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Anti-Lock Brakes
Description: Today, virtually all cars come with ABS as
standard equipment or as an option. The typical ABS system includes wheel-speed
sensors, a hydraulic control unit, and an electronic control unit. When you
apply the brake pedal, the electronic control unit monitors and compares the
signals from the wheel-speed sensors. If the electronic control unit senses
rapid deceleration (impending lock-up) at a given wheel, the electronic control
unit commands the hydraulic control unit to reduce hydraulic pressure to that
wheel. This type of pressure limiting is similar to pumping the brake pedal,
only much faster. Some pick-up trucks and cargo vans have rear-wheel only ABS to
handle different braking needs under different loading conditions. This type of
ABS system controls only the rear wheels and limits pressure to both of them
when either is about to lock.
Purpose: ABS was designed to help you maintain directional
control during emergency stops and when road conditions are poor. By maintaining
control, you have better chances of avoiding a crash. ABS is especially useful
on wet and slippery roads. You should never pump the brake pedal on a car with
ABS, since the system itself “pumps” the brakes automatically. All you need to
do is apply firm and continuous pressure to the brake pedal to activate ABS
operation. When the ABS system operates, you may feel a pulsating sensation from
the brake pedal. When ABS operation is no longer needed, the braking system
reverts to conventional hydraulic operation without intervention from the ABS
system.
Maintenance Tips/Suggestions: When turning the ignition
switch to the on position, the amber BRAKE, ANTILOCK or ABS light on the
instrument panel should glow momentarily, and then turn off. If the light stays
on or flashes, or comes on while driving, it indicates a fault in the ABS
system. Have your car’s ABS system inspected immediately by a professional
technician to determine the source of the problem. Your owner’s manual may
specify periodic flushing and filling of the brake hydraulic system, which
should not be overlooked. This is a service best left to professional
technicians, as many cars with ABS have specialized brake-bleeding procedures.
Braking systems with ABS can also generate extremely high hydraulic pressures,
which can be dangerous. Once again, consult a professional service technician if
your car needs ABS or hydraulic system service.
Bumpers
Description: Bumpers are located at the front and back of
the vehicle and may be chrome, black, matched or coordinated with the rest of
the vehicle's colours. Bumpers usually incorporate a plastic cover and lower
panel, and a reinforcement bar. Bumpers on 1983 and newer cars are required to
withstand a 2.5 mph impact. This safety standard does not apply to vans, pickups
and SUVs.
Purpose: Bumpers used to serve a largely ornamental
function and were almost exclusively chrome. Today, automobile bumpers
complement vehicle appearance, but are also designed to minimize damage from
low-speed collisions by absorbing crash energy.
Maintenance Tips/Suggestions: Your car's bumpers are not
designed to absorb unlimited low speed collisions. During an impact, the energy
absorbing material will likely be damaged and need replacement. Just because the
bumper looks fine on the outside doesn't mean that it still can absorb
additional impacts. If your car is involved in a collision -- no matter how
minor -- have the bumper damage evaluated by a qualified collision repair
professional.
Unibody
For more
information on Unibody click here
Safety Glass
Description: Safety glass is a critical safety element of
your car. The windshield is made of laminated safety glass, made by sandwiching
a sheet of plastic between two or more layers of glass. The side windows are
made of tempered safety glass, which is made by heating, then a rapid cooling
process.
Purpose: Safety glass performs several crucial tasks:
- Greatly reduces the size and number of flying glass pieces during an
accident, lessening the chance of injury to those inside the car.
- When the glass breaks, it results in small pebble-like pieces rather than
the jagged, sharp pieces from conventional glass.
- When used in a windshield, safety glass helps keeps occupants inside the car
during an accident and also serves as a deflection panel when the passenger side
airbag deploys.
- Because of its high strength, it can provide structural support for the roof
in the event of a rollover accident.
Maintenance Tips/Suggestions: Keep the glass clean at all
times. Insects and other debris can be removed with the use of a "bug sponge"
and a proper cleaner, but be careful not to use strong abrasives that may
scratch the glass.
Make sure that the windshield washer solvent reservoir is full so you can
use your windshield wipers to clear your view when driving. This is critical
during the winter months. Inspect your wiper blades frequently. If worn or
damaged, bad wipers can damage the windshield. To help improve visibility
further, consider a dirt and water repellent that you apply directly to the
windshield.
Minor windshield damage such as chips and cracks can be repaired using
methods now accepted by insurance companies. If complete windshield replacement
is needed, it must be installed properly to yield all its safety capabilities.
