It appears you’re encountering an issue with your Chevy’s automatic windows, specifically regarding the “express up and down” feature after potential battery disconnection or window motor service. You’re likely wondering, can Chevy automatic car windows be programmed, or more accurately, normalized to restore these functions? Let’s delve into this process, drawing from general knowledge of vehicle systems and the information you’ve found regarding a Gen 1 factory service manual.
Your research from a Gen 1 service manual highlights a procedure called “Window Motor Normalisation.” This process is crucial when the express function of your power windows stops working. This can commonly occur after:
- Disconnecting a window motor
- Disconnecting a door harness
- Battery disconnection or replacement
Alt: Interior view of a Chevy Volt highlighting the power window switches, relevant to Chevy window programming and normalization procedures.
The manual you referenced also notes specific Diagnostic Trouble Codes (DTCs), B3205 4B and B3210 4B, that signal the need for window normalization. These codes are often accompanied by warnings on the driver information center, such as “Open, then Close Driver Window” and “Open, then Close Passenger Window.” These warnings should clear once the windows are successfully normalized.
The Gen 1 normalization procedure you found involves these steps, performed with the vehicle in “Service Mode”:
- Vehicle in Service Mode. (This is the point of uncertainty for Gen 2 Volt, as you noted.)
- Starting with the window completely UP, press and hold the power window switch DOWN until the window is fully open, and continue holding for about 5 seconds.
- Pull the power window switch UP until the window is fully closed, and continue holding UP for about 5 seconds after it’s closed.
This procedure aims to reset and relearn the window motor positions, restoring the express up and down functionality.
The crucial missing piece for your Gen 2 Chevy Volt is indeed how to enter “Service Mode.” While the Gen 1 procedure provides a general approach to window normalization, the specific method to activate “Service Mode” can vary between vehicle generations and models.
To find the correct method for your Gen 2 Chevy Volt “Service Mode,” consulting your Gen 2 Chevy Volt owner’s manual or a Gen 2 specific service manual is highly recommended. These resources will provide precise instructions tailored to your vehicle. Online Chevy Volt forums and communities could also offer insights from other owners who have encountered and resolved this issue.
In conclusion, yes, Chevy automatic car windows can be programmed or normalized to restore their express functions. The general procedure involves switch manipulations after entering “Service Mode.” However, the exact steps for accessing “Service Mode” on your Gen 2 Chevy Volt require specific documentation for your vehicle model. Locating this information is the key to successfully normalizing your windows and resolving the issue.
