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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.

Hygiene Fresh+™

Fresh Filter

Fresh Air Filter with forced air circulation and dedicated fan helps to deodorize the air.


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 big enough So far I'm very happy with my new refrigerator, I can keep all my food in the diffrent compartments
Date published: 2018-10-18
Rated 5 out of 5 by from Perfect for my needs! Perfect for my needs! I really love this new refrigerator! My hands are usually full when I'm putting away groceries and the open door projection button is terrific. Yes, the doors are heavy, but not too heavy -- I just nudge it with my elbow. My little dog opened the door once - he had been watching me step on the projection and thought he'd check it out. He stuck his paw on the light and the top door opened. The door shut back shortly thereafter and he's shown no further interest. (Glad I don't have a great dane though)! I think being able to grab a bottle of water or can of soda from the front without opening the entire refrigerator is very helpful. The ice dispenser works nicely and quickly replaces cubes once dispensed. I've used the pre-measured water amounts a few times, but for my purposes, this isn't needed. The fact that the drawers self close is really nice. I like the idea of the appetizer tray; I haven't used it so far other than to store some cheeses in it. I really, really love the french door freezer with the six drawers and six side shelves!!! I can see and find what I'm looking for!!! I love to cook and when I do, I make enough to use in the future. With the LG french door freezer, my freezer is no longer the abyss into which something goes and dies a slow and painful freezer death -- with the old giant bin, I could never find what I was looking for unless I took everything out (or a bunch of stuff out) and put it on my already crowded counters - which is a pain, so I'd just buy fresh replacements. The bottom drawers are large enough to hold a medium sized frozen turkey. I also really like the fact that the drawers slide out when you open the door - I'm tall with back issues so this is particularly convenient. I can organize and see and take out things that I'm looking for so easily! The doors are fingerprint resistant which is an absolute plus! I like the look of the stainless steel on the inside. I love the idea of a fresh filter eliminating my need to keep an open box of baking soda inside (which can get knocked over and create a mess). The crisper drawers are really roomy - I can store two large (17.3 cup) produce savers in one drawer with ample room for other produce in front of it. I also love the fact that you don't have to take a million things out of the refrigerator to change the water filter - just the stuff on the side door (one small shelf only). The water dispenser and ice dispenser in the door is wonderful and saves so much room! Cons: I don't like that the under-shelf lights do not work if you move a shelf out of the predetermined position. The engineer who designed the shelf positions must not have any tall groceries. Salad dressings, sauce bottles, large size yogurt, or milk cartons will not fit with the predetermined position. I adjusted the bottom shelf and now the lights do not come on - they only come on in one position. For really tall objects, the only choice is to store it in the front door. Storing a cake on a pedestal in the refrigerator??? Forget about it. An open bottle of wine??? Nope - and it won't fit in the door if it's a tall bottle and you have a stopper in it. (I guess drinking more wine isn't a terrible thing). I also personally think the deli drawer should be larger. I wouldn't miss the appetizer drawer if it could result in the enlargement of the deli drawer. Bottom line, I love the refrigerator and hope it lasts for many years.
Date published: 2018-10-17
Rated 4 out of 5 by from It is aight This is aight frig n it get cold real good, too short tho
Date published: 2018-08-12
Rated 5 out of 5 by from LG Signiture is the top if the line refrigerator I have had this for over a month now and am verry happy with every aspect of this refrigerator. The auto open and close feature it has is very helpfull when you have your hands full and just need that little help. The doors do feels a little heavy when opening and closing but the heavy doors shiws this is a quality frig
Date published: 2018-06-25
Rated 4 out of 5 by from Great Quality/Build I bought this refrigerator a month ago am very happy with the capacity, features and the service department. Two concerns though. The layout of the interior shelves cannot be changed to a different slot without deactivating the undershelf led lights. In order to store taller items Milk, orange juice cartons, etc you need to raise the lower shelf. When this is done the led light for that shelf is deactivated and the interior lighting is diminished. This could be corrected by designing push back half shelves or by designing all shelf positions for led light activation. Clearly a design oversight on a top of the line refrigerator. Also, minor. The bottom rack of the door in door requires lifting milk across the wifi display and the top rack has a lip on the bin so items can't be remobed/accessed through the door in door.
Date published: 2018-05-19
Rated 5 out of 5 by from great refrigerator. Quality inside and out We received this a few weeks ago. I love the stainless interior which is easy to keep clean and great against bacteria. The doors are sturdy and the interior lights make the inside bright and clean looking. There is no spot inside which seems to be colder then the other and finally, the water tastes great from the new filter.
Date published: 2018-04-23
Rated 5 out of 5 by from I love it I've had this refrigerator for several months now we all absolutely love it we're even gotten used to the doors closing a little differently than they do on other refrigerators and for us it's just fine the freezer works wonderfully the drawers are fantastic the shelves in the refrigeration compartment are easy to clean and there is plenty of light so you can see what is it in there the ice and water dispenser works very well I like the drawers in the refrigerated compartment because they have settings depending on what you're storing in them I like that there is a display telling you what the temperature is in the refrigerator and the freezer I just can't Rave about this enough I am so glad
Date published: 2017-09-20
Rated 4 out of 5 by from Like it but needs some improvement Installed 7/12/17. Really like it but would like some improvement. 1. Measured fill is nice but would like to press 4oz, or 8oz, or 16oz button and walk away while the glass is being filled instead of staying and holding the glass while it is filling. 2. The top two doors are heavy when closing when door shelves are stocked with jars and bottles. Need a special hinge to help closing the door controlling the weight of the door. 3. Need a shelf that folds away so that tall bottles can be placed in refrigerator. 4. Very happy with the way it keeps food cool. Like the freezer the way the drawers pull out and return when closing the freezer doors.
Date published: 2017-08-22
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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 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: 2017-07-24

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

My lg refrigerator is not making ice what could be the matter 

Asked by: Faye 1
We regret the trouble you have experienced with this refrigerator. Typically, the lack of ice production will be related to the internal temperature of the freezer/ice compartment. This occurs most frequently near the original installation of the product, as the machine works to reach a proper cooling temperature, or if there is high traffic with doors being frequently opened and closed, causing a rise in the temperature. If this is not the case, please contact our Customer Interactive Center at 800-243-0000 to further troubleshoot this matter.
Answered by: NeilE
Date published: 2017-02-21

Why arent air filters used to keep the dirt off the coils? Thus throwing away the dirty filter and adding a new one without having to clean the coils with brush and vacuum cleaner? 

Asked by: dfink
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