Surge, Chuggle, Fishbite, Shudder Feel During Driving Maneuvers – 2019 Cadillac XT4

•   Surge

•   Chuggle

•   Fishbite

•   Shudder

1.   Order a glycol test kit from the Warranty Parts Center (WPC) using the attached form.

2.   Perform a glycol test.

•   If no glycol contamination is found (no color change), drain and refill the transmission using DEXRON VI. Refer to Transmission Fluid Drain and Fill in SI and further work is needed.

•   If the glycol level is 50 ppm or above:

Important: It may be necessary to drive a minimum of 321 km (200 mi) if slight shudder remains after the repair.

1. Replace the transmission. Refer to Transmission Replacement in SI.

2. Refer to PIP5645 for transmission part restriction information.

3. Replace the transmission fluid cooling exchanger. Refer to Automatic Transmission Fluid Cooling Exchanger Replacement in SI.

January 22, 2019 – Added the AWD Torque Converter part number to the Parts Information section.

February 04, 2019 – Added Warranty Information.

May 16, 2019 – Updated the Correction section and Warranty Information and added the WPC Part Request Form.

Attn: WPC Customer Assistance

Part Being Requested: Glycol test (P/N WPC #835)

Dealer BAC (U.S.) /Dealer Code (Canada)/Dealer Number (Mexico):

Dealer Name:

Dealer Address:

Dealer Contact Person:

Dealer Phone Number:

Repair Order Number:

Vehicle Model Year:

Vehicle VIN:

Important: If you do not receive the part within 2 business days after e-mailing or faxing your part request to the Warranty Parts Center, please call WPC Customer Assistance at 248-371-9901/9902.