Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 17-NA-327.
Information for Dead Battery
Condition
Some customers may comment on the following conditions:
• Dead battery
• Dead battery after car sits a couple days Cause This condition may be caused by the OnStar® module staying awake, drawing power from the battery.
Correction
Note: If the vehicle is towed to the dealer with a dead battery, it is highly unlikely that a battery draw will be verified once the battery is charged.
Verify that the vehicle VIN is flagged in the Global Warranty Management / Investigate History (GWM/IVH). If the VIN is flagged, do a Blue Button Press from the vehicle and request a "Re-configuration" and operational evaluation.
