Black plate (46,1)Chevrolet HHR Owner Manual - 2011
Roof Rack System
The vehicle may have a roof rack system.
{WARNING:
If something is carried on top of the vehicle that is
longer or wider than the roof rack—like paneling,
plywood, or a mattress— the wind can catch it
while the vehicle is being driven. The item being
carried could be violently torn off, and this could
cause a collision, and damage the vehicle. Never
carry something longer or wider than the roof rack
on top of the vehicle unless using a GM Certified
accessory carrier.
For vehicles with a roof rack, the rack can be used to
load items. For roof racks that do not have crossrails
included, GM Certified crossrails can be purchased as
an accessory. See your dealer for additional
information.
Notice: Loading cargo on the roof rack that weighs
more than 75 kg (165 lbs) or hangs over the rear or
sides of the vehicle may damage the vehicle. Load
cargo so that it rests evenly between the crossrails,
making sure to fasten cargo securely. Notice:
Loading cargo directly on the roof of the
vehicle may cause damage to the vehicle and would
not be covered under warranty. Do not place cargo
on the roof the vehicle.
To prevent damage or loss of cargo when driving, check
to make sure crossrails and cargo are securely
fastened. Loading cargo on the roof rack will make the
vehicle’s center of gravity higher. Avoid high speeds,
sudden starts, sharp turns, sudden braking or abrupt
maneuvers, otherwise it may result in loss of control.
If driving for a long distance, on rough roads, or at high
speeds, occasionally stop the vehicle to make sure the
cargo remains in its place.
Do not exceed the maximum vehicle capacity when
loading the vehicle. For more information on vehicle
capacity and loading, see Loading the Vehicle
on
page 5‑22.
Convenience Net
The vehicle may have a convenience net. The metal
rings in the cargo area can be used to attach the
convenience net for several uses. The net can be used
to attach items secured to the floor, to the rear liftgate or
liftgate glass. The net is not for larger, heavier loads.
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Black plate (22,1)Chevrolet HHR Owner Manual - 2011
reverse directions causes a rocking motion that could
free the vehicle. If that does not get the vehicle out after
a few tries, it might need to be towed out. If the vehicle
does need to be towed out, seeTowing Your Vehicle
on
page 5‑28.
Loading the Vehicle
It is very important to know how much weight your
vehicle can carry. Two labels on your vehicle
show how much weight it may properly carry, the
Tire and Loading Information label and the Vehicle
Certification label.
{WARNING:
Do not load the vehicle any heavier than the
Gross Vehicle Weight Rating (GVWR),
or either the maximum front or rear Gross
Axle Weight Rating (GAWR). If you do, parts
on the vehicle can break, and it can change
the way the vehicle handles. These could
cause you to lose control and crash. Also,
overloading can shorten the life of the
vehicle.
Tire and Loading Information Label
Label Example
A vehicle specific Tire and Loading Information
label is attached to the vehicle's center pillar
(B-pillar). With the driver's door open, you will find
the label attached below the door lock post
(striker). The tire and loading information label
lists the number of occupant seating positions (A),
and the maximum vehicle capacity weight (B) in
kilograms and pounds. The vehicle capacity
weight includes the weight of all occupants, cargo,
and all nonfactory‐installed options.
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Black plate (23,1)Chevrolet HHR Owner Manual - 2011
The Tire and Loading Information label also lists
the tire size of the original equipment tires (C) and
the recommended cold tire inflation pressures (D).
For more information on tires and inflation, see
Tires
on page 6‑47andInflation - Tire Pressureon
page 6‑54
.
There is also important loading information on the
Certification/Tire label. It tells you the Gross
Vehicle Weight Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for the front and rear
axles. See “Certification/Tire Label” later in this
section.
Steps for Determining Correct Load Limit
1.Locate the statement “The combined weight
of occupants and cargo should never exceed
XXX kg or XXX lbs” on your vehicle's placard.
2.Determine the combined weight of the driver
and passengers that will be riding in your
vehicle.
3.Subtract the combined weight of the driver
and passengers from XXX kg or XXX lbs.
4.The resulting figure equals the available
amount of cargo and luggage load capacity.
For example, if the“XXX”amount equals
1400 lbs and there will be five 150 lb
passengers in your vehicle, the amount of
available cargo and luggage load capacity is
650 lbs (1400 −750 (5 x 150) = 650 lbs).
5.Determine the combined weight of luggage
and cargo being loaded on the vehicle. That
weight may not safely exceed the available
cargo and luggage load capacity calculated in
Step 4.
6.If your vehicle will be towing a trailer, the load
from your trailer will be transferred to your
vehicle. Consult this manual to determine
how this reduces the available cargo and
luggage load capacity for your vehicle.
If your vehicle can tow a trailer, see Towing a
Trailer (Automatic Transmission)
on page 5‑31or
Towing a Trailer (Manual Transmission)
on
page 5‑37
for important information on towing a
trailer, towing safety rules, and trailering tips.
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Black plate (25,1)Chevrolet HHR Owner Manual - 2011
Example 3
Item DescriptionTotal
A Maximum Vehicle
Capacity Weight for
Example 3 = 1,000 lbs
(453 kg)
B Subtract Occupant
Weight @ 200 lbs
(91 kg) × 5 = 1,000 lbs
(453 kg)
C Available Cargo
Weight =
0 lbs (0 kg)Refer to your vehicle's tire and loading information
label for specific information about your vehicle's
maximum vehicle capacity weight and seating
positions. The combined weight of the driver,
passengers, and cargo should never exceed your
vehicle's maximum vehicle capacity weight.
