Nut Torque 
See the CertificationKire  label on the  rear  edge  of  the 
Tire 
Pressure 140 Ib ft (190 N*m ) 
driver’s  door. 
5-1  04