Turn signal sounds are processed via the audio system in late model Cadillacs and other GM vehicles. The problem you and others describe could be caused by a borderline signal continuity issue on one or more connector pins at the vehicle's multi-channel audio amplifier. I'd be checking all the connectors at the amplifier, seeing what the individual connector pins look like - whether any of them are pushed back or if any pins show signs of surface oxidation (makes for degraded continuity). The action of removing and then re-applying all connectors could in itself correct the problem. When removing connectors at the amplifier make sure everything is switched OFF in the vehicle.Has anyone ever experienced their turn signal going silent intermittently? Mine has recently.
I had this issue awhile ago the dealer had to reprogram the BCM which corrected the problem. However, recently I noticed it start to happen again.mbarrad said:Has anyone ever experienced their turn signal going silent intermittently? Mine has recently.
Hello DriveOn,Took my car in to the dealer this morning for the musty smell and the silent turn signal. Will let you know what results.
Hi Cdubs33,I had this issue awhile ago the dealer had to reprogram the BCM which corrected the problem. However, recently I noticed it start to happen again.
Good morning Eddie howard,please let us know about the musty smell..
^ jem202 & all - As a way to address this issue I would be asking the dealer to reprogram your audio amplifier with latest available software using TIS2WEB and Tech 2.My car has also recently started doing this - just the blinkers and the emergency flashers - no issue with the radio. First it was just now and then, but in the last couple of days it is now about 90% of the time. I find it very annoying and possibly a bit dangerous. I, too, would appreciate an update on this issue.