If your vehicle is equipped with the outside rearview mirror defrosters, they will operate at the same time you turn on the rear window defroster.
Kia Niro (DE HEV) Owners Manual: 2. Evaporative emission control system
The Evaporative Emission Control System is designed to prevent fuel vapors from
escaping into the atmosphere.
Canister
Fuel vapors generated inside the fuel tank are absorbed and stored in the onboard
canister. When the engine is running, the fuel vapors absorbed in the canister are
drawn in ...
Kia Niro 2017 (DE HEV) Service Manual: Glove Box Housing Components and components location
Component Location
1. Glove box housing complete
...