Chevrolet encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Chevrolet, the letter should be addressed to:
United States and Puerto Rico
Chevrolet Motor Division
Chevrolet Customer Assistance
Center
P.O. Box 33170
Detroit, MI 48232-5170
1-800-222-1020
1-800-833-2438 (For Text
Telephone Devices (TTYs))
Roadside Assistance:
1-800-243-8872
From U.S. Virgin Islands: 1-800-496-9994
Canada
General Motors of Canada
Company
Customer Care Centre, Mail Code:
CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices (TTYs))
Roadside Assistance:
1-800-268-6800
Overseas
Please contact the local General Motors Business Unit.
Customer Satisfaction
Procedure
Customer Assistance for Text
Telephone (TTY) UsersControl Valve Body Assembly Disassemble (Gen 2) Automatic Transmission Unit Control Valve Body
Control Valve Body Assembly DisassembleCalloutComponent Name1Control Solenoid Valve Support2Control Valve Body Bolt-M5-x-40.5-(Qty:-1)3Valve Channel PlateNote:Inspect the channel plate bolt pass through holes for damage or brinelling. Any damagewill cause incorrect pressure switch operation. Replace ...