2009 HHR doors lock immediately after unlocking. After you unlock the doors they lock again almost immediately. Doors lock and horn blows and car symbol with key lock appears What to do?

SOURCE: 1999 volkswagen passat car alarm factory installed system

Do you have a key fob? Unlock the car with that and you should be OK. My sons Elantra is the same way, you can only get in with the fob. I guess the car thinks it's being stolen otherwise. If you don't have a fob, I'm no help

SOURCE: Chevrolet HHR 2009 when doors locked the fuel tank cap does not.

Take it to your dealer, and demand they fix it.
Seriously, 2009 you should be WELL within your warranty period, unless you commute from Washington DC to Dallas Texas.

One POSSIBLE issue is, aftermarket locking gas caps are sometimes too tall for the door, and prevent it's complete closure. Second issue may be a bad connector on your gas-door locking solenoid.
Finally(and i don't knwo for sure, since mine is NOT a 2009) when you finish filling your tank, did you press the door back into the latched position? If not, then the lock solenoid will actually PREVENT the latching and proper closure from taking place.

Check the gas door for signs of damage in the sheet metal near where the lock engages. to rule this out. With the door latched shut, lock the doors, and set the alarm. Now check with a credit card, or other thin plastic piece, to see if the locking solenoid is "out". If not, that is definitely your issue, and needs to be replaced.

SOURCE: key turns, doors lock, then unlock immediately (peugeot 309).

alarm is shorting out

danoyachtcap

• 2907 Answers
• Posted on Jul 29, 2011

SOURCE: Have a 2006 chevy hhr

There is a manual release on the inside of the hatch door.
Somewhere in the center of the door under an oval cover plate you can open it with a screwdriver.

SOURCE: Horn blows when locking/unlocking doors on 2007 avalon

Alarm is programable. May have to take to dealer or possible after market shop. When battery power was lost it lost memory.