We get asked for a “TASSA immobiliser” most weeks. It’s a perfectly sensible thing to ask for, because the phrase is all over installer websites, including ours. But it hides a small misunderstanding that’s worth clearing up, because once you know what TASSA actually is, you’ll ask better questions of whoever you end up trusting with your car.
Short version: TASSA doesn’t make an immobiliser. It’s the organisation that tests the immobilisers, checks the companies that fit them, and keeps a record of every installation done by its members. When you buy a “TASSA immobiliser”, you’re buying a product that has passed that testing, fitted by an installer who has passed those checks. The badge is about the whole job, not just the box.
So what is TASSA?
TASSA stands for the Tracking and Aftermarket Security System Association. It’s an independent body for the aftermarket vehicle security trade, set up in 2018 by VSST Ltd. Its own description is that it exists to “independently verify vehicle security products, services and installations, helping consumers and industry identify trusted solutions with confidence”.
The reason it exists is a gap. For years, Thatcham Research was the name everyone knew for approving car security, and it still is for trackers, which is why you’ll see us talk about Thatcham S5 and S7 all over this site. But Thatcham stepped back from certifying aftermarket immobilisers and similar security products, and that left a whole category of kit, including the Ghost and the Nitro Pro, with no independent standard behind it. TASSA was created to fill that space and now works alongside insurers, police and manufacturers to do it.
If you want it from the source rather than from us, the TASSA website is at tassa.pro.
What TASSA actually checks
There are three parts to it, and all three matter.
The product. An immobiliser has to be verified against TASSA’s standards before it appears on the approved list. Those standards are built on product testing and ongoing analysis of how vehicles are actually being stolen, which is the part we care about most, because theft methods change every year and a standard that doesn’t move with them is worthless. The current verified list includes the Autowatch Ghost II, Ghost Pro and Ghost Pro FD, the Track Manager Nitro and Nitro Pro, and the Ampire WFS400 range.
The installer. This is the bit most people skip over, and it’s the bit that makes the biggest difference. A CAN-bus immobiliser is only as good as the person hiding it. TASSA carries out competency checks on the companies and individual technicians it registers, and it monitors compliance over the installations they carry out. A registered installer has been looked at, not just handed a logo.
The record. Every installation by a TASSA member goes onto the TASSA database. That gives an audit trail that TASSA describes as available to be checked around the clock: what was fitted, to which vehicle, by whom. If you ever need to prove to an insurer or a buyer that your car has a genuine immobiliser professionally fitted, that record is what proves it.
Why it matters to you
Three practical reasons.
Insurance. TASSA verification is what some insurers now look for on aftermarket immobilisers. Toyota Insurance Services, for example, approves the immobilisers on the TASSA list on the condition that they’re “installed by a TASSA registered installer”. Given how hard Toyota and Lexus hybrids are being hit at the moment, that’s not a small detail. We’d never promise you a discount, because every insurer is different and you should ask yours directly, but a TASSA-registered installation is the version of the story an underwriter is most likely to accept.
It weeds out the wrong installers. Anyone can buy an immobiliser online and fit it in a car park. Some of them are very good. Some of them leave the unit sitting behind a loose trim panel with the wiring visible, which a professional thief will find in under a minute. The TASSA badge doesn’t guarantee a perfect job, but it does mean someone independent has checked the company out and is watching what they fit.
Resale and proof. When you sell the car, “it’s got a Ghost” is a claim. A TASSA-registered installation is a record. Buyers and dealers increasingly know the difference.
How to check an installer
Don’t take the logo on a website at face value, ours included. TASSA publishes a public search tool at tassa.pro/find-tassa-installers, and its list of verified products is at tassa.pro/marketplace. Look the company up before you book. If they’re not on there and they’re telling you they’re TASSA approved, walk away.
For the record, Elite Car Security is TASSA member number 0009. We were one of the first companies through the door, and every Ghost and Nitro Pro we fit goes onto the TASSA database. You can read more about what that means on our TASSA Approved Installer page.
So which “TASSA immobiliser” should you have?
Now that you know the badge applies to the whole job, the question becomes which verified product suits your car. For most vehicles that comes down to the Autowatch Ghost II or the Nitro Pro, both TASSA verified, both £499 supplied and fitted, and both invisible once they’re in. The differences between them are real but fairly narrow, and we’ve written them up in our immobiliser guide so you can make the call yourself. If you’d rather just talk it through, that’s what the phone is for.
Call Elite Car Security on 03330 129 028, or get in touch here. We cover Essex, Hertfordshire and North London from our base in Cheshunt, with over thirty years in the trade and TASSA approval, member number 0009.







