All keys lost, used ECU swap, or security light on? We reflash and sync so your car starts.
When a vehicle’s ECU or immobilizer no longer recognizes your keys—after an ECU replacement, module fault, or when all keys are lost—we reprogram the system so new keys are authorized and the vehicle starts reliably. Mobile, dealer‑level tools, no towing.
Reflashing is a controlled software procedure that resets or reprograms the vehicle’s ECU or immobilizer so it accepts new keys/fobs and correctly authorizes starting. It’s typically required when all keys are lost, a used ECU is installed, or the immobilizer becomes desynchronized.
We generate/program new keys, then reflash the immobilizer/ECU to authorize them.
We pair the replacement ECU to your immobilizer and keys so the car starts.
We diagnose immobilizer sync faults and correct the software so authorization succeeds.
Phone: (313) 889-3266 | Base: Southfield, MI | Radius: ~35 miles
Hours: Sun–Thu 6:30 AM–11:30 PM, Fri 6:30 AM–1:00 PM, Sat Closed.
Counties covered: Oakland, Wayne, Macomb — Detroit, Dearborn, Livonia, Canton, Warren, Sterling Heights, Troy, Novi, Royal Oak, Birmingham, West Bloomfield, and more.
No. We perform reflashing on‑site with mobile diagnostic equipment, saving you towing and dealership delays.
If all keys were lost, we typically authorize new keys and can disable missing keys for security.
Most vehicles are completed the same visit once we verify model, immobilizer type, and any required precoding.
