Hello all... had the base radio replaced in my 05 Cobalt base coupe maybe a month or so ago. I was assured that this new radio would cure all my LOCKED woes. All has been sweetness and light until today. Three times, the radio locked on me.

I have a sense of humor about it... the dealership did not.
They have no idea what they want to do next.

Scott

 

my best soulution /\ hope all gose well im not sure how to unlock the factory radio if it is factory but could check on it

 

Probley a power issue. If the radio loses power it will lock cause it thinks its being stolen.

 

get an aftermarket radio, problem solved.

 

Does the radio they replaced it with look exactly like the old one?

When we had this problem with the 05 base, the radio they replaced it with was an uplevel model with chrome trimmed buttons as per the TSB instructions.

 

it looked just like the last one... i asked them if they would put a different one in and the said that was impossible... it had to be a direct swap.

Scott

 

Here, have a look at this thread. I posted the TSB information on it.

https://www.cobaltss.net/forums/problems-service-maintenance-69/ive-had-radio-16801/

 

The radio that was put in my car was a UM8... I'm thinking that as much as I don't want to start frogging around, that an aftermarket radio is in my future.

Scott

 

after reading that link....if i take my car with the stock factory unit and tell them sometimes it says locked when i start the car they have to give me the unit that plays mp3s??? is that correct???

 

They have to be able to duplicate the problem.

 

exactly.
if it's intermittent, then the chances of them replacing the radio are slim. My brother had borrowed my car and had the radio lock on him. He works at the dealership I got to for service, so he knows the car. Problem was solved.

Scott

 

Let your dealership know that there is a problem with the cobalt radios, tell them to look for bulletins. There is a bulletin that has a revised part number for the radio. If they order the same part number in the car ur going to have the same problems, tell them to check for the new part number in their service bulletins. Also if you let your battery die, you are going to have that problem.