If you're in doubt about the condition of any glass on your car, consult a
qualified automotive glass professional.
Horn
Description: The horn system usually includes a horn
switch, horn or pair of horns, fuse, relay and related wiring.
Purpose: The horn is used to alert other drivers of sudden
situations. The horn system is also used as a signalling device for anti-theft
systems.
Maintenance Tips/Suggestions: The horn is an important
safety device and should be checked out immediately if it doesn't work. First,
check the horn fuse (refer to your car's owner's manual for the fuse locations
and assignments) and replace it if needed. If the fuse is OK, check the
connection at the horn to make sure it's secure. If the connection at the horn
is OK, make sure the horn relay is located securely in its socket (this location
is also specified in the owner's manual). If everything seems OK and the horn
still doesn't work, have the system checked by a professional technician.
Lights
Description: Your car's lighting system consists of
several different systems integrated together: Headlights (high and low beams),
fog lights (optional), parking, tail and marker lights, instrumentation
lighting, turn signals, emergency flashers, stoplights, backup lights and
interior lights.
Purpose: The lighting system provides nighttime visibility
under different driving conditions, signals and alerts other drivers, and
supplies light for viewing instruments and the interior.
Maintenance Tips/Suggestions: During normal driving, you
may not notice a light that isn't working. That's why it's best to have your
car's lights inspected at every oil change. Most often, the cause of a faulty
light is a bad bulb. If a whole portion of the lighting circuit doesn't work,
such as the taillights, check the fuses. Refer to your car's owner's manual for
recommended bulb and fuse types, their locations and for information on how to
change them. Most bulbs and fuses on today's cars are easy to change.
If you're changing a halogen headlight bulb, do not touch the bulb with
your bare hands. Oil from your skin can cause the bulb to fail prematurely. A
turn signal that flashes in one direction, but not in the other direction,
usually means there's a bad bulb on the side that does not flash. If the bulbs
and fuses seem OK, but the lighting problem persists, have the lighting system
looked at by a qualified service professional.
Mirrors
Description: Your car's lighting system consists of
several different systems integrated together: Headlights (high and low beams),
fog lights (optional), parking, tail and marker lights, instrumentation
lighting, turn signals, emergency flashers, stoplights, backup lights and
interior lights.
Purpose: The lighting system provides night time
visibility under different driving conditions, signals and alerts other drivers,
and supplies light for viewing instruments and the interior.
Maintenance Tips/Suggestions: During normal driving, you
may not notice a light that isn't working. That's why it's best to have your
car's lights inspected at every oil change. Most often, the cause of a faulty
light is a bad bulb. If a whole portion of the lighting circuit doesn't work,
such as the taillights, check the fuses. Refer to your car's owner's manual for
recommended bulb and fuse types, their locations and for information on how to
change them. Most bulbs and fuses on today's cars are easy to change.
If you're changing a halogen headlight bulb, do not touch the bulb with
your bare hands. Oil from your skin can cause the bulb to fail prematurely. A
turn signal that flashes in one direction, but not in the other direction,
usually means there's a bad bulb on the side that does not flash. If the bulbs
and fuses seem OK, but the lighting problem persists, have the lighting system
looked at by a qualified service professional.
Seat Belts
Description: High-tensile strength belts and harnesses,
connected to high-strength buckles, make up today's seat belts. Once an option
in the 1950s, seat belts are one of the most important standard safety features
of your car.
Purpose: Seat belts have been statistically proven at
preventing injuries and saving lives. Seat belts save over hundreds of lives
each year. Safety belts and harnesses play the primary role in passenger
protection. They provide protection during accidents from all directions,
security during a rollover and proper passenger positioning when an air bag
deploys. They can also prevent the passenger from being hurled forward during
mild front collisions.
Maintenance Tips/Suggestions: Keep your car's seat belts
in good operating condition. Replace any belt that is cut, frayed or shows signs
of weakness. Make sure that the buckles engage completely and don’t separate
when pulled. Seat belts sometimes have defects that are covered under a recall
from the manufacturer. To see if your vehicle is covered, visit the Transport
Canada website http://www.tc.gc.ca/roadsafety/recalls/recintro_e.htm.
