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Consumers invest a substantial amount of money when purchasing a vehicle. The decision to purchase a car alarm is one that should be made only after adequate research has been done. There are a variety of options available on today’s car alarms, learn more about how to go about buying the best car alarm to meet your needs. more »
Car alarms are great deterrents to would-be thieves. But blaring car alarms are a common nuisance in parking lots. Not only are they annoying when accidentally set off, but many car companies manufacture keyless entry buttons that set off the alarm whenever any button is pressed. Fortunately, this problem can easily be fixed. more »
When your Chevrolet Aveo's car alarm won't work, your car is left vulnerable when it is unattended. While the locks will generally still work, the alarm will fail to sound if an intruder does break into your car, leaving the thief free to search around without calling any attention to himself.
Unless you are a skilled mechanic,... more »
You can test car alarms in the same manner regardless of the type or make of the car. The auxiliary electrical component of newer cars are powered by capacitors, which hold power in store for use whether the car will start or not. Cars without capacitor storage rely on the battery. If a dead battery is keeping such a car from... more »
Car alarms are automated devices that help to reduce vehicle theft and damage. They can be built into the car at the production factory or can be installed after buying the car. If you have purchased a new car, installing an alarm in your vehicle is a very good way to help ensure its safety and notify you of any pending dangers. more »
If you need to remove your car alarm from your car and are looking for a way to remove it easily and intact you need to follow a certain easy... more »
To keep your car safe, consider buying an alarm. A car alarm is used to ward off anyone attempting to break into your vehicle. A good brand of car... more »
A car alarm that won't stop can be a frustrating thing for a car owner and anyone within earshot of the alarm. Turning the alarm off without your... more »
The world today is not as safe as it once was. You have to be more careful to protect yourself and your possessions from being violated. One of... more »
Your car alarm is going off again, and your neighbors are livid. No thieves are nearby, so why is it sounding off? And how about those poor... more »
A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car alarms work by emitting high-volume sound (usually a siren, klaxon, pre-recorded verbal warning, the vehicles own horn, or a combination thereof) when the conditions necessary for triggering are met, as well as by flashing some of the vehicles lights, and (optionally) notifying the cars owner via a paging system and interrupting various electrical circuits necessary for the car to start.
Features
Car alarms should not be confused with immobilizers; although the purpose of both may be to deter car theft, they operate in a dissimilar fashion. An immobilizer generally will not offer any audible or visual theft deterrence, nor require any additional input from the driver than the driver of a non-immobilizer car.
Car alarms can be divided into 2 categories:
* OEM (built-in to the vehicle at the factory)
* Aftermarket (installed at any time after the car has been built, such as by the new car dealer, an auto accessories store, or the vehicles owner)
Alarms come with a mix of features. Remote car alarms typically consist of an additional radio receiver that allows the owner to wirelessly control the alarm from a key fob. Remote car alarms typically come equipped with an array of sensors along with immobilizers and motion detectors.
Keyless remote car alarms are typically based on strong cryptography authentication methods.
* Radio receiver
* Immobilizer
* Motion detector
* Wireless USB
Arming and disarming of car alarms
OEM alarms
Almost all OEM alarms are typically armed and disarmed with the vehicles keyless entry remote. On many vehicles the key cylinders in the driver or front passenger door activate switches, so that when a key is used in the door the alarm will arm or disarm.
Some vehicles will arm when the power door lock switch is pressed with the d read more at » http://en.wikipedia.org/wiki/Car+alarm
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