Help My Hummer is Possessed!

[Peep]

OK here are the symptoms.

Installed my new OBD11 reader and read my errors for the first time. When I went to take the key out is is stuck. Their is no power in the truck and on the display when turning the key it shows in "red" what looks like a red lock over a key. The key will not come out. Have the battery cable off now and still nothing. Before I took the battery cable off, nothing works. Even the remotes.

Aomw aort of security protocall?

Help, my Hummer is ignoring me!

 

[SolidusJ]

I think you'll be fine, I discounted my battery last night and put in the key and it was lock in. 45 min latter I went and plug the battery and was able to take out the key.

 

[frumaker]

That sounds like the passlock crap that happens. I know I needed a new ignition when that happened to me


FRU

 

[Cortinas316]

That sounds like the passlock crap that happens. I know I needed a new ignition when that happened to me


FRU

Same here...was about 150 bucks.

 

[alrock]

If the key won't come out I suspect that you have a dead battery. Try a new battery or jumping it first. The passlock issue will allow you to still remove the key, but a dead battery won't.

The battery could be "broken", not just discharged, which is why nothing works. It can be sudden especially in a hot climate.

 

[derian06]

If the key won't come out I suspect that you have a dead battery. Try a new battery or jumping it first. The passlock issue will allow you to still remove the key, but a dead battery won't.

The battery could be "broken", not just discharged, which is why nothing works. It can be sudden especially in a hot climate.

X2 I would find some jumper cables first.

 

[Best4x4]

And as always with an H3 check the battery terminals.

 

[Peep]

OK, got a battery charger on. It says its 53% finished charging when connected. So I will leave it and see. The battery was new 5 years ago. Monsooning out side right now so can't do much thill the rain slows down.

 

[Peep]

Holly under voltage Batman!

Your right. After 45 min, reconnected battery terminal, used the key and it locked it up agian. Put a meter to the battery and its 9.7 volts. Charged it for 8 hours, charger said its 100% charged. Tried the key again.....it locked the key again. Remeasured the battery and its 10.2 volts! Now that's battery #2. the jungle just kills batteries here.

 

[Peep]

Does anyone have the battery CCA and group # for a H3 I5 3.5. I'm lacking big stores here lol

 

[Ghostbuster]

group size 86

CCA 650+

 

[Best4x4]

Group 86 OEM, but both of my H3's are running Group 34 batteries with much higher CCA's. Alpha has a 900AMP Diehard Platinum, and my Adventure has a 1000AMP Red Top Optima. All I had to do was cut a few fins out of the lower box. I tossed the lids as they trap more heat here in TX vs help. Both my H3's now start stronger and faster vs the OEM setup.

 

[Cortinas316]

Group 86 OEM, but both of my H3's are running Group 34 batteries with much higher CCA's. Alpha has a 900AMP Diehard Platinum, and my Adventure has a 1000AMP Red Top Optima. All I had to do was cut a few fins out of the lower box. I tossed the lids as they trap more heat here in TX vs help. Both my H3's now start stronger and faster vs the OEM setup.

NICE TIP! I'm in San Antonio with a red top and I'm gonna do this! Thanks!

 

[Best4x4]

No problem :thumbs:

 

[Peep]

What is a red top?
Is that a AGM or GEL battery?