GMC TSB #PIT4597E
2012 GMC Yukon
Affected Component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- Summary
- This Preliminary Information communication provides the technician with the additional steps that are needed to help perform a successful brake bleed on the 2-Mode Hybrid with Regular Production Option Code HP2. With a battery maintainer installed on the vehicle use brake pressure bleeder that maintains 30 psi for the entire bleed procedure.