Remote kill switch

DodDel5-3-6L80e · May 8, 2026

I installed a remote control kill switch.
$35 on Amazon. Remote control 250ah negative battery disconnect.
It worked great Im amazed.
But then I thought- there is a potential for intermittent connection. Especially off roading. And although I've seen the inside of the remote switch on the computer, and it is pretty impressively built, I would rather not count on it for the full load.
I took it off of the battery and moved it to the fuse box. 12v off of the fuse box post and ground to chassis. Test- remote actuates the switch. My other 2 switch posts are 12v hot when on. I took another relay and pulled 12v off of 1 post on the switch and ground to chassis for the aux relay power. The other side of the aux relay- I removed the ECM/IGN fuse. I used that fuse in line with the 2 wires that I made to go directly in the fuse box ECM/IGN fuse port. I stripped a side of red wire crimps and smashed an end for the wires to land in the port perfectly. I did not want to piggyback this fuse because what the kill switch and relay are doing is essentially removing the fuse temporarily with ON/OFF using the remote control. Without having the kill switch disconnect neg at the battery, and breaking the path of a fuse instead prevents the stereo and ECU to reset, still has auxiliary power, but turn the key to start and nothing happens. Press ON on the remote- then power is there to start.
In short I installed a remote controlled kill switch in the truck and nobody will ever figure this one out.

pronstar · May 8, 2026

…or just pull a critical fuse, no one will figure that out either.

ReaperHWK · May 9, 2026

People steal these trucks? Never read of it being a huge problem unlike hellcats and Camaros.

RST Dana · May 10, 2026

DodDel5-3-6L80e said:
I installed a remote control kill switch.
$35 on Amazon. Remote control 250ah negative battery disconnect.
It worked great Im amazed.
But then I thought- there is a potential for intermittent connection. Especially off roading. And although I've seen the inside of the remote switch on the computer, and it is pretty impressively built, I would rather not count on it for the full load.
I took it off of the battery and moved it to the fuse box. 12v off of the fuse box post and ground to chassis. Test- remote actuates the switch. My other 2 switch posts are 12v hot when on. I took another relay and pulled 12v off of 1 post on the switch and ground to chassis for the aux relay power. The other side of the aux relay- I removed the ECM/IGN fuse. I used that fuse in line with the 2 wires that I made to go directly in the fuse box ECM/IGN fuse port. I stripped a side of red wire crimps and smashed an end for the wires to land in the port perfectly. I did not want to piggyback this fuse because what the kill switch and relay are doing is essentially removing the fuse temporarily with ON/OFF using the remote control. Without having the kill switch disconnect neg at the battery, and breaking the path of a fuse instead prevents the stereo and ECU to reset, still has auxiliary power, but turn the key to start and nothing happens. Press ON on the remote- then power is there to start.
In short I installed a remote controlled kill switch in the truck and nobody will ever figure this one out.

It will probably take them a few minutes at their remote location after they have snatched up your ride with a roll back or repo truck.

BigdawgR6 · May 11, 2026

ReaperHWK said:
People steal these trucks? Never read of it being a huge problem unlike hellcats and Camaros.

Not sure where you live but in Houston, TX it's a huge issue.

Jetskier77 · May 15, 2026

pronstar said:
…or just pull a critical fuse, no one will figure that out either.

Can you suggest a "critical" fuse to remove on the 2015-2020 platform? I had an easy one to pull on my older chevy pickup which just disabled the fuel pump... but I'm a little more timid about pulling fuses on this electrical monster.

pronstar · May 15, 2026

Jetskier77 said:
Can you suggest a "critical" fuse to remove on the 2015-2020 platform? I had an easy one to pull on my older chevy pickup which just disabled the fuel pump... but I'm a little more timid about pulling fuses on this electrical monster.

I don’t do it too often, but on our 2018 Suburban, an easy one to get to is 104 / starter relay, in the main engine compartment fuse box. The starter won’t even engage.

On my 2015 Silverado, fuse 51 (I think it’s the ECU) is an easy one that I use, it’ll turn over but won’t start.

I don’t know how much fuse-box variation there is on Tahoes and Subs, so you may have to experiment a bit…just don’t forget which one you remove and where it came from LOL

Roilux · May 26, 2026

ReaperHWK said:
People steal these trucks? Never read of it being a huge problem unlike hellcats and Camaros.

'01 Tahoe stolen and then recovered by a chance encounter with parking enforcement the next day in Los Angeles. Three more unsuccessful attempts to steal within three years after that. A brake pedal lock proved to be undefeated when used after the first theft. Driver's door lock was popped each time to get inside. :fca5278d:

ReaperHWK · May 27, 2026

Roilux said:
'01 Tahoe stolen and then recovered by a chance encounter with parking enforcement the next day in Los Angeles. Three more unsuccessful attempts to steal within three years after that. A brake pedal lock proved to be undefeated when used after the first theft. Driver's door lock was popped each time to get inside.

Yeah I hear ya. That sounds like more of a joy ride and theft of convenience. It’s like the guys steeling 90’s civics. They aren’t worth any money they do it for fun or for some crack.

I’m was more talking about targeting theft of high value cars. You know the guys who boost them and load them into shipping containers that show up in the Middle East.

Stuff like this:

When hellcats were in production I know my local dealer had one stolen right off the lot, the thieves make the keys right there. They actually have all the dealer tools to make new keys in the spot. After that all hellcats had to stay inside the bays.

Those are/were high theft vehicles because organized groups and chop shops targeted them. The drivetrain alone is 30k after it’s chopped up.

I don’t see this for a Tahoe.

JoeBlobs · May 27, 2026

RST Dana said:
It will probably take them a few minutes at their remote location after they have snatched up your ride with a roll back or repo truck.

pronstar · May 27, 2026

ReaperHWK said:
Those are/were high theft vehicles because organized groups and chop shops targeted them. The drivetrain alone is 30k after it’s chopped up.

I don’t see this for a Tahoe.

There’s a few ways of looking at vehicle thefts.

One way is for high-value l/high-demand vehicles.

Another way is for replacement parts. Vehicles that sell in large numbers, will see an uptick in thefts at the 3-5 year mark after they first go on sale.

So top-stolen vehicles typically mimic top selling new vehicles: Silverado, Camry, Accord, F150 etc.

Tahoes and the like may not be Top 10 most stolen, but they’re stolen at a high rate compared to other large SUVs that they compete with.

Remote kill switch

DodDel5-3-6L80e

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