Air Conditioning Not Getting Cold Enough or Blows Warm Air – 2015-2016 Chevrolet

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Bulletin No.: 16-NA-028
Date: August 16, 2016

Brand:	Model:	Model Year:		Breakpoint		Engine:	Transmission:
		from	to	from	to
Chevrolet	Sonic	2015	2016	SOP 2015	April 1, 2016	All	All
Chevrolet	Trax (Region of Build, 3: 1st Position of VIN)	2015	2016	SOP 2015	April 1, 2016	All	All

Correction

Important: The manufacturing process has been corrected, however, any vehicles produced between the breakpoints shown above may be affected. Because the standard SI diagnostics likely would not pinpoint this cause, the thermal test below is being communicated in this bulletin as a way to verify a good from a mis-built condenser.

Service Procedure:

Before doing any repairs, refer to Air Conditioning System Performance Test in SI, and also complete the temperature variation test noted below:

1. Perform a diagnostic check of the A/C system. Refer to Air Conditioning (A/C) System Performance Test in SI. If no leaks and a proper refrigerant charge were found, continue to step #2 starting the A/C condenser temperature variation test.
2. Partially raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
3. Turn the A/C system on high blower / non – recirculation mode, and run for a minimum of 1 minute, prior to taking any temperature measurements.

Important: Take all temperature measurements with the A/C system operating, and compressor engaged.

4. Accessing the right side lower grille area, use an Infrared thermal gun to take a reading at 2 locations noted in the steps below, and record temperatures and note temperature difference.

4.1 Take a reading at lower tube #2, designated by the lower red line in the graphic above. To obtain a proper reading, the gun beam should be positioned directly on tube #2, about 25 mm (1.0 in) to the right of the manifold.

Note: The condenser air baffle has been removed in the graphic above for illustration purposes only. The intent was to show that the #7 tube is 2 tubes above the blocking plate (1).

4.2 Next, move the laser dot to the #7 tube (designated by the upper red line). Take a reading ensuring the beam is positioned directly on the tube, approximately the same position from the manifold.

• If the difference in the reading is at least 10 degrees F or more, the condenser is functioning properly and further diagnostics will need to be completed to verify the cause of the condition.
• If the difference in the reading is approximately the same, or within 10 degrees or less, the vehicle has a misbuilt condenser. Prior to replacement, confirm that during temperature readings taken, the compressor was running for at least 10 seconds and was still running during measurements. If so, replace the A/C condenser. Refer to the appropriate Air Conditioning Condenser Replacement in SI.

Parts Information

Note: Use the vehicle identification number (VIN), SI, and the GM Electronic Parts Catalog to determine the proper condenser to order.

Description	Part Number
CONDENSER ASM-A/C	95286873 Genuine GM Condenser Part# - 95286873 Sonic. 1.8L. Without turbo. $208.96 Buy on Amazon Price incl. tax, excl. shipping
CONDENSER ASM-A/C	96945774 GM Genuine Parts 15-63743 (96945774) Air Conditioning Condenser Brazed and mechanically bonded aluminum construction for OE durability Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE) GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type GM regularly updates production and service part designs to integrate new materials and technologies $197.92 Buy on Amazon Price incl. tax, excl. shipping

Warranty Information

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