Excessive Windshield Condensation, HVAC Defrost Door Flutter Type Noise Heard – 2016-2017 Chevrolet Camaro

Bulletin No.: 17-NA-201
Date: February, 2019


Service Bulletin


TECHNICAL


Subject: Excessive Windshield Condensation, HVAC Defrost Door Flutter Type Noise Heard

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Chevrolet Camaro 2016 2017

 

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

  • Vehicles built between October 15, 2015 – March 12, 2016, a flutter type noise may be heard from the HVAC when in manual mode and set to either floor or tri-level mode.
  • Vehicles built on/after March 13, 2016 may have excessive condensation on the windshield above the center defrost vents.
Cause These may be caused by one of the following conditions:

  • Flutter noise may be due to the HVAC door making contact to the case during high fan speed.

foam pads

 

  • Windshield condensation may be due to the foam pads on the defrost door allowing too much air to pass through, causing excessive condensation on the outside of the windshield.

Note: During extreme humid conditions, some condensation can be considered normal.

Additional Information:

In certain settings, the system is designed to bleed air to the windshield to prevent it from fogging/freezing in cold weather conditions where the ambient temperature is extremely cold and the inside cabin temperature is hot.

The best recommendation for customer comfort, and to prevent condensation during hot/ humid ambient conditions and cold cabin air, is to place the AC in “auto” or manually set it to the “bi-level” (floor and vent/face/dash) position. Recommended temperature setting is between 68-72 degrees (20-22°C).

table shown above helps to explain the air flow distribution

 

The table shown above helps to explain the air flow distribution.

  • OSA = Outside Air
  • Rec = Recirculated Air
  • F/C = Full Cold
  • F/H = Full Hot
Correction
  • An updated software calibration has been released to address the flutter type noise condition.
  • Remove both foam pads located on the defrost door to address the excessive windshield condensation then update the software to address the flutter issue that results when the foam is removed.

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Folding Top Service Tips to Prevent A Broken Rear Glass Assembly – 2016-2019 Chevrolet Camaro

Bulletin No.: PIC6336
Published date: 07/18/2018

Preliminary Information

PIC6336 Folding Top Service Tips to Prevent A Broken Rear Glass Assembly

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Camaro 2016 – 2019 All All All All

 

Involved Region or Country All
Additional Options (RPO) CM8 – Power Folding Top
Condition Some technicians may comment that the back glass, which is an integral part of the folding top canvas, had broken after cycling the folding top assembly.  This will be noticed very soon after a folding top canvas or a side rail has been replaced for service.

Broken Rear Glass

Broken Rear Glass

Cause The cause of this concern may be due to improper reassembly of the folding top linkage where it connects to the back glass.

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Engine Squeak or Squeal Noise Coming From the Water Pump – 2017-2019 Chevrolet Colorado & GMC Canyon

Bulletin No.: PIP5583
Published date: 09/5/2018

Preliminary Information

PIP5583 Engine Squeak or Squeal Noise Coming From the Water Pump

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Colorado 2017 – 2019 All All 3.6L LGZ All
GMC Canyon 2017 – 2019 All All 3.6L LGZ All

 

Involved Region or Country North America
Condition Some customers may comment that there is a slight squeak or squeal noise coming from the front of engine belt area. This noise may or may not be present at the time vehicle comes in.
Cause This condition may be caused by lack of coolant (lubricant) at the water pump seal mating surfaces.

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Shifter Click Noise, Shifter Boot Appears Tight or Bulge in the Shifter Boot – 2018-2019 Chevrolet Colorado & GMC Canyon

Bulletin No.: PIP5595
Published date: 10/2/2018

Preliminary Information

PIP5595 Shifter click noise, shifter boot appears tight or bulge in the shifter boot

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Colorado 2018 – 2019 All All All N8D
GMC Canyon 2018 – 2019 All All All N8D

 

Involved Region or Country North America
Condition Click noise from the shifter area or customer complaints of the shifter boot is tight or has a bulge in it.
Cause Transmission isolator boot is not fully seated

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Rattle Noise from 60 /40 Rear Seat – 2015-2019 Chevrolet Colorado & GMC Canyon

Bulletin No.: PIT5605A
Published date: 10/18/2018

Preliminary Information

PIT5605A Rattle Noise from 60 /40 Rear Seat

Models

Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Colorado 2015 – 2019 All All All All
GMC Canyon 2015 – 2019 All All All All

 

Involved Region or Country: North America
Additional RPO/s: AJ2
Condition: Rattle noise from the rear 60/40 seat
Cause: Misalignment of the seat back latch

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