Originally Posted by autoxpresstech unlike incandescent bulbs, leds have polarity. if they do not work rotate 180' . also make sure your dimmer is set to brite. The bulbs just turned out to be a bad batch. The new B8.5D bulbs fit perfectly and are bright! Just to update, the B8.5D LEDs also worked for the time/temp/odometer slots so I guess the wattage difference wasn't an issue after all.
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