both blinkers blinking after big bump

Did you check the inertia switch? On a D2, it's mounted on the passenger side firewall.

Cycle the ignition switch a couple of times. That's a preliminary airbag deployment warning.

That's "normal". This is the first stage of the crash sensor activation--unlock the doors and turn on the hazards. to turn them off, put the truck in park, shut it off, and remove the key. then restart the truck and the hazards will turn off. stage two is hazards, door locks, plus fuel pump cut out. stage three is all of the above, plus airbag deployment.

stage two and three are genuine safety features. stage one is annoying as hell. anyone know how to disable?

Impact

Annoying, indeed.....

It isn't the inertia switch, 'cause that kills the fuel pump and the vehicle won't run. When my hazards came on after hitting a pothole - and curiously, they have *never* come on with much harder 'hits' off-road - I even traced the relay that was actually cycling the blinkers. Removed that, but even that didn't silence the situation when it was re-installed.

It was only through pure luck and happenstance that I realized that some sequence of key off, open door, close door, start and repeat would shut the damn thing up.

Annoying, but normal operation.....

Cheers

That happened to me a few times and confused me very much, BUT mine hasn't done that since I've changed from stock setup... and I know I've taken much harder hits! Weird.

Normal, I hit a deer with my 97 it did the same thing. Just cycle the ignition or if it tripped the inertia switch which you would know because no fuel would be able to get to the engine.

Bang the rear bumper on a nice ledge and it'll do the same thing. It's so funny when it happens to people on the trail. I have to laugh, because they didn't anticipate the drop and came down a little to hard.

I always wondered why D1's hazards were coming on. People have asked me why their truck was doing it and I never knew what to tell them.

I was on a dealer ride once and I was bringing up the rear for them since they had sold there "off road" truck and the guy in front of me was having a bad day I guess. His truck overheated and then he popped the sidewall on his tire and his spare was almost flat. And he beat his front and rear bumpers to hell and almost sent the truck off a rocky cliff and it would of rolled for a while but he hit the gas at the right time and the truck got traction back. And near the end of the ride he came down on something extremely hard and then he could not get his hazards to go off. I came over and was just like... um, maybe the switch is stuck or something... but I really had no idea (lol). But then I walked off and I guess he finally turned the truck off and they stopped. But I never know why it did that. But I really never cared either, I was having my own problems and was really pissed off buy that time.

I guess I learned something tonight.