I am a auto tech and there are a few others on here that may chime in as well. It's not a easy job and there is a lot of stupid crap you have to do but overall it is a good job with good pay and benefits. Right now the top rate in my area is just under 37 a hour and it's a 2 year progression. I think it starts out at 23 or 24 or something like that. Some shops are IAM and others are IBT, the IAM pension is better other than that I think the benefits are the same.
You will be working at night for a LONG time, in my hub it takes about 20 years to get days but you never know you may get lucky. Personally I dont mind working at night so it's not a issue for me.
Your going to get a lot of wise ass answers on here because it's mostly drivers that don't know all the crap we have to do and how little time we have to fix their heat, hard to open door, mirrors that fold in at 100 MPH on the highway ETC.. Plus people on here like to bust balls, that's part of the culture at UPS. If you can't handle being told you suck and are thin skinned then this is not the place for you.
I personally have not heard of a tech being fired in my area but I am sure it has happened. This is a union job but if you steal or lying there is not much the union can do for you.
I’d stay away from a fleet maintence mechanic career going by what my mechanics say. Unlike a dealership or independent auto shop, you’re working on the companies vehicles. They are the ones paying for the repairs so the parts and time needed to correctly fix problems are under scrutiny and cost cutting is rampant. Everything from no OT hours to doing cost cutting on actual parts needed is under pressure.
As a dealer or independent mechanic, the customer isn’t your employer, and as such, isn’t under the pressure to cut corners.
Yeah, your only pressured to steal from the customer and upsell

that the customer don't need.
I did 15 years of that

. No thanks! plus no pension and once you get a little older and slower they tell you to GTFO. I saw that happen to better techs that I so I saw the light and went fleet before I got old