October 4, 2026
Car key problems can interrupt your day, whether you have lost your keys, locked them inside the vehicle or need a spare. Nextgen Auto Diagnostics and Keys, Inc. offers automotive locksmith services in Mississauga and surrounding GTA areas, with mobile and in-shop options.
Car key replacement and spare keys
A replacement key must suit your vehicle, and a spare can make future key problems easier to manage. Tell us the year, make and model and whether you have a working key. Replacing all lost keys can involve a different process from duplicating an existing key.
Explore our car key replacement and programming services before requesting a quote.
Transponder keys, smart keys and fobs
Many modern vehicles use a transponder or smart key that communicates with an immobilizer. Cutting a blade alone may not allow the vehicle to start. Compatibility and programming requirements vary by vehicle and key type.
Contact us before purchasing a third-party key fob. Not every fob can be programmed to every vehicle, even if it looks similar.
Locked out of your vehicle?
Share your location and vehicle details so we can discuss car door unlocking and mobile service availability. Have identification and proof of ownership or authorization available. Arrival time and the service approach are confirmed individually.
Ignition issues and broken keys
A key that sticks or fails to turn may have a different cause from a vehicle that does not recognize its key electronically. Describe the symptoms and whether you have a spare. Our ignition repair and key extraction service starts with assessing the issue and suitable next steps.
Mobile and in-shop services across our local area
Mississauga is our main service area. We also serve surrounding areas in the Greater Toronto Area. Contact us with your location to confirm coverage and appointment availability. Some work is suitable for a mobile visit; other jobs need an in-shop appointment.
What information helps us quote?
- Your vehicle year, make and model.
- Whether any working keys remain.
- The problem: unlocking, starting, remote operation or a damaged key.
- Your city and preferred service location.
- Any recent work or changes related to the issue.
Price depends on the vehicle, key type, parts, programming requirements and location. We discuss the scope of work before you book.
ADAS calibration and vehicle diagnostics
Nextgen Auto also offers ADAS camera and radar calibration, static and dynamic procedures, diagnostic scans and calibration reports. These services address separate vehicle needs from key programming. Tell us about relevant windshield, collision or sensor repairs so we can assess the calibration requirements.
Contact Nextgen Auto
Request a quote with your vehicle details, or use the phone and email details below. Appointments are confirmed directly with our team.