Sorry I don’t have my truck at the moment. But if you take off your rear license plate, you can quickly and easily tell them if you have the module or not. If you want to post a picture of yours, I can tell you.
Yes all of the power sources are getting proper power. It only does this when the truck is parked and off. It stops just by unlocking the truck or starting it up. All of the trailer lights work perfectly otherwise.
I know this has been covered in many other threads, and that the truck pulses the lights every several seconds as part of the trailer security feature. Mine does that too. But it will then start to flash much more rapidly. Like multiple times per second. See attached video. Anyone else have this happen and know what causes it? 056977CE-CBB8-4E5B-8C38-BA2A1C1CDD4A.MOV
I have a 2019 SLT without the NHT/Max Tow, but with the Z82 trailering package, factory trailer brake controller, trailering app, and the IOT radio. The truck did not come with the trailer TPMS; not only did it not come with the sensor, but it also didn't come with the module that goes behind the rear license plate. Not realizing that a separate module was needed, I ordered the sensors first. That obviously did nothing, as the truck did not recognize them. So I then ordered the module from eBay. My truck had the wiring harness already ran to module location, so when the module arrived I just plugged it in. The trailering app immediately recognized the module and gave me an option to set up the trailer TPMS sensors. No dealer programming necessary. It was all plug and play. I had America's Tire install the sensors, and I then used my TPMS tool (Amazon, same one for doing tire rotations) to program them. It works perfectly. The trailering app now displays the tire pressure and temperature for all 4 trailer tires. Just thought I'd put this out there in case anyone is wondering if this can be added. I read a GM tech article where the writer indicated that it could NOT be added after-the-fact, but that is clearly not the case. Here were the items I purchased to make it all work: Sensors, part #84152501. $65 new on eBay for a set of 4. Module, part #84458180. $77 new from GMPartsDirect.com All-in for about $150.
My local dealers are all saying that the towing mirrors are not compatible with my truck. I’m fine doing some re-pinning of the connectors though. Looking at the accessory mirrors, part number 84776098. Unfortunately it looks like they are not power folding.
I’ve read various treads on this topic but there seems to be contradictory answers, so I’m hoping someone can help clear it up for me. I have a 2019 Sierra SLT with non-tow mirrors. They are chrome, memory power adjustable, power fold, heated, auto-dimming, with side spotlight. No blind spot monitoring. I want to replace them with the towing mirrors with same feature set. Is that possible, and if so, does anyone have the part numbers that I’ll need to order?
RhinoGuy - What year/make/mode do you have? I have a 2019 Sierra and the “hold for 15 seconds” thing didn’t work for me.
Interesting. Although I think most of us have 1500’s. I haven’t heard of fast idle for the half tons.
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