501-09 Rear View Mirrors: Description And Operation (page 3 of 10)

appropriate buttons on the underside of the mirror. At the beginning of each ignition cycle the auto-dimming function 
defaults to on. The green status indicator is illuminated while the auto-dimming function is on. 
 
On auto-dimming interior mirrors without a universal transmitter, the auto-dimming function is permanently on while the 
ignition switch is in position II. 
 
When the auto-dimming function is on, the light sensor in the front of the mirror monitors ambient light at the front of the 
vehicle and the light sensor in the rear of the mirror monitors the light coming from behind the vehicle. When the light from 
behind the vehicle exceeds the ambient light level, the auto-dimming circuits darken the interior mirror. Dimming is 
inhibited when reverse gear is selected. The reverse gear signal is provided by a hardwired signal from the reverse relay 
in the CJB. 
 

Universal Transmitter 

The universal transmitter can operate up to three home or office remotely operated systems (e.g. garage door/gate 
openers, lighting and security systems), replacing the individual hand held transmitters required for each system. The 
universal transmitter operates at radio frequencies from 288 to 419 MHz (excluding 322 to 335.4 MHz and 399.9 to 410 
MHz). 
 

 
The universal transmitter has three channels, with separate operating buttons for each channel. When one of the buttons 
is pressed the universal transmitter outputs the radio signal programmed for the related channel (if any) and illuminates 
the red status indicator to confirm transmission. 
 
Hand held transmitters are programmed into the universal transmitter as follows: 
 

Turn the ignition switch to position II.  

 
Press and hold the outer two buttons of the universal transmitter until the red status indicator begins to flash, then 
release the buttons. This initializes the universal transmitter and erases previous settings from all three channels.  
Place the signal emitting end of the hand held transmitter against the underside of the interior mirror.  
Simultaneously press and hold the activation button on the hand held transmitter and the chosen button of the 
universal transmitter. When the red status indicator flashes rapidly, indicating the channel has been programmed, 
release the buttons (The red status indicator flashes slowly at first and can take up to a minute before it flashes 
rapidly).  
To program another channel on the universal transmitter, repeat steps C. and D.  
Turn the ignition switch to 0.  

The radio signals used to operate some home/office systems incorporate a code protection feature. After a channel has 
been programmed from the hand held transmitter, these systems will need to be trained to accept the signal from the 
universal transmitter. To check if a system is code protected, press the appropriate universal transmitter button. If the red 
status indicator flashes rapidly for 1 to 2 seconds, before illuminating permanently, the system has a code protection 
feature. 
 
The system is trained to the universal transmitter, as follows: 
 

Locate the training button on the receiver system (refer to the system's literature for details).  
Press the training button for 1 to 2 seconds, then perform the next step C.) within 30 seconds.  
On the vehicle, press and release the appropriate universal transmitter button, twice. The receiver system should 
now be trained to the universal transmitter.  
If the system does not operate, repeat the procedure, but in step C. press and release the universal transmitter 
button three times.  

   WARNING : The universal transmitter must not be used with any garage door that lacks a safety stop 

and reverse feature, as required by federal safety standards (this includes any garage or door opener model 
manufactured before April 1 1982). A garage door opener which cannot detect an object in the path of a closing 
door, and then automatically stop and reverse the door, does not meet current federal safety standards. Using a 
garage door opener without these features increases the risk of serious injury or death. 

   WARNING : When programming the universal transmitter in the vicinity of the affected system, the

system will operate. If the system controls garage doors or gates, ensure they are clear of people and obje
prevent personal injury or damage to equipment.