
Black plate (1,1)Chevrolet HHR Owner Manual - 2011
Section 6 Service and Appearance Care
Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Accessories and Modifications . . . . . . . . . . . . . . . . . . 6-3
California Proposition 65 Warning . . . . . . . . . . . . . . . 6-4
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Doing Your Own Service Work . . . . . . . . . . . . . . . . . . 6-4
Adding Equipment to the Outside of the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Gasoline Octane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Gasoline Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
California Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Fuel E85 (85% Ethanol) . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Fuels in Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 6-9
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Filling a Portable Fuel Container . . . . . . . . . . . . . . . 6-12
Checking Things Under the Hood . . . . . . . . . . . . . . .6-12
Hood Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Engine Compartment Overview . . . . . . . . . . . . . . . . 6-14
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . . 6-20
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . 6-21
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . 6-22
Hydraulic Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Engine Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Windshield Washer Fluid . . . . . . . . . . . . . . . . . . . . . . 6-30
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34
Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
Headlamps, Front Turn Signal, and Parking Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
Center High-Mounted Stoplamp (CHMSL) . . . . . 6-43
Taillamps, Turn Signal, Stoplamps and Back-up Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
License Plate Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Replacement Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Windshield Wiper Blade Replacement . . . . . . . . . . .6-46
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . . . . 6-48
Tire Terminology and Definitions . . . . . . . . . . . . . . . 6-51
Inflation - Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . 6-54
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . 6-55
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . 6-57
Tire Inspection and Rotation . . . . . . . . . . . . . . . . . . . 6-60
6-1

Black plate (12,1)Chevrolet HHR Owner Manual - 2011
Filling a Portable Fuel Container
{WARNING:
Never fill a portable fuel container while it is in the
vehicle. Static electricity discharge from the
container can ignite the fuel vapor. You can be
badly burned and the vehicle damaged if this
occurs. To help avoid injury to you and others:
.Dispense fuel only into approved containers.
.Do not fill a container while it is inside a
vehicle, in a vehicle's trunk, pickup bed, or on
any surface other than the ground.
.Bring the fill nozzle in contact with the inside
of the fill opening before operating the nozzle.
Contact should be maintained until the filling is
complete.
.Do not smoke while pumping fuel.
.Do not use a cellular phone while
pumping fuel.
Checking Things Under
the Hood
{WARNING:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing, and tools away from any
underhood electric fan.
{WARNING:
Things that burn can get on hot engine parts and
start a fire. These include liquids like fuel, oil,
coolant, brake fluid, windshield washer and other
fluids, and plastic or rubber. You or others could
be burned. Be careful not to drop or spill things
that will burn onto a hot engine.
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Black plate (15,1)Chevrolet HHR Owner Manual - 2011
A. Windshield Washer Fluid Reservoir. See“Adding
Washer Fluid” underWindshield Washer Fluidon
page 6‑30.
B. Pressure Cap. See Cooling System on page 6‑22.
C. Coolant Recovery Tank. See “Checking Coolant”
under Engine Coolant on page 6‑24.
D. Engine Air Cleaner/Filter. See Engine Air Cleaner/
Filter on page 6‑20.
E. Electric Engine Cooling Fan (Out of View). See Cooling System Cooling System on page 6‑22.
F. Engine Oil Fill Cap. See “When to Add Engine Oil”
under Engine Oil on page 6‑16. G. Engine Oil Dipstick (Out of View). See
“Checking
Engine Oil” underEngine Oil on page 6‑16.
H. Brake Master Cylinder Reservoir. See Brakeson
page 6‑30and Hydraulic Clutch on page 6‑22.
I. Remote Positive (+) Terminal. See Jump Starting
on page 6‑34.
J. Engine Compartment Fuse Block. See Engine
Compartment Fuse Block on page 6‑104.
K. Remote Negative (−) Terminal (Out of View). See Jump Starting on page 6‑34.
6-15

