By:  Adjure Inc.


Installation Instructions for LED Tail Lights

(Fits Early C-4 Model 1984 to 1990 Corvette)



Light Emitting Diode (LED) tail lights are solid state units.  This means that they do not use a filament type bulb.  The benefits of using LED tail lights are: longer lasting, brighter, cooler operating, vibration resistance, and less current draw.  The Corvette lighting system was designed using filament bulbs.  A filament bulb draws much higher current than LED lights.  Therefore, your installation kit also includes one electronic flasher unit.  Use of the electronic flasher is required for proper operation of the turn signals.  Note: Electronic flashers will continue to operate when one or more turn signal lights have failed.  It is the driver’s responsibility to regularly check that both front and rear signal lights are operating properly.


It is recommended that a trained automotive repair professional carry out the following installation instructions.  It is also recommended that the installer have access to a Corvette service manual.


Turn signal – electronic flasher installation:


a)                   The turn signal flasher is located below the instrument panel on the driver side.

b)                   Remove lower trim panel under instrument panel.

c)                   Turn on ignition key, then turn signal, and listen for flasher clicking.

d)                   Locate the flasher unit just above the aluminum knee bolster.

e)                   Turn off the ignition switch.

f)                     Remove old flasher unit from spring retaining clip, and disconnect wiring connector.  You do not need to be concerned with marking the wiring.

g)                   Plug new electronic flasher unit into wiring connector.

h)                   Install previously removed parts and bolts.


Tail light – installation:


a)                   Each tail light is secured to the car with two (2) self-taping screws.  Access to the back of the tail lights can be gained by one or more methods.

b)                   Method 1 is to remove the rear wheel and inner fender panel.  Then reach back into fender and remove the tail light securing screws.

c)                   Method 2 is to remove the spare tire.  Then reach up into area behind each tail light and remove the tail light securing screws.

d)                   Method 3 is to remove the rear license plate.  Then reach around and remove the inner most tail lights first.  Followed by reaching through the inner tail light holes to access the outer most tail lights.

e)                   Using one or more of the above techniques, remove each tail light unit.

f)                     Remove the light socket from each unit.  Do this by depressing the tab on the side of the socket and then rotating the socket counter-clockwise.

g)                   Remove the filament bulb from the socket.  Do this by carefully pressing the bulb into the socket, while maintaining a slow and constant counter-clockwise motion.  The factory-installed bulb is coated with thick, sticky grease.  So go slowly and use care not to break the bulb.

h)                   Remove all tail light units before installing your new LED tail lights.

i)                     Each LED tail light comes with a male bulb socket attached to the end of the wires.  Plug this socket into the corresponding female light socket, push in the turn like you were installing a bulb.

j)                     NOTE:  Lights will not flash without first installing the provided electronic flasher unit. 


Testing LED tail light and flasher installation:


a)                   Start car and operate turn signals, brake lights, tail lights and hazard warning lights.

b)                   Verify that all lighting functions as designed for your vehicle.

c)                   If any lights do not function correctly, refer to above steps to resolve problems.

d)                   When all lighting is functioning properly, insure that all parts and bolts have been reinstalled before operating your vehicle.