Jenkie Posted August 26, 2017 Share Posted August 26, 2017 Hello, I have recently purchased a 17, Silverado 3500 HD - LTZ Z71 - On both mirrors there is a sensor on the bottom side near the outer edge - it is a round ball shaped - I cannot find anywhere online what this is - Any feed back would be greatly appreciated Note: Does not have lane departure option Does not have trailer assist option Link to comment Share on other sites More sharing options...
Boardmember Posted August 26, 2017 Share Posted August 26, 2017 I'm guessing. I have a 1500. Is it a puddle light? Link to comment Share on other sites More sharing options...
Jenkie Posted August 26, 2017 Author Share Posted August 26, 2017 I'm guessing. I have a 1500. Is it a puddle light? Looks like a small camera - its a small sphere - about 1/8" dia Link to comment Share on other sites More sharing options...
enmity02 Posted August 26, 2017 Share Posted August 26, 2017 Do you have a photo? Sent from my SM-G955U using Tapatalk Link to comment Share on other sites More sharing options...
SouthernSilveradoGuy85 Posted August 26, 2017 Share Posted August 26, 2017 It may be something like a sensor for lane assist if the truck has it, where it beeps or something if you're going over the lane. Not sure if that's a feature, but the only other thing I can think of is if the truck has that 360 camera for when you're backing up and the screen shows all around you. Link to comment Share on other sites More sharing options...
Cactus Posted August 27, 2017 Share Posted August 27, 2017 Those are little LED lights which work with your cargo and bed lights. Link to comment Share on other sites More sharing options...
redwngr Posted August 27, 2017 Share Posted August 27, 2017 There is a camera it available... maybe it has it installed. Do they look like the ones on this page ? http://www.gmc.com/gmc-life/trucks/trailering-enhancements-for-sierra.html Link to comment Share on other sites More sharing options...
Bmz72 Posted August 27, 2017 Share Posted August 27, 2017 Hello, I have recently purchased a 17, Silverado 3500 HD - LTZ Z71 - On both mirrors there is a sensor on the bottom side near the outer edge - it is a round ball shaped - I cannot find anywhere online what this is - Any feed back would be greatly appreciated Note: Does not have lane departure option Does not have trailer assist option Diesel ? ... ambient temp sensor ? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
magnum74 Posted August 27, 2017 Share Posted August 27, 2017 Part of the cargo light package. Link to comment Share on other sites More sharing options...
2017HD Posted August 27, 2017 Share Posted August 27, 2017 OK the 2017 3500's come only with the vertical camper/trailering mirrors. The aftermarket cameras are much bigger than what the OP describes - so I will rule them out. The lane departure and front collision system work off a camera in the rearview mirror - so that is also ruled out. The camper mirrors do not have puddle lamps - so again a rule out. The only other item that fits the description is the ambient temp sensor for the DuraMax diesel - but it is only on the passenger side. Since the mirrors are dedicated right and left hands there is no way a truck could get a sensor on both sides. Now I could see someone at the factory putting on a right side diesel mirror on a gas truck - or even a dealer doing parts rob but there is no way you are going to get this sensor on both side mirrors. So I call this as a DMax ambient temp sensor on the passenger side only and a confused OP Link to comment Share on other sites More sharing options...
newdude Posted August 28, 2017 Share Posted August 28, 2017 Trailer camera package. There is a camera it available... maybe it has it installed. Do they look like the ones on this page ? http://www.gmc.com/gmc-life/trucks/trailering-enhancements-for-sierra.html Link to comment Share on other sites More sharing options...
pogrelis97 Posted August 28, 2017 Share Posted August 28, 2017 lane departure warning, mine has it too. Link to comment Share on other sites More sharing options...
hiltz Posted September 2, 2017 Share Posted September 2, 2017 It is the ambient Temp sensor Link to comment Share on other sites More sharing options...
redwngr Posted September 2, 2017 Share Posted September 2, 2017 lane departure warning, mine has it too. Copied from OM: How the System Works The LDW camera sensor is on the windshield ahead of the rearview mirror. Link to comment Share on other sites More sharing options...
kstruckcountry Posted September 2, 2017 Share Posted September 2, 2017 Pics? Sent from my SM-G920V using Tapatalk Link to comment Share on other sites More sharing options...
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