Car Alarm
A car alarm warns of intrusion using sensors and a siren or horn.
What is Car Alarm?
It includes door, bonnet, interior and tilt sensors. It is armed with locking. Aftermarket alarms can cause faults if poorly installed. Interior sensors can be switched off before locking when leaving pets or when parking with windows open. Many alarms have a backup siren with its own battery.
How it works
A sensor triggers and the system sounds the siren and flashes lights.
Why it matters for your car
False alarms often come from bonnet switches or interior movement sensors. A faulty alarm can drain the battery.
Other terms
- Atkinson Cycle
- Child Lock (Child Safety Lock)
- Door Card (Door Panel)
- Fuel Pump Control Module (Fuel Pump Driver)
- GPS Navigation System
- Harmonic Balancer (Crankshaft Damper)
- Headlight Washer
- Iron Fallout Remover
- Mode 3 Charging Cable (Type 2 Cable)
- No-Claims Bonus (No-Claims Discount)
- Pedestrian And Cyclist Detection
- Running Boards
- Service History
- Solar Charging
- State Of Charge (SoC)
- Thread Locker
- Tyre Bulge (Sidewall Bubble)
- Tyre Puncture
- Vapour Lock
- Wireless EV Charging (Inductive Charging)