I get the gps warning light with the slash asross it at the most inoppourtune times (like downtown LA). It happens maybe once every 1000 miles or so so it's very intermittent-unfortunately. It appears to be antenna or receiver sensitivity. The dealers wants to have the car to drive until it fails so they have something definative to work on. I'm not ready to hand over my baby for 2 to 3 weeks. Any suggestions out there that I can pass on to my service manager?

 

Live with it. The dealer can't do anything about it anyway - they are just trying to do the best they can and will do nothing but return the car to you telling you its working as designed. They might follw the steps in their service book and replace a sensor or something but it will not make much difference..

GPS sensors as well as satellite radio sometimes breifly stop working intermitantly in downtown areas. While neitherrequires pure, clearline-of-site to the satellites sending their signals in order to function,when your car gets near or in and among high buildings, reflections of the satellite signals off the sides of buildings can cause interference "dead spots" of a half block long or sometimes onlythirty feet across: the GPS system senses that and gives an error. After the car moves a bit, it recycles to check the signal again, picks up the signal and adjusts, and everything is okay. The same thing happens tosome satellite radio (although typically the sat-radio dead spots are not exactly in the same place as the GPS's, since they get signals from different satellites in different positions in the sky).