Black plate (16,1)Chevrolet HHR Owner Manual - 2011
Engine Oil
To ensure proper engine performance and long life,
careful attention must be paid to engine oil. Following
these simple, but important steps will help protect your
investment:
.Always use engine oil approved to the proper
specification and of the proper viscosity grade.
See“Selecting the Right Engine Oil.”
.Check the engine oil level regularly and maintain
the proper oil level. See “Checking Engine Oil”and
“When to Add Engine Oil.”
.Change the engine oil at the appropriate time.
See Engine Oil Life System on page 6‑19.
.Always dispose of engine oil properly. See “What
to Do With Used Oil.”
Checking Engine Oil
It is a good idea to check the engine oil level at each
fuel fill. In order to get an accurate reading, the vehicle
must be on level ground. The engine oil dipstick handle
is a yellow loop. See Engine Compartment Overview
on
page 6‑14for the location of the engine oil dipstick.
Obtaining an accurate oil level reading is essential:
1. If the engine has been running recently, turn off the engine and allow several minutes for the oil to
drain back into the oil pan. Checking your oil level
too soon after engine shut off will not provide an
accurate oil level reading. 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.
When to Add Engine Oil
If the oil is below the MIN (minimum) mark, add one
liter/quart of the recommended oil and then recheck the
level. See “Selecting the Right Engine Oil” for an
explanation of what kind of oil to use. For engine oil
crankcase capacity, see Capacities and Specifications
on page 6‑107.
Notice: Do not add too much oil. If the engine has
so much oil that the oil level gets above the upper
mark that shows the proper operating range, the
engine could be damaged.
See Engine Compartment Overview
on page 6‑14for
the location of the engine oil fill cap.
Add enough oil to put the level somewhere in the proper
operating range. Push the dipstick all the way back in
when through.
6-16

Black plate (24,1)Chevrolet HHR Owner Manual - 2011
Engine Coolant
The cooling system in the vehicle is filled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for 5 years or 240 000 km
(150,000 mi), whichever occurs first.
The following explains the cooling system and how to
check and add coolant when it is low. If there is a
problem with engine overheating, see Engine
Overheating on page 6‑28
What to Use
{WARNING:
Adding only plain water or some other liquid to the
cooling system can be dangerous. Plain water
and other liquids, can boil before the proper
coolant mixture will. The vehicle's coolant warning
system is set for the proper coolant mixture. With
plain water or the wrong mixture, the engine could
get too hot but you would not get the overheat
warning. The engine could catch fire and you or
others could be burned. Use a 50/50 mixture of
clean, drinkable water and DEX-COOL coolant. Use a 50/50 mixture of clean, drinkable water and
DEX-COOL coolant. If using this mixture, nothing else
needs to be added. This mixture:
.Gives freezing protection down to
−34°F (−37°C),
outside temperature.
.Gives boiling protection up to 265°F (129°C),
engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine temperature.
Notice: If an improper coolant mixture is used, the
engine could overheat and be badly damaged. The
repair cost would not be covered by the vehicle
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core, and
other parts.
Notice: If extra inhibitors and/or additives are used
in the vehicle's cooling system, the vehicle could be
damaged. Use only the proper mixture of the engine
coolant listed in this manual for the cooling system.
See Recommended Fluids and Lubricants
on
page 7‑8for more information.
Checking Coolant
The vehicle must be on a level surface when checking
the coolant level.
6-24

Black plate (4,1)Chevrolet HHR Owner Manual - 2011
.Fluids visual leak check (or every 12 months,
whichever occurs first). A leak in any system must
be repaired and the fluid level checked.
.Engine air cleaner filter inspection. SeeEngine Air
Cleaner/Filter on page 6‑20.
.Brake system inspection (or every 12 months,
whichever occurs first).
.Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts or
signs of wear.
.Body hinges and latches, key lock cylinders, and
rear compartment hinges lubrication. See
Recommended Fluids and Lubricants
on
page 7‑8. More frequent lubrication may be
required when the vehicle is exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth makes them last
longer, seal better, and not stick or squeak.
.Restraint system component check. See Checking
the Restraint Systems on page 2‑73.
.Fuel system inspection for damage or leaks.
.Exhaust system and nearby heat shields
inspection for loose or damaged components.
Additional Required Services
Every 12 000 km/7,500 Miles
.Rotate tires. Tires should be rotated every
12 000 km/7,500 miles. See Tire Inspection and
Rotation on page 6‑60.
At Each Fuel Stop
.Engine oil level check. See Engine Oilon
page 6‑16.
.Engine coolant level check. See Engine Coolanton page 6‑24.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑30.
Once a Month
.Tire inflation pressures check. See Inflation - Tire
Pressure on page 6‑54.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑60.
.Sunroof track and seal inspection, if equipped. See
Sunroof on page 3‑48.
7-4