Shudder Or Vibration From The Transmission – 2017-2019 Chevrolet Silverado & GMC Sierra

Bulletin No.: PIP5541A
Published date: 03/27/2019

Preliminary Information

PIP5541A Shudder Or Vibration From The Transmission

 

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Silverado 2017 – 2018 All All L5P (6.6L) MW7 Allison Transmission (LCT1000)
Chevrolet Silverado 2500/3500 2019 All All L5P (6.6L) MW7 Allison Transmission (LCT1000)
GMC Sierra 2017 – 2018 All All L5P (6.6L) MW7 Allison Transmission (LCT1000)
GMC Sierra 2500/3500 2019 All All L5P (6.6L) MW7 Allison Transmission (LCT1000)

 

Involved Region or Country North America and North America Export Regions
Condition Some customers may comment on any of the following conditions:

A vibration, shake or shudder during light throttle acceleration between 25 and 70 mph (40 and 112 km/h) steady state driving.

A shudder feeling that may be described as driving over rumble strips or rough pavement.

A shudder after the 2-3 shift.

Cause Possible engine performance issue.

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eAssist (BAS3 HYBRID) Starter Generator (MGU) Part Restriction – 2016-2018 Chevrolet Silverado & GMC Sierra

Bulletin No.: PIT5526C
Published date: 03/25/2019

Preliminary Information

PIT5526C eAssist (BAS3 HYBRID) Starter Generator (MGU) Part Restriction Has ended

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Silverado 2016 – 2018 All All L8B – EASSIST 5.3L ECOTEC V8 All
GMC Sierra 2016 – 2018 All All L8B – EASSIST 5.3L ECOTEC V8 All

 

Involved Region or Country North America
Condition Part Restriction
Cause New product, Engineering is reviewing these cases.

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No TBT Audio When UEW Navigation Radio Is Turned Off – 2012-2013 Buick Chevrolet & GMC

Bulletin No.: PIC5648A
Published date: 03/25/2019

Preliminary Information

PIC5648A No TBT Audio When UEW Navigation Radio Is Turned Off

 

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Buick Regal 2012 All All All All
Buick Verano 2012 All All All All
Chevrolet Cruze 2012 All All All All
Chevrolet Equinox 2012 All All All All
Chevrolet Malibu ECO 2013 All All All All
GMC Terrain 2012 All All All All

 

Supersession Statement

This PI was superseded to update the Condition, and Recommendation details. Please discard PIC5648.

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

 

Condition / Concern

A customer may comment they do not hear OnStar Turn-by-Turn (TBT) prompts or directions with their radio off .

Note: This only applies to OnStar TBT. It DOES NOT apply to OnStar Destination Download (ODD).

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Product Safety Recall N182206310 Diesel Engine Block Heater Cord – 2017-2019 Chevrolet Silverado & GMC Sierra

April 25, 2019 NHTSA CAMPAIGN NUMBER: 19V328000

Engine Block Heater/Terminal Short-Circuit

A short-circuit may damage the engine components and increase the risk of fire.

 

NHTSA Campaign Number: 19V328

Manufacturer General Motors LLC

Components ENGINE

Potential Number of Units Affected 324,226

 

Summary

General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and 3500 vehicles equipped with Duramax 6.6 liter diesel engines and an optional engine-block heater. The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.

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A182202370 – Lower-Control Arm May Separate From Vehicle – 2017-2019 Chevrolet Trax

April 18, 2019

Lower-Control Arm May Separate From Vehicle

A partial separation of the lower-control arm from the vehicle could cause the attached front wheel to toe outward, impacting the vehicle’s handling and steering and increasing the risk of crash.

 

NHTSA Campaign Number: 19V312

Manufacturer General Motors LLC

Components SUSPENSION

Potential Number of Units Affected 112,958

 

Summary

General Motors LLC (GM) is recalling certain 2017-2019 Chevrolet Trax vehicles. A joint in one or both of the front lower-control arms may have been improperly welded. An improperly welded joint may break, resulting in the partial separation of the lower-control arm from the vehicle.

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