1bdvet

It's 2013, sat for two months, and went to start, battery dead, replaced battery, still won't start.
The brake pedal moves but is hard, and still won't start, anybody have any idea's.
Thanks.

amlarson2001

we are going to need more info. does it sound like it turns over normal but just wont start?

1bdvet

You push the start buttons, and nothing, and the DIC has no message.

wayback

Might be a bad battery or bad connection. Check at battery and starter. Might also check ground. GL

I had a new battery that the neg cable clamp would not tighten unless I pushed it down very hard.

ruxvette

Plus year, auto/man, etc...
At least put a volt meter on the battery terminals and then the clamps to make sure the battery has power and it is getting to the clamps. You did tighten the clamps with the proper cone nuts????

1bdvet

It'a automatic and yes the terminal are clean, battery was tested at time of purchase, everything in the car works, BUT it doesn't want to do anything when stepping on the brake and pushing the start button.

Don-Vette

Do you have the fob with you when you try it? Lol

ruxvette

2005?
Sounds like the brake safety switch may be toast.

08 ATOMIC-Z

The battery might be new but doesn't have over 12.5 volts needed to start the car. These cars are real picky about voltage. If you have a tender put it on the car, give it an hour or two or you could jump start the car. After that it should be fine as the correct voltage will be in the battery after a twenty minute ride. Also check the negative battery cable connection and ensure it is tight.

Ensure your fob battery is good also. Try starting the car with the fob in the glove box slot.

extrapilot

This or the switch is just sticky and not releasing to enable the start circuit to be satisfied.
The brake pedal is hard to press because of the lost vacuum at the booster. It maybe a matter of more force is needed on the brake pedal in order to activate the brake safety switch.

BlindSpot

This.

extrapilot

A couple of other things to consider. The trans neutral safety switch, make sure the car is in park positively, or maybe try putting it in neutral.
The brake position sensor might be used as a safety switch also, and if it is, they have been known to loose it's syn with the control module, needing re-calibration.

C4SMAJ

not sure if this will help but...I had the same problem yesterday...battery died a few days ago so took it out and got around to getting a new battery yesterday...same result as your...everything works but no green button to start it..... tried everything....finaly got out of the car...closed the door pushed lock button...waited a few seconds and pushed the unlock button....got in the car stepped on the brake pedal...had a green lite pushed it and viola it fired....worth a try...btw this was on a 13 GS with auto....

1bdvet

Yesterday had the car towed to stealership, let them make it run.

Will report back on results, car still has aftermarket warranty.

1bdvet

The results are in, the starter took dump!

PA_BLUE_C6

Time for a RIDE!!!!!