overheating BUICK LACROSSE 2007 User Guide

When the engine is cold, the coolant level should
be at or above the cold ll line on the coolant
recovery tank. If it is not, there may be a leak at the
pressure cap or in the radiator hoses, heater hoses,
radiator, water pump, or somewhere else in the
cooling system.
{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak.
If you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.If there seems to be no leak, with the engine on,
check to see if the electric engine cooling fans
are running. If the engine is overheating, the fans
should be running. If the fans are not running,
the vehicle needs service.
Notice:Engine damage from running your
engine without coolant is not covered by your
warranty. SeeOverheated Engine Protection
Operating Mode on page 370for information
on driving to a safe place in an emergency.
Notice:Using coolant other than DEX-COOL®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
372

Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and where
to obtain service, see your GM Warranty booklet for
details. For additional information refer to the tire
manufacturer’s booklet included with your vehicle.
{CAUTION:
Poorly maintained and improperly used
tires are dangerous.
Overloading your vehicle’s tires can
cause overheating as a result of too
much friction. You could have an
air-out and a serious accident. See
Loading Your Vehicle on page 319.
Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
CAUTION: (Continued)
CAUTION: (Continued)
Tire pressure should be checked when
your vehicle’s tires are cold. See
Inflation - Tire Pressure on page 409.
Overinated tires are more likely to
be cut, punctured, or broken by a
sudden impact — such as when you
hit a pothole. Keep tires at the
recommended pressure.
Worn, old tires can cause accidents.
If the tire’s tread is badly worn, or
if your vehicle’s tires have been
damaged, replace them.
402

Engine (cont.)
Overheated Protection Operating Mode.... 370
Overheating............................................. 367
Reduced Power Light............................... 196
Starting.................................................... 111
Enhanced Traction System (ETS)................ 295
Entry Lighting.............................................. 161
Event Data Recorders (EDR)...................... 489
Extender, Safety Belt..................................... 38
Exterior Lamps............................................ 158
Exterior Lighting Battery Saver.................... 160
F
Filter
Engine Air Cleaner................................... 358
Finish Damage............................................ 446
Flashers, Hazard Warning........................... 150
Flash-to-Pass.............................................. 153
Flat Tire...................................................... 425
Flat Tire, Changing...................................... 426
Flat Tire, Storing......................................... 435Fluid
Automatic Transaxle................................. 360
Power Steering........................................ 378
Windshield Washer.................................. 380
Fog Lamps.................................................. 160
Folding Rear Seat......................................... 14
Fuel............................................................ 343
Additives.................................................. 344
California Fuel.......................................... 344
Check Gas Cap Light.............................. 199
Filling a Portable Fuel Container.............. 348
Filling Your Tank...................................... 346
Fuels in Foreign Countries....................... 345
Gage....................................................... 198
Gasoline Octane...................................... 343
Gasoline Specications............................ 344
Low Warning Light................................... 198
Fuses
Fuses and Circuit Breakers...................... 450
Instrument Panel Fuse Block................... 450
Underhood Fuse Block............................. 452
Windshield Wiper..................................... 449
502