A car immobiliser stops the engine from starting unless the correct key, tag or code is present, making it much harder for thieves to drive your vehicle away. In South Africa, where theft and hijacking are real risks, many owners add an aftermarket immobiliser on top of the factory system. AutoElectricians.co.za passes your request to an independent auto electrician in your area, who quotes you directly for installation or repairs. We don't fit immobilisers ourselves, the service is free and there's no obligation.
What is a car immobiliser?
If you're wondering what is a car immobiliser, it's an electronic device that interrupts one or more circuits the engine needs to start or run, such as the starter, fuel pump or ignition. Most modern vehicles have a factory immobiliser linked to a transponder chip in the key. Aftermarket units add a second, independent layer:
- Transponder or tag immobilisers that disarm when a tag is near the vehicle
- Automatic immobilisers that re-arm a short time after the ignition is switched off
- PIN-code CAN-bus immobilisers that need a code entered on existing buttons
- Alarm and immobiliser combinations controlled by one remote
Ghost-style CAN-bus immobilisers
A growing number of owners ask about a ghost immobiliser, a term widely used for PIN-code immobilisers that connect to the vehicle's CAN-bus data network. Instead of a separate keypad, you enter a sequence on existing buttons such as the steering wheel or window controls before the engine will start. Because there's no obvious extra wiring or fob, they're hard for thieves to find, and some help protect against key cloning and relay attacks. Fitment varies by vehicle, so ask the installer whether a CAN-type unit is compatible with your model and what happens if you forget the code.
Car immobiliser repairs
When an immobiliser fails, the car may crank but not start, or not crank at all. Causes include a flat tag or remote battery, a corroded connection, a failing module, or a fault in the factory key transponder system. Searches for car immobiliser repairs near me often come from drivers stuck at home or at work, so mention if the vehicle can't be moved and whether you need a mobile auto electrician.
Insurance, cost and choosing an installer
Some insurers specify an approved immobiliser for certain vehicles, so check with your insurer before buying and ask what certificate they need. Cost depends on the type of unit, the vehicle's wiring, whether it's combined with an alarm, and how much dashboard has to come apart. Ask for a written quote, a guarantee on product and labour, and clear instructions for the emergency override.
Choosing an auto electrician for immobiliser installation
The cheapest price is not always the best value. When your quote arrives, check:
- Diagnosis first: the auto electrician should test the system and explain the fault before replacing parts.
- Parts: whether the quote is for new, exchange or reconditioned parts, and the brand or quality level.
- Guarantee: how long parts and workmanship are guaranteed, and whether a call-out fee applies.
- Timing: when the work can be done, and whether it can be done at your home, office or roadside.
What to include in your request
- Vehicle make, model and year, and whether it uses keyless entry
- The type of immobiliser you're interested in, or ask for advice
- Any insurer requirements for approved products or certificates
- For repairs, what happens when you try to start the vehicle
Frequently asked questions
Does my car already have an immobiliser?
Can an immobiliser drain my battery?
What happens if I forget my immobiliser PIN?
Immobiliser Installation by province
- Immobiliser Installation Gauteng
- Immobiliser Installation Western Cape
- Immobiliser Installation KwaZulu-Natal
- Immobiliser Installation Eastern Cape
- Immobiliser Installation Free State
- Immobiliser Installation Limpopo
- Immobiliser Installation Mpumalanga
- Immobiliser Installation North West
- Immobiliser Installation Northern Cape
Immobiliser Installation by city
- Immobiliser Installation in Johannesburg
- Immobiliser Installation in Pretoria
- Immobiliser Installation in Centurion
- Immobiliser Installation in Sandton
- Immobiliser Installation in Midrand
- Immobiliser Installation in Randburg
- Immobiliser Installation in Roodepoort
- Immobiliser Installation in Alberton
- Immobiliser Installation in Boksburg
- Immobiliser Installation in Kempton Park
- Immobiliser Installation in Benoni
- Immobiliser Installation in Germiston
- Immobiliser Installation in Krugersdorp
- Immobiliser Installation in Vereeniging
- Immobiliser Installation in Vanderbijlpark
- Immobiliser Installation in Cape Town
- Immobiliser Installation in Bellville
- Immobiliser Installation in Kuils River
- Immobiliser Installation in Somerset West
- Immobiliser Installation in Paarl
- Immobiliser Installation in Stellenbosch
- Immobiliser Installation in George
- Immobiliser Installation in Mossel Bay
- Immobiliser Installation in Worcester
- Immobiliser Installation in Durban
- Immobiliser Installation in Pinetown
- Immobiliser Installation in Pietermaritzburg
- Immobiliser Installation in Richards Bay
- Immobiliser Installation in Ballito
- Immobiliser Installation in Margate
- Immobiliser Installation in Newcastle
- Immobiliser Installation in Port Elizabeth (Gqeberha)
- Immobiliser Installation in East London
- Immobiliser Installation in Bloemfontein
- Immobiliser Installation in Welkom
- Immobiliser Installation in Polokwane
- Immobiliser Installation in Tzaneen
- Immobiliser Installation in Nelspruit (Mbombela)
- Immobiliser Installation in Witbank (eMalahleni)
- Immobiliser Installation in Middelburg
- Immobiliser Installation in Secunda
- Immobiliser Installation in Rustenburg
- Immobiliser Installation in Klerksdorp
- Immobiliser Installation in Potchefstroom
- Immobiliser Installation in Kimberley
- Immobiliser Installation in Upington