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Black plate (26,1)Chevrolet HHR Owner Manual - 2011
Certification Label
A vehicle specific Certification/Tire label is found
on the rear edge of the driver's door, or on the
vehicle's center pillar (B‐pillar).The label shows the size of your original tires and
the inflation pressures needed to obtain the gross
weight capacity of your vehicle. This is called the
Gross Vehicle Weight Rating (GVWR). The
GVWR includes the weight of the vehicle, all
occupants, fuel, and cargo.
The Certification/Tire label also tells you the
maximum weights for the front and rear axles,
called the Gross Axle Weight Rating (GAWR). To
find out the actual loads on your front and rear
axles, you need to go to a weigh station and
weigh your vehicle. Your dealer can help you with
this. Be sure to spread out your load equally on
both sides of the centerline.
Never exceed the GVWR for your vehicle or the
GAWR for either the front or rear axle.
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Black plate (31,1)Chevrolet HHR Owner Manual - 2011
Towing a Trailer (Automatic
Transmission)
{WARNING:
The driver can lose control when pulling a trailer if
the correct equipment is not used or the vehicle is
not driven properly. For example, if the trailer is
too heavy, the brakes may not work well—or
even at all. The driver and passengers could be
seriously injured. The vehicle may also be
damaged; the resulting repairs would not be
covered by the vehicle warranty. Pull a trailer only
if all the steps in this section have been followed.
Ask your dealer for advice and information about
towing a trailer with the vehicle.
The vehicle can tow a trailer if it is equipped with an
automatic transmission and the proper trailer towing
equipment. If the vehicle is not equipped as stated
above, do not tow a trailer. To identify the trailering capacity of the vehicle, read the information in
“Weight
of the Trailer” that appears later in this section.
Trailering is different than just driving the vehicle by
itself. Trailering means changes in handling,
acceleration, braking, cooling, durability and fuel
economy. Successful, safe trailering takes correct
equipment, and it has to be used properly.
The following information has many time-tested,
important trailering tips and safety rules. Many of
these are important for your safety and that of your
passengers. So please read this section carefully
before pulling a trailer.
Load-pulling components such as the engine,
transmission, wheel assemblies and tires are forced to
work harder against the drag of the added weight. The
engine is required to operate at relatively higher speeds
and under greater loads, generating extra heat. Also,
the trailer adds considerably to wind resistance,
increasing the pulling requirements.
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Black plate (33,1)Chevrolet HHR Owner Manual - 2011
Weight of the Trailer Tongue
The tongue load (A) of any trailer is an important weight
to measure because it affects the total gross weight of
the vehicle. The Gross Vehicle Weight (GVW) includes
the curb weight of the vehicle, any cargo carried in it,
and the people who will be riding in the vehicle. If there
are a lot of options, equipment, passengers or cargo in
the vehicle, it will reduce the tongue weight the vehicle
can carry, which will also reduce the trailer weight the
vehicle can tow. If towing a trailer, the tongue load must
be added to the GVW because the vehicle will be
carrying that weight, too. SeeLoading the Vehicle
on
page 5‑22for more information about the vehicle's
maximum load capacity.
If using a weight-carrying hitch, the trailer tongue (A)
should weigh 10 to 15 percent of the total loaded trailer
weight (B). Do not exceed the maximum allowable tongue weight
for the vehicle. Choose the shortest hitch extension that
will position the hitch ball closest to the vehicle. This will
help reduce the effect of trailer tongue weight on the
rear axle.
After loading the trailer, weigh the trailer and then the
tongue, separately, to see if the weights are proper.
If they are not, adjustments might be made by moving
some items around in the trailer.
Trailering may be limited by the vehicle's ability to carry
tongue weight. Tongue weight cannot cause the vehicle
to exceed the GVWR (Gross Vehicle Weight Rating) or
the RGAWR (Rear Gross Axle Weight Rating). The
effect of additional weight may reduce the trailering
capacity more than the total of the additional weight.
It is important that the vehicle does not exceed any of
its ratings
—GCWR, GVWR, RGAWR, Maximum
Trailer Rating or Tongue Weight. The only way to be
sure it is not exceeding any of these ratings is to weigh
the vehicle and trailer.
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Black plate (51,1)Chevrolet HHR Owner Manual - 2011
(C) Aspect Ratio:A two‐digit number that
indicates the tire height‐to‐width measurements.
For example, if the tire size aspect ratio is 60, as
shown in item C of the illustration, it would mean
that the tire's sidewall is 60 percent as high as it
is wide.
(D) Construction Code
:A letter code is used to
indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted‐bias ply
construction.
(E) Rim Diameter
:Diameter of the wheel in
inches.
(F) Service Description
:These characters
represent the load index and speed rating of the
tire. The load index represents the load carrying
capacity a tire is certified to carry. The speed
rating is the maximum speed a tire is certified to
carry a load.
Tire Terminology and Definitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the tire.
Air pressure is expressed in pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of a tire's height to
its width.
Belt
:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.
Bead
:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
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