I recently got my tranny replaced, and upon getting the car back I noticed that the car beeps 25 times once you turn the key. Was curious if anyone knows what this might be?
Here's a video for reference:
I thought it was the seatbelt maybe so I buckled up before starting the car. No dice. I also want to note that the beeping only begins when starting the car, doesn't do it in just the run position.
It's driving me nuts! Any clues would be great.
I counted 25 beeps. I can confirm your problem
Seriously, I have no idea why it's doing that. Have you pursued it with the the transmission shop? It may not help, but I think they need to be in the loop.
Looking at the video, I didn't see any unusual warning lights. But I'm wondering if there are any codes. You might get it scanned.
I can think of all sorts of wild guesses, from bad ignition switch to user setting (such as selecting one beep or two when locking the car with the fob). But I can't recall ever seeing one for "25 beeps when starting"
One thought that keeps coming back is that it is indeed some sort of warning or status indicator. For example, I seem to recall that, on some vehicles, the MIL/CEL codes can be read by counting beeps or light flashes. But that's a vague notion, and may be a bum steer.
Besides posting on Chevy/GM forums, another place to check is the dealership. Go in and speak with a service writer, and ask if they're familiar with this anomaly. You might go to two or three places. But, if it's a known condition, somebody ought to be able to tell you about it without you paying a 100 dollar diagnostic fee first.
That said, I see you're posting in the B-body sub-forum, so your car is likely more than 20 years old - the service writers may not be up to speed on it.
Have you inspected the transmission to see if maybe there's a cable left unplugged? With a car of that vintage, the transmission may work just fine without it, but maybe the body computer is trying to alert the open connection.