2007 Cadillac Escalade ESV - Headlight and solenoid issues

right headlight headlight is out
dash message says solonode

Do you mean high beam headlight? If so, the high beam solenoid in the bulb assembly may be bad. I believe the type of HID system that Cadillac used here uses a solenoid to change the position of the bulb shield to redirect the low beam for high beam operation.

A new HID bulb assembly may be needed.

This assumes the right side high beam fuse (in underhood fuse block) is good.

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