Nut4RedWine

Hello Hanna and welcome to the forum. Was too darn cold up here so did not put them on yet. A truck too long to fit in an already filled garage did not help either. Now that the warm season is upon us, it should get done in the next couple of weeks. Will post once done. Cheers,

Just to let any interested party know, I tapped on the solid knowledge base accumulated by pgamboa. Not enough Gentlemen like him in this World. So to upgrade from DL3 to DQS++ mirrors (2018 Silverado 2500HD LTZ Crew Cab 6.6 Duramax): - purchased aftermarket 1A Auto # 1AMRP01790 - full functionality except auto-dimming; - purchased related harness & pigtail from pgambo; and - will perform the mod soon as I have the parts. Will report back in due time. Cheers

Hi Phil, thank you for the prompt reply. Thanks again for the quality of the details, the usefulness of the information. For your information, the links provided all lead to A1 Auto. They thank you too! Not an issue for me, I already had scouted the sites of the 2 vendors. [soapbox mode on] Normally I stick with the OEM but in this case, I perceive disrespect of the Customer base by supplying inadequate standard mirrors to long-haul towing machines. Bleeding us a little more for an upgrade that is in fact exactly the opposite is not decent. [soapbox mode off] In the two aftermarket suggestions, one says "for Models WITH Temperature Sensors", while the other says "for Models WITHOUT Temperature Sensors". Is this difference a decision factor? I will PM you regarding the required harness. Cheers,

Hi all, The Machine: 2018 Silverado 2500HD Duramax LTZ CrewCab. Yes, it is fitted with the diesel exhaust brake RPO code A40. It came with the standard DL3 mirrors, so fully functional meaning power everything, seat memory, temp sensor, etc. However, tow mirrors were not fitted and I need them with all the functionalities of the DL3. So I inquired with Customer Service and was recommended the following: 23372182 Outside rear view towing mirror package; black in color. 23372181 Outside rear view towing mirror package; chrome. 84125571 Driver door wiring harness. 84125561 Passenger door wiring harness. The memory module will require dealer programming. Accessory Camper Mirror feature: Power glass adjust Heated glass Lighting (Red Turn signals, Amber Park lamps, White Cargo Lamps) Manual Extend/Retract, Manual Fold Accessory Camper Mirrors do NOT have: Memory, Power Fold, Puddle/Courtesy Lp, Electrochromic day/night change I am flabbergasted and most displeased by the last paragraph, the "do NOT have". I want an upgrade, not the contrary! From reading a few threads, it appears I have 2 options: a) Get the LH and RH DQS mirrors and harnesses and hope everything works; or b) Go aftermarket with a Trail Ridge set from their single vendor and hope everything works. I keep reading the wiring is is not a simple task with either options. I also read the TR tow mirrors do offer a bit more functionality at a significantly better price and equivalent quality. Naturally, I tend to lean toward TR mirrors but not sure which set to get for full functionality and how much of a nightmare it will be to have them working correctly. Anyone here with a Duramax (and associated RPO A40) and LTZ package went from DL3 mirrors to Trail Ridge tow mirrors? Would be nice to hear on the experience and the part number that was purchased. Should I go with the DQS mirrors, what are the part number for the LH & RH mirrors and wiring harnesses associated with RPS A40? Will it be plug & play? Thank you in advance for sharing and spreading the knowledge.