11. Other Considerations
Manufacturer Warranties
During our investigations, we came across claims that guaranteed the product would not void the manufacturer warranty.
We therefore sought the car manufacturer’s viewpoint on the installation of aftermarket devices regarding warranties. We
posed the following questions:
1. Does installation of aftermarket immobilisers void the manufacturer warranty?
2. Does it make a difference if it has been installed by an authorised installer?
3. If something with the electrics broke, would the aftermarket device likely be blamed for the fault?
The manufacturer responses were unanimous that:
• Yes, the warranty will be voided;
• No, it does not make any difference if they were an authorised installer; and
• Yes, any aftermarket installation would likely be looked at as the source of a fault.
“Just the introduction on a non-manufacturer electrical / electronic component into the vehicle’s electrical system can cause
disturbance to the BUS / CAN systems, let alone physical damage to various electronic control units”.
There was also comment made regarding non-electrical components, “(as the manufacturer) we couldn’t not pay for a faulty
door trim if it has a non-genuine immobiliser fitted but if they removed the door trim to install – we wouldn’t cover it.”
Any addition to the electrical system of a vehicle has potential to cause issues. In fairness, this may not be a major concern
for those vehicles that are already out of warranty or several years old, but caution should still be taken from a safety (and
financial) perspective as it could adversely affect other systems within the vehicle.
Our advice to the consumer is if voiding the manufacturer warranty is of concern to you, we suggest contacting your
manufacturer or local dealer and get their advice before installing any aftermarket equipment.