Block Exemptions Explained: Will Aftermarket Car Security Void My Warranty?
- James Briggs
- Jul 8
- 3 min read
Ever been told that fitting a Ghost Immobiliser or dash cam will ruin your car warranty? It’s a line many dealerships love to use — and it can leave Bedfordshire drivers scratching their heads, torn between beefing up their vehicle’s security or playing it safe with their warranty.
Let’s set the record straight. If you’ve ever wondered, “Does adding an immobiliser void my car warranty?”, you’re not alone. This post lifts the bonnet on Block Exemption regulations — the not-so-secret piece of legislation that gives you, the proud car owner, the right to upgrade your security without voiding that all-important warranty.
In plain English: if you’re considering an aftermarket Ghost Immobiliser in Bedford or Luton, this is your read.

Why Block Exemptions Matter for Bedfordshire Drivers
What exactly is a Block Exemption? In short, it’s your legal safety net. It means your car manufacturer cannot force you to only use their parts or services — as long as any aftermarket kit, like an immobiliser or tracker, doesn’t damage the car.
This is gold dust for local drivers who’ve invested in high-end cars like Range Rovers. According to UK vehicle crime stats, Bedfordshire has seen a rise in sophisticated thefts — so stepping up your car’s security isn’t a luxury, it’s common sense.
Yet too many owners get spooked by warranty myths, leaving their cars vulnerable. The real risk? Not the Ghost Immobiliser, but having no extra security at all.
How Block Exemptions Work: A Quick Breakdown
So, what’s covered — and what’s not? Here’s what you need to know before booking that install.
1. Know Your Rights
Block Exemption Regulations are part of UK consumer law (originally from the EU) that stops manufacturers from locking you into their service centres or parts. It applies whether you’re driving a brand new lease or an older motor.
Key point: You can choose qualified professionals like JB Auto Guard to install aftermarket products.
2. Fit Approved Products
Not all kit is equal. That’s why you’ll see TASSA registration plastered over trusted installers’ websites. TASSA (Tracking and Aftermarket Security System Association) approval helps guarantee the product is tested and up to scratch.
We use trusted brands like the Autowatch Ghost 2 Immobiliser. It won’t interfere with your vehicle’s original systems — so there’s no excuse for your warranty to be in jeopardy.
3. Professional Installation Is Non-Negotiable
No shady backstreet jobs. Poor installs are the only reason your warranty could legitimately be voided. A sloppy fitter splicing wires into the wrong loom? That could spell trouble.
A pro fitting means it’s done right, it works properly, and your warranty remains intact. Simple as that.

FAQs: Busting the Biggest Warranty Myths
These are the questions drivers ask us every week.
Will a Ghost Immobiliser affect my manufacturer warranty?
No — provided it’s installed properly by a qualified, insured fitter and doesn’t damage your vehicle’s electrical system.
What if my car dealer says I can’t fit a tracker?
Point them to Block Exemption legislation. Unless the tracker itself causes damage, your warranty stays valid.
Do I need to tell my insurer?
In many cases, yes — especially for Thatcham-approved trackers. Good news: some insurers may even knock money off your premium.
How JB Auto Guard Keeps Your Warranty Safe in Bedfordshire
We know how important your warranty is — and how vital your car’s security can be.
When you choose JB Auto Guard, you’re working with a local, mobile specialist trusted across Bedfordshire. Our technician is TASSA registered, fully insured and has a background in high-level vehicle protection — including ex-MET Police work.
We fit:
Autowatch Ghost 2 Immobilisers: Ultimate protection, no messy wiring.
Thatcham-approved trackers: Real-time recovery and insurance perks.
Dash cams: Proper hardwired setups that don’t drain your battery.
Want to dig deeper? Read our Ghost Immobiliser Installation Guide or see how our Vehicle Trackers work to give you peace of mind.
The Takeaway for Bedfordshire Drivers
Block Exemptions exist to protect you, not the dealer’s profits. Upgrading your car’s security is smart — just make sure it’s done right.
So, if you’re weighing up extra protection but don’t want to lose sleep over your warranty, you know who to call.
Ready to protect your vehicle the right way?
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