Windshield RFID Credentials

Windshield credentials are commonly used for resident vehicle access at a community entrance

A credential communicates through radio frequency as a vehicle approaches the gate, similar to toll tag (SunPass, TollTag, etc.) systems. When authorized, this will signal a gate to open. For consistent communication with the reader, please click here to view instructions on proper placement, or watch this video.


Some vehicles may be equipped with a type of windshield containing a metal oxide. This can interfere with a credential’s signal. Only certain vehicle makes, models, and years may have a special windshield. For these vehicles, a specific location on the windshield may be recommended for placing a credential, or a different type of credential may be needed. Envera offers alternatives for the vehicles needing a different credential.

Please see below for a list of known vehicle types that may have a windshield with metal oxide or other feature that is known to interfere with a RFID signal. This list is subject to change, and the dealer where your vehicle was purchased should be contacted if there is uncertainty or questions about whether a vehicle has one of these windshields. If your vehicle make is listed below, please click here to visit a website and see if this applies to your model and year.

Vehicles that may have a windshield with metal oxide/other feature:
Vehicle types that may need an external credential:
  • Bentley
  • Buick
  • Chevrolet
  • Oldsmobile
  • Pontiac
  • Porsche
  • Tesla
  • Car hauler with overhead rack