For 1990-2009 cars

1. The optional rear window defogger system consists of the following parts:

• | A tinted window with multiple horizontal ceramic silver compound element lines

• | Two vertical bus bars baked into the inside surface during the glass forming operation

2. The feed wire, or terminal, is soldered to the bus bar on the left side.
3. The ground wire, or terminal, is soldered to the bus bar on the right side.
4. The system operates on 12 volts.
5. Under some conditions, the heat from the window may not be detected by finger touch.
6. The length of time required to remove the interior fog from the rear window will vary with the following conditions:

• | The vehicle speed

• | The outside window temperature

• | The atmospheric pressure

• | The number of passengers

7. The rear window defogger system uses an instrument panel mounted switch with an integral indicator lamp. The lamp operates for 5 to 10 minutes and automatically turns OFF through the use of an automatic timer.
8. The rear window defogger system can be turned OFF during this operation period by turning either the instrument panel mounted switch or the ignition switch to OFF.