Immobiliser Repair & Bypass in Harrow from £120
Mobile service across North-West London. Typical arrival 25–40 minutes. 24/7 callout, fixed pricing, 12-month warranty.
If your car cranks but won't fire, or the immobiliser light is flashing, the engine ECU isn't seeing the key. We diagnose and fix immobiliser faults at your kerbside in Harrow.
- Full immobiliser system diagnostic
- Coil/antenna ring replacement
- ECU re-sync with existing keys
- Cloned-key & EEPROM repairs
Get an exact quote for your vehicle
Enter your registration — we'll pull the make, model and key type so we can quote you accurately for immobiliser repair in Harrow.
Get An Instant Auto Locksmith Quote
Enter your reg & postcode. Tick any extras — we'll send a tailored quote via WhatsApp in minutes.
Which service do you need?
Bundle & save — add related services
0/600
Fixed price confirmed before we attend · No-damage entry · Dealer-grade key programming
No spam · No obligation · Fixed pricing confirmed before we attend
Immobiliser Repair in Harrow — FAQs
Is this the same as key not detected?+
Often yes — the underlying fault is usually the immobiliser ring or the transponder chip.
How fast can you reach Harrow?+
Typical arrival in Harrow (HA1, HA2, HA3) is 25–40 minutes from the moment you call.
Do you cover all of North-West London?+
Yes — Harrow sits inside our core coverage area for North-West London, alongside Wembley, Pinner, Ruislip, Northolt.