Defect
The dealer-installed accessory trailer wiring harness includes a circuit to provide for back-up lights, if present on a trailer, to illuminate when the transmission is shifted into reverse gear. When installed, and the ignition key is turned to the accessory position, the electronic display in the instrument panel indicates the actual position of the gearshift selector and also illuminates the reverse position indicator. If the reverse position is selected only the reverse position indicator will be lighted. The actual function of the transmission and that of the trailer lights will not be affected. When the ignition switch is in the accessory position the engine will always be off and the gearshift cannot be moved from the PARK position.
Safety Risk
No risk description available.
Remedy
Since this does not pose any safety risk, no corrective action is required.