Alldatadiy.com is the online versions of the real GM/Cadillac/Helm service and repair manuals, where available for online viewing. Your 2012 should be supported. For price comparisons with the same issue paper hard copies look at www.helminc.com.

Regardless of the source - GM Helm, Haynes, Alldata - you won't find many actual bolt sizes but if you dig into the specs and diagnostics sections in Alldata you get to some sizes and all torque values.

Alldata also incorporates tables of DTC - Diagnostic Trouble Code - links. Click on a code and you get pages of system descriptions and repair/troubleshooting procedures.

The multi-year deals are well worth the price. I have 3 subscriptions for 3 different vehicles - the STS, an Explorer, and 2 F-150s.

 

I was a heavy user of Alldata and I did tons of work on my '10 CTS. Always found it had everything I needed.

 

Was...so you just have new cars and let the dealer fix everything under warranty, eh?

 

Only blem wit is when you break down out of range (not as common now).

 

I use Chilton Manual, for FREE on my computer on my desk from the Library.
I can go on and put in the make and model year, and then pick what I want to fix. Like the control arm.
You don't have info like AWD or upper or lower so I don't know what you are doing.

Now please remember these manuals are NOT trying to teach you how to become a good mechanic.
They are to inform a good mechanic on how to replace or diagnose a car.
It will show you the torque value of the fastener but it's on another page.

see how to use the repair manual.

 

Sounds like overall it will be worth the subscription then, I may start with a month and go from there.

You don't have info like AWD or upper or lower so I don't know what you are doing.

AWD, front, upper and lower. Passenger side front is creaking, can't if it is lower or upper, but with 125k on it, I figure if I am replacing one, I may as well do both sides upper and lower.