IMPORTANT: Our team will be out of the office from June 29 through July 3 due to GM summer shutdown. We will return on Monday July 6. During this time, responses may be delayed. Thank you for your patience and understanding. NEW BULLETINS Bulletin 206 - Information on Hesitation and/or Misfire Sensation When Passing Under High Voltage Transmission (Power) Lines - Multiple Intermittent ABS DTCs Set Bulletin 205 - 9L7 Upfitter AUX Switches - Higher Trim Levels Bulletin 204 - Tahoe PPV - Liftgate Strut Warning Bulletin 203 - UVM (Universal Vehicle Module) Information Bulletin 202 - Backup Alarm Installation Recommendations Bulletin 201 - Installing a Backup Alarm Silverado EV WT Bulletin 200 - Upfitter Power Provisions - Silverado EV WT NOT SPAM Notice We are constantly working to make contacting us a more user-friendly experience. We recently launched a direct contact inquiry ticketing system that allows you to reply directly back to us via the ticket system. Our responses to your requests/inquiries are sent via an email address of [email protected]. To insure you receive our responses please be sure to denote [email protected] as NOT SPAM, so that the response is delivered to your email inbox. Thank you. GM Upfitter Integration.
