Push to Start Issue - RF Hub?

[jbuck55]

2021 Bighorn Night Edition with 47,500 miles. Just a few minutes ago went to crank her up and nothing. Just the dash display saying to Push brake and start. I stepped outside of the truck and then used the remote start and she fired right up. However, when I tried to hit the Push button to engage the rest of the truck.......nothing. The only way to turn it off was to hit the remote start again. I am not sure if this is a RF Hub issue because I can crank it with the fob. My wife thinks the Push start has gone out but damn, after only 47,500 miles? Before I have to have this big ol baby towed to a repair shop I thought I would ask the experts here what they thought. I am all eyes and look forward to any helpful replies.

 

[papap]

Get your battery check. I know it sounds silly but I know someone this happened to and it was the battery.

 

[jbuck55]

Get your battery check. I know it sounds silly but I know someone this happened to and it was the battery.

So I went to try it again and it fired up......drove around the block and then back in the driveway and I couldn't shut it off with the push button. It idled for about 5- 8 minutes while I was getting my tools to disconnect the battery and I tried it once more to turn off and it did. But refuses to crank again. I will take out the battery first thing tomorrow and get it checked at Autozone. I am really hoping this is it and thank you so much for your replay. I sincerely hope it is the silly battery.

 

[FastBlackRam]

I hope it is your battery, but it could still be your RF Hub. They don't always catastrophically fail. Sometimes it is intermittent. Assuming you checked your FOB batteries? Or saw same behavior from both your FOBs? My issue was a catastrophic RF Hub failure but even with that it did fire up for a minute during all my tinkering. But it also shut back off on its own. I couldn't even unlock the doors with mine. And when I used the key in the door slot it set off my alarm which I couldn't stop except by disconnecting the battery. I had to have mine towed to the dealer which was diagnosed within minutes as the RF Hub. Luckily I had a warranty and it was covered. Let us know the result.

 

[jbuck55]

I hope it is your battery, but it could still be your RF Hub. They don't always catastrophically fail. Sometimes it is intermittent. Assuming you checked your FOB batteries? Or saw same behavior from both your FOBs? My issue was a catastrophic RF Hub failure but even with that it did fire up for a minute during all my tinkering. But it also shut back off on its own. I couldn't even unlock the doors with mine. And when I used the key in the door slot it set off my alarm which I couldn't stop except by disconnecting the battery. I had to have mine towed to the dealer which was diagnosed within minutes as the RF Hub. Luckily I had a warranty and it was covered. Let us know the result.

The FOB will crank it remotely. I plan to replace my FOB Battery this morning as soon as a Autozone opens as I was told that the Fob should start the truck if I hold it to the push start button and that does not happen. I CAN lock and unlock the doors with the fob as well.

 

[mikeru82]

I doubt it's the RF hub if you can remote start it with the fob. That's the main purpose of the RF Hub after all. I suspect your wife is correct and the push button is failing. It's an inexpensive item and is simple to replace yourself. I'd try that before messing with the battery even, but it won't hurt to test the battery if it's the original one.