Momentary strangeness after disconnecting the battery

[eatSleepWoof]

While working on relocating some custom electrical today I had disconnected the battery at both terminals. I had the LX unlocked, and the rear hatch open.

After reconnecting everything, I started the car up, and it promptly died a few seconds after starting. Battery light was on, engine light was on, accessories were on, and the entertainment display showed a loading screen of sorts with a message asking to not shut off power. I waited until the progress bar finished and normal options showed up, and then hit the starter button again. Started up and continued running without a problem.

I then tried to close the rear hatch, and instead of having the hatch close, I heard two quick beeps, with nothing else happening. Same thing happened if I stepped out and used the button on the hatch itself, and on the remote. After closing the hatch by hand, it started working fine via all normal methods.

I'm assuming that the extended battery disconnection was the cause of both "issues?" Can't quite explain the former, but for the latter, I'm guessing the LX lost the "position" of the gate (open/closed), and that had to be "reset" by manual closing?

Anyone else run into these issues?

 

[Markuson]

Any time I fully disconnect my batteries, it takes two tries to start.

Always found this strange, but it always does this.
As for the hatch thing? No idea as I don't have an automatic hatch opener...but the double-start thing is a normal part of my battery-reconnect routine on my 2008 LC.

 

[tbisaacs]

+1 as markuson. After a disconnect my truck sputters on first start.

 

[Markuson]

+1 as markuson. After a disconnect my truck sputters on first start.

I can’t say for sure, but I think it’s by design...As though it is, perhaps, quickly making sure of full connection before actually running the engine. Mine doesn’t sputter at all. -Just runs the starter once and then stops...followed always by a normal start on #2.

 

[supercarrera]

I just read in the owner's manual the other day that when you disconnect the battery with the rear hatch open, you need to initialize the rear hatch after connecting the battery again.

 

[KLF]

Yup, I've had the same behavior when restarting after having the battery disconnected, totally normal.

The hatch thing is probably just a "first time" re-calibration. The windows and sunroof will do something similar.

 

[eatSleepWoof]

Glad to hear this is all normal!