2007 Pontiac Grand Prix Sedan.3.8L?
Tried key codes for 2 hrs.
Question = I bought the key and they gave me the codes, key in 10
minutes, off 20 seconds x 3 then try to start. Every time I did it
another light would turn on the dash, then it started making clicking
sounds in the glove box. But still would not start. I did it again and the
lights started flashing outside, a message talking about the battery
saving failed, charging failed, and the TC flashed as well as abs and
other things but it still would not start and the lights were still flashing.
How do I correct this problem and get my key and car to start!???
Answer: First of all, you've probably run your battery dead or too low
to continue the theft learn process. You need have a battery charger
or jump box hooked up while you do this 30 minute procedure to
make sure you don't lose power. I would give it one more try with a
charger hooked up and if it still won't start, you obviously have
another issue going on. You could have more bad than just the key,
such as an ignition cylinder and/or passlock sensor. You state that
you have warning lights on, but no trouble codes. If there are lights on
the dash, then you do have codes stored somewhere. A regular
scanner can't tell you what codes are stored anywhere else except
the engine computer. You definitely have theft deterrent codes in the
Body Control Module by now with all the trying you've been doing.
You'll need those retrieved to help diagnose what the problem is. You
are probably going to have to take the car to a GM dealer for proper
diagnosis and re-learning of the theft system.