theRog05
Full Member
Good afternoon everyone,
First off, I've done lots of research on this issue and still don't have it solved so I figured it was time to write a post to see if I could get closer to a solution.
I test drove my 2004 Avalanche and everything was fine; no messages or lights on. I decided to purchase the truck from the private owner and he delivered it to me. My wife made the actual purchase as I wasn't home at the time. I got the truck registered and went to drive it and noticed the "Service Brake Booster" message on the dash. It won't go away and none of the steering wheel buttons do anything other than the ones for volume and changing the radio. But, when I test drove the truck, the buttons for sure worked. So, currently I cannot see the odometer reading because the buttons aren't working and the "Service Brake Booster" message won't go away.
I read that having the wrong size alternator could cause this issue, I know this is not the case because I looked up which alternator should be installed in my truck and verified the model of the one that is installed.
Some people say to check the brake fluid, but I believe that is for a "Service Brake System" message and not "Service Brake Booster", but my fluid level is at the max fill line like it should be.
Another thing I read is that if the seller had swapped clusters without reprogramming the "new" one, it could show this message. The truck has a hydroboost setup (which I velieve came with most models of Avalanche) and not a brake booster. I'm not sure if the "Service Brake Booster" message is specific to having a brake booster over a hydroboost or not?
I've called multiple dealers, and none of them seem to have ever heard about this issue. And they want to charge me $100 to diagnose and $85 to reprogram. But I would hate to take it to the dealer and they reprogram it, and it doesn't fix the problem. I always work on my own vehicles; the only thing I don't do is mount/balance tires and alignments because I don't have the machines to do so. I hate giving my vehicle to someone else to work on because you never know if it's done right, so you can see why I may have hesitation to take it to a dealer.
Anyways, I'm not finding much information out there about reprogramming it myself, so I may have to just bite the bullet and take it in to have them do so. But I wanted to see if anyone else out there had a similar issue that they resolved. Any information would be helpful at this point.
Thank you!
First off, I've done lots of research on this issue and still don't have it solved so I figured it was time to write a post to see if I could get closer to a solution.
I test drove my 2004 Avalanche and everything was fine; no messages or lights on. I decided to purchase the truck from the private owner and he delivered it to me. My wife made the actual purchase as I wasn't home at the time. I got the truck registered and went to drive it and noticed the "Service Brake Booster" message on the dash. It won't go away and none of the steering wheel buttons do anything other than the ones for volume and changing the radio. But, when I test drove the truck, the buttons for sure worked. So, currently I cannot see the odometer reading because the buttons aren't working and the "Service Brake Booster" message won't go away.
I read that having the wrong size alternator could cause this issue, I know this is not the case because I looked up which alternator should be installed in my truck and verified the model of the one that is installed.
Some people say to check the brake fluid, but I believe that is for a "Service Brake System" message and not "Service Brake Booster", but my fluid level is at the max fill line like it should be.
Another thing I read is that if the seller had swapped clusters without reprogramming the "new" one, it could show this message. The truck has a hydroboost setup (which I velieve came with most models of Avalanche) and not a brake booster. I'm not sure if the "Service Brake Booster" message is specific to having a brake booster over a hydroboost or not?
I've called multiple dealers, and none of them seem to have ever heard about this issue. And they want to charge me $100 to diagnose and $85 to reprogram. But I would hate to take it to the dealer and they reprogram it, and it doesn't fix the problem. I always work on my own vehicles; the only thing I don't do is mount/balance tires and alignments because I don't have the machines to do so. I hate giving my vehicle to someone else to work on because you never know if it's done right, so you can see why I may have hesitation to take it to a dealer.
Anyways, I'm not finding much information out there about reprogramming it myself, so I may have to just bite the bullet and take it in to have them do so. But I wanted to see if anyone else out there had a similar issue that they resolved. Any information would be helpful at this point.
Thank you!