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Key Features

  • InstaView™ Door-in-Door®
  • Auto Open Door™
  • Textured Steel™ Finish
  • Fresh Filter
  • Custom Chill™
Suggested Price


Suggested Price
The Art of Essence

The Art of Essence

LG SIGNATURE stays true to the essence,
delivering a new sense of life for the most discerning individual.



InstaView™ Door-in-Door®

InstaView™ Door-in-Door® has a sleek mirrored glass panel that illuminates with two quick knocks, allowing you to see inside the easy access compartment without ever opening the door, reducing cold air loss to help keep food fresher longer.


Auto Open Door™

Auto Open Door™ feature is a smart sensor detector at the foot of the refrigerator that opens the door automatically. Just step on the "Door Open" light projection on the floor in front of the refrigerator and the door gently opens.

Artisan Crafted Platinum Body

Textured Steel™

Full stainless steel body with a scratch-resistant textured finish makes for an impeccable exterior design, enhancing its minimalist style to the fullest.

Custom Chill™

Custom Chill™ Pantry

The wide and deep versatile pantry is available with different temperature settings for storing a wide range of foods from meats to fresh produce.


Elegant Design Meets Enhanced Functionality

Experience true satisfaction with LG SmartThinQ® technology that allows remote management of key refrigerator features.

Follow Us

Stay connected with LG SIGNATURE social channels.


What People Are Saying

Rated 5 out of 5 by from The perfect Refrigerator I Bought My LG Electronics Refrigerator a month ago and it's Very Stylish and make my kitchen great to entertain with the updates and I love the room and and how you can customize the way your grocery with the amazing instadoors for the perfect instaView and keep everything fresh I love you LUPXS3186N
Date published: 2019-04-16
Rated 1 out of 5 by from Keeps breaking! This refrigerator is beautiful, elegant, and organized. I want so badly to love it, but I just can't. We bought the refrigerator in December of 2018, and were a bit apprehensive about spending so much on an appliance, but the sheer beauty of the product, the warranty, and the freezer drawers swayed us. We thought if this thing lasts it will be worth the money. Less than two months later the compressor went out. LG sent out a service technician who replaced the compressor, he was super nice, and super professional. We thought it was fixed, but it wasn't. It is now April 12th, less than four months since purchase, and our refrigerator has broken a total of five times. It works for a little while after each repair, and then slowly warms to above room temperature, all the while humming along as if it were working perfectly fine. With each break down we have had to throw out refrigerated and frozen food, and taken time off work to wait for the repair technician. So in addition to the large amount of money we spent on the refrigerator itself, we are easily out of an additional couple of thousand dollars between food, and work hours missed. I am also starting to seriously doubt I will have any vacation time left to actually take a vacation this year. We have contacted LG and were told to submit an explanation via email that they can review and then they will decide how to resolve our issue. Like I said, it's really beautiful, and I wan't to love it, but for what we have spent we could of bought three other refrigerators that would probably still be working. If it worked, the rating would be high. I will post a follow up, if we can get a resolution.
Date published: 2019-04-12
Rated 5 out of 5 by from Great Refrigerator with cool Features I bought this a month ago and I am really happy with the purchase. Everyone who saw this refrigerator had only one word to say ‘wow’.
Date published: 2019-03-29
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

What microwave do you sell that matches this line? None of the others are listed as "textured steel" and no where around me has any of these in stock to look at, so I need to find a match before I purchase

Asked by: Robelpa
Regrettably, we currently don't have any microwave ovens that have the same Textured Steel™ Finish as the LG SIGNATURE 31 cu. ft. Smart wi-fi Enabled InstaView™ Door-in-Door® Refrigerator, Model # LUPXS3186N...^IFV
Answered by: LGJoel
Date published: 2019-02-14

Does the software on this fridge get updated to stay current? As in, will it have the same software features as the upcoming Instaview ThinQ refrigerator (LNXS30996D)?

