19NA058

Bulletin No.:
Service Bulletin
Date:
19-NA-058
March, 2019
TECHNICAL
Subject:
Hesitation or Low Power Due to False Knock Detection and/or Malfunction Indicator
Lamp (MIL) Illuminated, DTC P2096 / P2097 Set
Brand:
Model:
Chevrolet
Malibu
Model Year:
VIN:
from
to
2019
2019
from
to
Engine:
Transmission:
1.5L (LFV)
All
Involved Region or Country
North America and N.A. Export Regions
Condition
Some customers may comment that there is a hesitation / low power condition and/or MIL
is illuminated with P2096 or P2097 set.
Cause
The cause of the condition may be a software anomaly.
Correction
If you encounter a vehicle with the above condition, reprogram the Engine Control
Module (ECM) with the latest available software.
Service Procedure
Parts Information
Note: Stable battery voltage is critical during
programming. Any fluctuation, spiking, over voltage or
loss of voltage will interrupt programming. Install a GM
Authorized Programming Support Tool to maintain
system voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12 V jumper or booster pack disconnected
from the AC voltage supply. DO NOT connect a battery
charger.
No parts are required for this repair.
If reprogramming the ECM, refer to K20 Engine Control
Module: Programming and Setup in SI.
Warranty Information
For vehicles repaired under the Emission coverage,
use the following labor operation. Reference the
Applicable Warranties section of Investigate Vehicle
History (IVH) for coverage information.
Labor
Operation
Description
Labor Time
2886198*
Engine Control Module
Reprogramming with SPS
0.3 hr
*This is a unique Labor Operation for Bulletin use only.
Version
1
Modified
Released March 19, 2019
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
Copyright 2019 General Motors LLC. All Rights Reserved.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION