False B127E Set In HMI Module (PIT5301B)

Publication date: 2017-08-23
Reference number: PIT5301B
Supersedes refnos: PIT5301A

FALSE B127E SET IN HMI MODULE

TECHNICAL SERVICE BULLETIN

Reference Number(s): PIT5301A, Date of Issue: May 16, 2016

Affected Model(s):	2014-2016 Buick Lacrosse 2013-2016 Cadillac SRX, XTS 2015-2016 Cadillac Escalade Models 2015-2016 Chevrolet Silverado, Suburban, Tahoe 2015-2016 GMC Sierra, Yukon Models Equipped with RPO U42 or UWG
Supercedes:	This PI superseded to add 2016 Model Year, please discard PIT5301.

SERVICE INFORMATION

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

CONDITION/CONCERN

When performing diagnostics on the infotainment system technicians may find DTC B127E set as a current or history code in the HMI.

RECOMMENDATION/INSTRUCTIONS

When a DVD is playing on the front radio display B127E will set as a false current code. Please ignore TC B127E unless the code stays current after ejecting the DVD.

NOTE:

B127E will show as a history code if the DVD is ejected or if the video is not playing on the frontradio display.