There is a TBS on this here it is with instructions on how to fix it below.
Bulletin No: 09-01-37-002E
Date: November 01, 2011
Subject: Water Leak into Front and Rear Passenger Floor and/or Carpet Wet (Inspect White Plug in HVAC Evaporator Drain and Apply Sealer to Front of Dash Area)
2008-2010 Chevrolet Cobalt
2008-2011 Chevrolet HHR
2008-2012 Chevrolet Malibu
2008-2009 Pontiac G6
2008-2010 Pontiac G5
2008-2009 Saturn AURA
This bulletin is being revised to add the 2012 model year. Please discard Corporate Bulletin Number 09-01-37-002D (Section 01 - HVAC).
Some customers may comment that the front and rear floor carpet is wet on the passenger side.
This condition may be caused by a plugged HVAC evaporator Drain. In some cases, water from the HVAC system will drain back though the front of the dash.
Reposition of the heat shield is not necessary on a Cobalt and HHR.
1. Verify the customer's concern. If there is water on the passenger side front floor area, raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
2. Inspect the operation of the drain.
Make sure that small debris is not plugging up the drain.
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Tuesday, June 23rd, 2015 AT 7:23 AM