Asked by: Sean42
Hi Sean42. Your interest in our refrigerators is greatly appreciated. Regrettably, LG does not divulge detailed information on the software for its refrigerators and we cannot advise you about if the software features on this LG SIGNATURE 31 cu. ft. Smart wi-fi Enabled InstaView™ Door-in-Door® Refrigerator, Model # LUPXS3186N will be the same as those for the LG InstaView ThinQ™ Refrigerator, Model # LNXS30996D. What we can assure is that as long as the refrigerators are connected to your network, they can always receive software upgrades to keep them current. Both refrigerators are currently in production so we do not have the full specifications yet, but as production nears completion, the product information pages for each refrigerator will be updated to reflect their full specifications. Thank you for your patience and understanding...^IFV
Answered by: LGJoel
Date published: 2019-01-31

What are in inside deminsions of the freezer drawers? Will pizza boxes fit inside the freezer drawers?

Asked by: CourtneyG82
The dimensions of the freezer drawers are as follows: Part MJS63873401 (TOP FREEZER DRAWER), Front is 13 ¼ Side is 19” Corner is 4 ¼ Part MJS63873501 (BOTTOME FREEZER DRAWER) Front 13 ½ Side is 16” Corner is 5”and 1/8 ^CP
Answered by: ChrisPSM
Date published: 2018-04-08

 My refrigerator needs new doors with the ice  dispenser. Do you sell just the doors 

Asked by: Frank la spisa
Any parts or accessories for this ENERGY STAR® Qualified LG SIGNATURE 31 cu. ft. InstaView™ Door-in-Door® Refrigerator, Model # LUPXS3186N can be ordered from any of LG's Regional Authorized Parts Distributors located in the Western, Central and Eastern regions of the U.S. The one closest to you in your region is: Encompass Parts Distribution 775 Tipton Industrial Dr. Suite F Lawrenceville, GA 30046 Sales: 866-779-7906 Fax: 800-552-1431 The other Parts Distributors can be found at^IFV
Answered by: LGJoel
Date published: 2018-06-28

What are the outside dimensions of the refrigerator??

Asked by: Den1964
The outer dimensions for the ENERGY STAR® Qualified LG SIGNATURE 31 cu. ft. InstaView™ Door-in-Door® Refrigerator, Model # LUPXS3186N can be found under Dimensions/Clearances/Weights in the product's specifications on its product information page on the company site. The refrigerator has a depth of 36 5/8" (includes handles), a width of 35 3/4", a height of 69" to the top of the case and a height of 70 1/4" to the top of the door hinges...^IFV
Answered by: LGJoel
Date published: 2017-11-02

What is the distance between the doors (measured left to right) we are pinching our fingers between the doors when we close them I know they are "designed" to be handled from the bottom, but the bottom is too low

Asked by: plenkey
We apologize about the issue you are having with the refrigerator. While we do not provide specs on that measurement, it is about a quarter of an inch from left to right. That measurement can change due to the environment in which the unit is installed.
Answered by: NeilE
Date published: 2019-01-26

Is LUPXS53186N available in Canada

Asked by: MrACP1911
Our offices in the U.S. only have information on product availability for the U.S. and do not have any information for Canada. To see if the LG SIGNATURE 31 cu. ft. InstaView™ Door-in-Door® Refrigerator, Model # LUPXS3186N is available in Canada, please visit their site, and enter the model number in the search field or you can contact the Support Representatives in Canada at 1-888-542-2623 (7am-12am)...^IFV
Answered by: LGJoel
Date published: 2017-07-11

Hi, I need a door light switch for my LG bottom freezer model LDC 20778 ST. its the switch for the top fridge door. Please help.

Asked by: Ben Ng
Regrettably, the U.S. does not have information for LG Authorized Parts Distributors in Canada from whom you can order the light switch for your LG 30 Inch, 19.7 cu.ft. Bottom Freezer Refrigerator with Pull-Out Freezer Drawer, Model # LDC20778ST. Please contact the Customer Information Center for our Canadian subsidiary at 1- 888-542-2623 for assistance...^IFV
Answered by: LGJoel
Date published: 2017-10-24
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