[jhildenbrand]

I've found a few good threads on replacing the window regulator/motor - including some detailed video. What I can't figure out is exactly what part I need to order for my 2014 Volt. I almost pulled the trigger on Amazon for a Dorman unit (which has a matching OEM # as found on other sites). I've purchased items from GMPartsDirect.com before, so I looked there as well. It was at that site where I saw there were 2 different parts for my car. "1st Design" & "2nd Design", as defined in links below.

I'm looking for my front passenger window. I almost purchased the first one shown below, until I saw the second one. I'm not as brave as some people here - was going to have my mechanic do it. They struggled, as I did, to figure out what the difference was. No clear pictures of 2nd Design OR description. In fact, my mechanical called a local Chevrolet dealer; gave my VIN #, etc. They even asked if my window had 'tabs'. He couldn't explain what that was & my mechanic didn't know either. I've got an email out to GMPartsDirect as well. So we are stumped.

See links / part numbers below. Any advice would be greatly appreciated.

1ST DESIGN (Part #25994200):
gmpartsdirect.com/oem-parts/gm-window-regulator-25994200/?c=Zz1ib2R5JnM9Z2xhc3MtZnJvbnQtZG9vciZhPWNoZXZyb2xldCZvPXZvbHQmeT0yMDE0JnQ9YmFzZSZlPTEtNGwtbDQtZWxlY3RyaWMtZ2Fz

2ND DESIGN (Part #23146836):
gmpartsdirect.com/oem-parts/gm-window-regulator-23146836/?c=Zz1lbGVjdHJpY2FsJnM9ZnJvbnQtZG9vciZhPWNoZXZyb2xldCZvPXZvbHQmeT0yMDE0JnQ9YmFzZSZlPTEtNGwtbDQtZWxlY3RyaWMtZ2Fz

Thanks very much,

Joe Hildenbrand
2014 Volt Premier

 

[freshcut]

I can't speak for the design differences but I actually just replaced my drivers door regulator about a week ago and the process is insanely simple. I think from start to finish it took me 20-30 minutes and that included a short break to grab something to drink.

As for "tabs" on the window, the only thing I can conclude is that they're referring to the pinch points where the regulator attaches to the window perhaps? There are a couple of rubber coated grips at the front and rear of the window that physically attach to the regulator and are pinched down with a bolt rather than the old style where the window had a hole for the regulator to attach to.

 

[lepgmvolt]

I just went through this little nightmare, so for clarity, some 2014-2015 Volts FRONT passenger side had two possible window regulator designs where the motor connector differs. GM part # 23146836 is only for the motor connector with guide/rail tabs (aka outrigger tabs) on opposite sides of the connector. I've highlighted the outrigger tabs below:

 

[Chevy262]

Just wanted to post to provide a solution update to this plug problem, the issue being that the new window regulator has a different plug from the old regulator.

I bought the Dorman 751-576 window regulator to fix the front passenger window on my 2014 Volt from Autozone. The new plug on the regulator looked like this:

but the plug on the car's wiring harness looked like this and required the 'outrigger' tabs that are on the original OEM:

I returned the Dorman 751-576 to Autozone. Then I started looking at Dorman's website and found a wiring harness pigtail 645-200 that looked like it would fit the new plug on the new window regulator. After finding that Amazon had the 751-576 regulator for $86 instead of Autozone's $123 and the pigtail was $18 (also on Amazon, $36 on Autozone) and they were both Amazon Prime (free returns), I purchased the regulator and the pigtail. When they arrived, the pigtail's plug fit the regulator perfectly.

Note: Dorman's website does NOT list the 645-200 pigtail as compatible with a 2014 Volt and Amazon's ConfirmedFit specifically says it does not fit.

For reference, this was what I bought from Amazon:
Amazon.com: Dorman 751-576 Front Passenger Side Power Window Motor and Regulator Assembly Compatible with Select Chevrolet Models : Automotive
Amazon.com: Dorman 645-200 GM Window Motor Regulator Connector Compatible with Select Models : Automotive

This middle-year parts change seems to be under the radar of the aftermarket manufacturers, although I believe they are dependent on GMs databases for the information.

One other note: The Dorman regulator looks better made than the OEM, so I definitely recommend going Dorman instead of trying to track down the OEMs that was frail to begin with.