PIT4614B: Hybrid No Crank With DTC B009F or Service Hybrid message with no codes – 2009-2013 Cadillac Chevrolet & GMC

#PIT4614B: Hybrid No Crank With DTC B009F or Service Hybrid message with no codes – (Jun 10, 2016)

Subject: Hybrid No Crank With DTC B009F or Service Hybrid message with no codes
Models: 2009-2013 Cadillac Escalade
2009-2013 Chevrolet Silverado
2008-2013 Chevrolet Tahoe
2009-2013 GMC Sierra
2008-2013 GMC Yukon
With RPO HP2

This PI was superseded to update Recommendation/Instructions. Please discard PIT4614A.


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

 

Condition/Concern

Some customers may experience a

  1. No crank/no start condition with DTC B009F set in the serial data gateway module (SDGM).
  2. Service Hybrid message with no codes

This concern may be caused by water intrusion past the weatherpack seal on the High Voltage Circuit Impact Detection (HVCID) sensor. The sensor is located in the center of the lower radiator support. (See Photo below)

High Voltage Circuit Impact Detection (HVCID) sensor

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PI1341A: Cooled Seat Fan Making Tapping Noise When in Use – 2014-2017 Chevrolet Impala

#PI1341A: Cooled Seat Fan Making Tapping Noise When in Use – (Jun 10, 2016)

Subject: Cooled Seat Fan Making Tapping Noise When in Use
Models: 2014-2017 Chevrolet Impala (VIN 1)
Equipped with Ventilated Driver and Passenger Front Seats (RPOs KU1, KU3)

This PI has been revised to remove the breakpoint and add the 2016-2017 Model Years. Please discard PI1341.


 

Condition/Concern

Some customers may comment on a tapping noise heard when using cooled seats.

This condition may be due to the seat cushion heat harness coming in contact with the cooling fan.

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16-NA-187: Exterior Approach Lighting Flashes Intermittently Causing Battery Rundown – 2016 Cadillac CT6

#16-NA-187: Exterior Approach Lighting Flashes Intermittently Causing Battery Rundown – (Jun 10, 2016)

Subject: Exterior Approach Lighting Flashes Intermittently Causing Battery Rundown

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Cadillac CT6 2016 2016 All All

 

Involved Region or Country North America
Condition Some customers may comment that the exterior approach lighting flashes intermittently, causing a low battery.
Cause This may be caused by the Keyless Entry Control Module (KECM) intermittently detecting a transmitter on the perimeter of exterior coverage and flashes approach lighting, discharging the battery.

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16-NA-186: Intermittent Generator Drive Belt Squeal – 2016 Cadillac CT6

#16-NA-186: Intermittent Generator Drive Belt Squeal – (Jun 10, 2016)

Subject: Intermittent Generator Drive Belt Squeal

Brand: Model: Model Year: VIN: Engine: Transmission
from to from to
Cadillac CT6 (Plant U: 11th Position of VIN) 2016 2016 SOP May 6, 2016 All All
Cadillac CT6 (Plant A: 11th Position of VIN) 2016 2016 SOP April 22, 2016 All All

 

Involved Region or Country North America and China
Additional Options (RPO) Equipped with Twin Turbo 3.0L V6 Engine (RPO LGW)
Condition Some customers may comment that the generator belt exhibits a squeal at times.
Cause This condition may be caused by the generator belt being manufactured too long.

This can result in a squeal during high (100%) generator duty cycle.

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16-NA-185: Information on Front Lower Air Dam – 2016 Buick Cascada

#16-NA-185: Information on Front Lower Air Dam – (Jun 9, 2016)

Subject: Information on Front Lower Air Dam

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Buick Cascada 2016 2016 All All

 

Condition The two piece front lower air dams are placed in the vehicles trunk at the assembly plant and installed at the dealership during PDI. They were originally separate left and right side parts, but dealers will begin seeing the two halves connected.
Cause Front Lower Air Dam

As an error-proofing measure to ensure the left and right halves arrive properly, the two pieces now are attached to each other.

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