Released 3/12/2018
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 3/5/2018
Fleet Key Option - Adding Keys / Converting

TSB Description

Released 2/28/2018
Red LED, No WiFi Operation, and/or Limited OnStar Module Functionality After OnStar Module Replacement for Another Condition

Released 2/14/2018
OnStar, XM, GPS or Antenna Malfunction -- May Set DTC B2462, B2470 or B125C - and/or Water Leak on Headliner at Sun Visor or Overhead Console Areas, Possible Battery Drain Concern

Released 2/1/2018
Information On Diesel Exhaust System Configuration and DPF Soot Accumulation, Malfunction Indicator Lamp (MIL) Illuminated - DTC P2463 Set

Released 11/20/2017
Diagnostic Tip- Information for U0140 or U0073 (BCM Appears Off Line On The High Speed Buss)

Released 10/20/2017
PQC 2015-2018 8L45 8L90 Automatic Transmission Park Actuator Rod Restriction

Released 9/28/2017
Diagnostic Tip: OnStar Vehicles with B101D and Symptom Codes

Released 9/26/2017
Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated, Auto Stop Inoperative - DTC U029D, U029E, P249D, P249E Set

Released 8/31/2017
Turbocharger Whine Noise

Released 7/25/2017
Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application

Released 7/21/2017
Information on Removing Protective Film Bumper Covers Upon Delivery of Vehicle (PDI)

Released 2/28/2018
Red LED, No WiFi Operation, and/or Limited OnStar Module Functionality After OnStar Module Replacement for Another Condition

Released 2/27/2018
Any Of The Following Fuses Blown F22PA F7UA F9UA F8UA F10UA F11UA F12UA F14UA F25UA F26UA F27UA F28UA F29UA F46UA F58UA F59UA F72UA and/or F75UA

TSB Description

Released 2/21/2018
Service Update Bulletin - Rear Turn Signals Illuminate When Brakes Are Applied

Released 11/20/2017
Diagnostic Tip- Information for U0140 or U0073 (BCM Appears Off Line On The High Speed Buss)

Released 7/25/2017
Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application

Released 3/12/2018
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 11/20/2017
Information On Malfunction Indicator Lamp (MIL) Illuminated - DTC P10D1, P11B3, P11CCSet

TSB Description

Released 11/16/2017
Emission Recall - Diesel Particulate Matter Sensor Diagnostic Fault

Released 9/26/2017
Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated, Auto Stop Inoperative - DTC U029D, U029E, P249D, P249E Set

Released 3/5/2018
Fleet Key Option - Adding Keys / Converting

Released 8/31/2017
Turbocharger Whine Noise

TSB Description

Released 7/25/2017
Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application

Released 7/18/2017
Stalling - Hesitation - Lack Of Performance P018B And/Or P2635 Setting In High Ambient Temperatures

Released 3/12/2018
Normal Characteristic - Sag Or Hesitation On Acceleration

Released 12/6/2017
Service Update - Engine Mount Bolts Not Tightened

TSB Description

Released 11/16/2017
Emission Recall - Diesel Particulate Matter Sensor Diagnostic Fault

Released 10/20/2017
PQC 2015-2018 8L45 8L90 Automatic Transmission Park Actuator Rod Restriction

Released 10/16/2017
PQC 2018 Part Restriction T87A Transmission Control Module

Released 9/27/2017
6.0L Engine Noise and/or Misfire

Released 8/31/2017
Information on CJ-4 or CK-4 Diesel Engine Oil

Released 7/28/2017
2.8L Diesel Engine (LWN) Engine Exchange Program

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