Air Bag
Description: Some cars have just an airbag on the driver's
side; others have both passenger and driver's side airbags. During a front
collision of sufficient force, impact sensors close. This triggers an electrical
signal that travels to the air bag module. Upon receipt of this signal, current
arcs across both pins of an igniter and starts a chemical chain reaction. This
arc ignites a canister of gas that ignites sodium azide pellets. The pellets
burn rapidly and change to nitrogen gas. The rapid build-up of nitrogen fills
the bag quickly. The rapid expansion of the air bag tears the steering wheel
cover open at specific locations. The bag reaches full deployment shortly
thereafter.
Purpose: During a severe frontal collision, the air bag
deploys and absorbs the forward force of the driver's or passenger's upper body
as it spreads out over the large surface area of the bag. Air bags and safety
belts make a team. Air bags don't replace belts. They only supplement them
during severe front collisions.
Side Impact Air Bags
Description: Side-Impact airbags come in two different
types: torso protecting and head/torso protecting. Of the car models built in
2003, 40 percent offered head-protecting side airbags (24 percent standard
equipment, 16 percent optional equipment). An even larger number of 2004 model
year passenger vehicles are offering side airbags with head protection (27
percent standard equipment, 21 percent optional equipment).
Purpose: Side-impact airbags provide supplemental
protection during side impacts. Some types provide protection for just the
torso, or for both the head and torso. According to data from the Insurance
Institute for Highway Safety in the United States, side-impact airbags have
reduced deaths among passenger car drivers involved in driver-side collisions by
about 45 percent when the side airbag included head protection and by 11 percent
when the side airbag was designed to protect only the torso.
Maintenance Tips/Suggestions: Side-impact airbags do not
require any periodic maintenance. However, to ensure that the system is
operating properly, make sure that the airbag indicator light works exactly as
described in the owner's manual. With the ignition in the on position, the light
should come on momentarily and then go out. If the light stays on or comes on
while driving, have the system checked by a professional service technician.
Also, air bags sometimes have defects that are covered under a recall from the
manufacturer. To see if your vehicle is covered, visit the Transport Canada
website.
Air Bag Switch
Description: An air bag on-off switch overrides the automatic
deployment function of vehicle airbags and can be installed for the driver,
passenger, or both. To operate the switch, a special key is required to reduce
the chances of misuse. When the air bag is turned off, a light appears stating
DRIVER AIR BAG OFF or PASSENGER AIR BAG OFF. The air bag remains deactivated
until the key is used to turn the system back on.
Purpose: An air bag on-off switch allows an air bag to be
turned off for special circumstances. Some scenarios where air bag deployments
may be risky include:
When absolutely essential to transport infants riding in
rear-facing infant seats in the front passenger seat.
When absolutely essential to transport children ages 1 to 12
in the front passenger seat.
When drivers cannot change their customary driving position
and keep 25 centimetres between the centre of the steering wheel and the centre
of their breastbone.
For people whose doctors claim that because of a medical
condition, an air bag poses a special risk that exceeds the risk of hitting
their head, neck or chest in a crash when the air bag is turned
off.
Maintenance Tips/Suggestions: Deactivating your air bag will
not benefit you or other users of your vehicle. Instead, it will increase the
risk that you and the other users will suffer a head, neck or chest injury by
violently striking the steering wheel or dashboard in a moderate to severe
crash. The installation and use of an air bag switch is only allowed under the
above conditions and should be performed by a trained service professional. Not
all repair facilities install air bag switches.
Safety
Inspections
Description: Safety
inspections consist of a series of safety-related checks for various systems and
areas of the vehicle. For example, some common checks include glass, horn,
tires, wipers, lights, turn signals, brakes, mirrors, steering, suspension, and
restraint systems. Some Canadian provinces require safety inspections at
different times, such as when selling your vehicles.
Purpose: Many other countries often adopt safety
inspections as a means of regulating improved safety for motorists. Research
shows that jurisdictions with annual safety inspection programs have accident
rates that are 20 percent lower than in jurisdictions without safety
inspections. Safety inspections represent a good opportunity to have minor
problems corrected before they become major problems or hazards.
Maintenance Tips/Suggestions: If you live in an area that requires a safety inspection, welcome it as
an opportunity to have your car looked over thoroughly. There's more at
stake here than just safety; an inspection can also detect problems that
could cause major breakdown headaches in the near future. Plan your inspection
into your schedule at a time when the inspection facility isn't backed
up with other work. This often happens at the end of the month when everyone
suddenly rushes at the last minute to schedule an inspection. Planning
ahead gives you time to make better choices about different repairs or
services that may be needed as determined during the inspection.
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