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The Override Switch from TailgateFix.com is designed to fit and work on any GM’s trucks/vehicles that have either the MultiPro™
Tailgate for GMC or Multi-Flex™ Tailgate for Chevrolet. Currently, the vehicles with this unique tailgate are GMC’s Sierra trucks :
(1500, 2500, & 3500 models), as well as, Chevrolet’s Silverado trucks : (1500, 2500, & 3500 models). (ALL Model years : 2019 thru 2023 & Newer)

NO. The beauty of our Splitgate Override Switch from TailgateFix.com is that it is a One Size Fits All It works and installs the same on any of the designated GM trucks/vehicles whether you have a 2 inch, 2.5 inch, or 3 inch truck receiver size.  Does Not Matter.

Since our design is a true NO Splice: PLUG-N-PLAY installation that connects directly into the existing GM wiring plugs on the vehicle, then as long as you install this product as instructed, this product should NOT affect your vehicle's warranty in any way.  Having said that, when purchasing any aftermarket product for a vehicle, the issuer of the Warranty, (ie: GM) has the discretion as to the installation of any aftermarket product and how it may or may not affect any warranty.  However, GM created this tailgate problem issue and Tailgatefix.com has provided a high-quality solution to remedy it for all owners of these GM vehicles. We would be very surprised if GM would ever object to this being installed on these vehicles OR would allow the installation of it to affect your Warranty in any way.  They have to be delighted that Tailgatefix.com has provided The Fix to this problem.

Our Splitgate Override Switch is The BEST option to fix both the GMC MultiPro™ and  Chevrolet MultiFlex™ Tailgate issues for the following reasons:

• One Size Fits All -  Our Override Switch offers Simplicity in our One-Size-Fits-All design no matter what type of Truck or Hitch Receiver size you have  -vs-  competitor’s model which is limited, confusing, and requires a different size switch model depending upon the size of the truck’s receiver. Also, the competitor has NO option for a 3” receiver size - We Do.
• Competitor’s product DOES NOT work on 2022 & newer model GMC or Chevrolet Trucks 

                - BUT -  Our’s DOES work on 2022 & Newer model GMC or Chevrolet Trucks  !!

• Dual Tailgate Controls:  Our product allows the truck user to choose at any time to either control power to the Inner Gate  OR  control the power to the Main Gate whenever they want  - BUT -  Competitor’s product controls power ONLY to the Inner Gate !! (*) All TailgateFix Switch orders automatically include the Inner Gate wiring harness but the Main Gate wiring harness must be purchased separately with your Switch Order on the “SHOP” screen on the www.TailgateFix.com website. 
• Small Design Style - Our Override Switch has a small sleek design and is installed on the truck’s receiver in a way that makes it blend in with the truck and is hardly noticeable   -vs-   competitor’s model is Bulky and its placement and design may cause cumbersome “ease of use” issues with truck’s receiver;
• Solid Construction - Our Override Switch is made of strong anodized Aluminum & stainless steel (not plastic), has no moving plastic parts to break, and the interior switch components are further protected by a liquid rubber sealant making it rust-proof and waterproof   -vs-   competitor’s model is made of thin PLASTIC construction with moving plastic parts that can/will break, spring and screws that can rust, and overall will not withstand extreme weather and use conditions as ours will;
• Easy NO Splice Plug-n-Play Installation - TailgateFix’s Override Switch is a Plug-n-Play installation design and is easy to install. It simply plugs into the existing factory wiring in the truck’s tailgate.  It can be installed by anyone, no matter what your experience level may be, by simply following our easy Step-by-Step Installation Instructions. However, if you would like, you can take our Override Switch to any GM Dealership or Automotive Service Center and have it professionally installed for you in less than an hour installation time;

The adhesive bonding pad that we use to adhere the switch to the Truck’s receiver is strong Industrial strength 3M product that is designed to adhere to a steel or aluminum surface and hold very well in temperature climates from as low as -51 degrees to as high as +250 degrees.  The main thing is that when the Switch is 1st installed on the truck’s receiver, make sure that you do the following :  (1) thoroughly clean your truck’s receiver with an alcohol wipe and let it dry;    (2) IF you are in a colder climate area, use a heat gun or hairdryer to heat up the truck’s receiver surface to approx. 60 degrees before adhering the Override Switch to the receiver surface;  (3) make sure your hands are clean of any dirt or grease;  and  (4) make sure that once you remove the adhesive bonding pad’s protective cover that nothing comes in contact with the sticky portion of the adhesive bonding surface until it has adhered to the truck’s receiver.  Once it has properly adhered to the truck’s receiver, it has a very strong hold and will hold up nicely in basically all types of weather conditions and temperatures.

