[Blasirl]

I have read a number of posts and there is a lot of anecdotal evidence, but nothing official. Does anyone have a way to find the official GM numbers for the two different levels of tint from the factory?

Is there an RPO code?

I did find a decent website that gives the current tint laws for each state: Tintlaws

 

[Tomko]

The darker is 40%. It's called glass, deep-tinted. RPO AKO

I'm pretty sure the lighter is termed 70% minimum. It's called glass, solar absorbing. RPO AKP

Those codes are from the trucks - I presume they carry over to the passenger vehicles.

 

[Blasirl]

The darker is 40%. It's called glass, deep-tinted. RPO AKO

I'm pretty sure the lighter is termed 70% minimum. It's called glass, solar absorbing. RPO AKP

Those codes are from the trucks - I presume they carry over to the passenger vehicles.

Using the information you gave me I was able to find these on a 2016 Cruze Fleet ordering website:

AKP Glass, solar absorbing
AKX Windshield, solar absorbing

 

[Blasirl]

I also found this although it is for 2013.

TSB PIT3237G: Information on Glass Ultra Violet UV Ray Protection and Tint Percentage (Oct 1, 2013)


It says the windshields and front door glass are SOLAR glass and have a VLT of greater than or equal to 70% (means 70% of light shines through) and the rear door, quarter and back window glass are either SOLAR and have a VLT of greater than or equal to 70% or are PRIVACY and have VLT of 20% nominal.

So if the same holds true for later models then I have my answer, but until then...

EDIT: New link - TSB PIT3237G

 

[Cruzen Vegas]

YA the front Windshield is 70%...I Tinited it with some 80% just to help keep the heat out...

 

[Blasirl]

From my car:

Front Passenger window

Rear Passenger window

Now that I look at them , it seams as if my windows are all the same. Doesn't look like it from where I'm standing though. I'll have to take a few more pics of the other glass after it stops raining to see.

Edit:

Found that DOT 747 means that the manufacturer is FUYAO GROUP SHANGHAI CO., LTD. SHANGHAI CHINA (I used this website)

The M540 is a model number for the piece of glass, which identifies the type of construction. The M number is unique to the manufacturer, so one an M number of M312 by one manufacturer could be different than glass labeled as M312 by another manufacturer. It identifies the glass construction, including the color and thickness. An M number may be used by multiple part numbers.

The AS in AS2 stands for American Standard, followed by a number indicating the position in which the glass may be used, based on its optical quality. AS1 is the clearest glass (at least 70% light transmission), is laminated, and can be used anywhere in a motor vehicle (typically just the windshield), AS2 is tempered with at least 70% light transmissions, and can be used anywhere except the windshield, and AS3 can be used in certain locations in certain vehicles (and can be laminated or tempered, and has less than 70% light transmission). There are higher numbers used for other purposes, but are not normally encountered in cars. This number must be near the manufacturer’s name/logo, preferably below it (per Z26.1996).

The 43R number implies Conformity with the European standard of safety ECE R43.

The E4 in a circle means that the Netherlands approved it for use in their country and because there is no roman Numerals above this code it further signifies that it is a Non-windshield with tinting less than 70%

The CCC and the E000199 number means Conformity with the Chinese standard of safety CCC E000199/E000039.

The .3 decodes as follows: Number, month and year of manufacturing: the figure with points designates year, the sum of points to figure – month of manufacturing, the sum of points after figure – month of manufacturing + 6.
I am guessing based on this that the front was manufactured in Jan 2013 and the rear in Feb 2013.