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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 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
Rated 5 out of 5 by from Nice We don't have an istaview refrigerator. We have french black stainless refrig.
Date published: 2017-08-21
Rated 4 out of 5 by from Great Look, Impressive Features, Room to Improve This unit is unique and loaded with features. The question for me was if they were worth the price. So far the answer is yes, but there are some downsides I would have liked to know prior to buying so here you go. The Good - Space - wow this unit has room to spare and lots of great storage options. The ice-side door has narrow shelves but I actually like them for our smaller items. The shelves are wide and deep and we have yet to find something that doesn't fit. Looks - this unit is beautiful in person. The glass door is functional and handy for frequently used items. Be aware however, the doors extend beyond the face of your cabinets at least 5.5 inches. They are thick doors and pivot in a way that requires space on both sides unlike a built-in unit. Party Tricks - Knock-Knock, the kids love lighting up the interior with a knock. This is one feature I don't think will last past the initial novelty but, we will see. Auto Door Open, this is fun to show people and even better when my hands are full. We weren't sure if we would use it but we do - like it a lot. Auto-extend freezer drawers are handy and make it easy to retrieve items that are down low. They retract quickly too so you don't have to wait to close the door. Interior finish - stainless inside with the shelving lights are brilliant. Love to open and look at the goodies. It looks high-end and so far stays clean to the touch. Function - The food is cold, the veggies are crisp(unlike any of my prior refrigerators), and the ice doesn't chip all over the floor when dispensing. I haven't used any of the smart grid features and don't plan to even if my utility incorporates the technology. The Bad - First, the unit tilts back at the top for the express purpose of allowing gravity to close the door in the event the auto open function is inadvertently triggered. This leads to DOOR SLAMMING. Yikes if you give a door just a little nudge...the contents slam around. Surely there is a soft close design modification or mechanism to raise the back of the unit they could add on a unit that cost over 6 large. The fact that these doors are heavy to begin with, coupled with the tilt, makes for some real ramming speed momentum on both refrigerator doors. This was almost a deal killer for me but we are getting use to this "feature". I called tech support and they hadn't had any input on this issue. Second, this unit is ginormous big. The movers never moved a unit like this and were unprepared. You MUST require them to use floor protection or your hardwoods will be damaged (ours were). Guaranteed. Finally, there are a couple of minor nits. The top shelf behind the glass door is not adjustable and the gap between the top of the shelf and the top of the door is too small to retrieve most items when using the glass door for access. Another nit is the door water is not chilled unlike my prior unit. Finally, I adjusted one of the interior shelves and the under shelf light doesn't work. Will have to see if that holds true when they deliver the next unit. This unit was damaged during shipping.
Date published: 2017-08-21
Rated 4 out of 5 by from Excellent Value I've been completely satisfied with opting to purchase this LG refrigerator. It has tons of space, is super quiet. Smudges wipe off with ease. Makes ice super fast. Only if your a pet owner, (like me), the auto door sensor activates sometimes when my dog lays down in front of the refrigerator. After removing and relocating my kitchen mat this issue was resolved.
Date published: 2016-11-16
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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: 2018-01-05

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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