Some GMC or Chevrolet Truck owners with the MultiPro™ or Multi-Flex™ Tailgate may periodically experience an issue with their inner
tailgate not releasing when the main tailgate is lowered. (ie. when you push the inner tailgate button to open it the truck’s back lights flash
AND you hear a “click” sound but the inner tailgate will not open to drop down.) This is an existing issue that GM is aware of but it
is not something related to or that will be caused by the installation of our Override Switch. We suggest that if you are having this issue
then you should have GMC or Chevrolet look at your truck to correct this issue before installing our Override Switch.
However, After you have installed our Override Switch, if you notice that this issue is periodically occurring, below are (2) options as to
how you should be able to circumvent this problem to get the inner tailgate to open properly and at the same time be able to verify that
the issue is not being caused by our Override Switch and is actually the issue with the truck itself as described above :
1. Remove the hitch and hitch pin from your truck’s receiver. Raise the main tailgate to its upright closed position. Then, Press
and Release BOTH buttons on the tailgate at the same time. By doing this you should see both the main tailgate and the inner
tailgate open and lower down at the same time.
OR
2. Remove the hitch and hitch pin from your truck’s receiver. Lower the main tailgate and then lift up just a little bit on the inner
tailgate at the same time that you press and release the button to lower the inner tailgate. It should now lower as normal and not
stay closed and just produce the“click” sound.
AND THEN
3. Insert hitch and hitch pin back into truck’s receiver with our Override Switch installed. Lower the main tailgate and then press
and release the button to lower the inner tailgate. The inner tailgate should not lower down at this time and there should be NO
click sound heard. At this point, if you hear a click sound and see the truck’s tail lights flash and #1 or #2 above worked as
described, then, this confirms that our Override Switch is working properly and the issue is with the truck itself as detailed
above.
This GMC Multipro™ Tailgate issue is due to the factory wiring periodically not providing enough power to release the inner tailgate
and just results in the truck’s tail lights flashing and you hearing a “Click” sound which indicates that power is getting to the inner
tailgate but not enough to release the latch to drop down. When our Override Switch is working properly when the switch detects that
there is a hitch and hitch pin in the receiver of your truck, when you try to open the inner tailgate, the inner tailgate will NOT open
and there will be NO “click” sound. If you are experiencing this described problem with your GMC truck, with or without our
Override Switch installed on your truck, we would suggest that you take your truck to your GMC dealership to resolve this issue.
Here is a link that shows this problem with the inner tailgate being discussed by other GMC truck owners who do not yet own our
Override Switch : https://m.facebook.com/groups/277274859597876?view=permalink&id=362956804363014

If this is occurring, the 1st thing you need to check is the wire connection plugs that you made under the truck and in the tailgate at the time of installation.  Check to make sure that each of the plug connections is tightly snapped into place according to the installation instructions. 

Our Splitgate Override Switch ("Switch"), is constructed of strong components designed to be resistant to all exterior weather elements.  The Switch housing and bracket are made of strong anodized aluminum, with NO moving parts to break.  The interior components are sealed with liquid rubber to keep all moisture away from internal connections and parts. As an added point of protection, we even apply a final coating of clear silicone to the inside top of the switch housing where wiring exits and secure it to the top of the switch housing.  The wiring also has a solid exterior PVC jacket with two PVC insulated interior conductors.  The Switch is connected to the truck’s wiring with insulated moisture-proof Plug-n-Play connectors designed to match the existing vehicles factory wiring, altogether designed to help keep moisture and temperature from affecting reliability.