Electrical Glitch Burnt Smell...?

cinellipro

Yesterday while sitting at a stop sign I noticed a burnt smell which lasted no more than a few seconds. Then noticed some of the gauge lights went out, specifically the fuel temperature gauge. Within seconds the dash lights came back on and the smell disappeared. I tried to replicate the event a couple of times but nothing unusual was elicited. I have made no electrical or radio modifications. I had the ignition lock switch changed last year under the recall. This is obviously not normal. The car has the warranty, but not sure if the dealership will be able to diagnose the problem. Any ideas?