NHTSA ID Number: 10201326
Manufacturer Communication Number: PIT5387K
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
18 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
CHEVROLET | SILVERADO 1500 | 2014, 2017-2019, 2021 |
| CHEVROLET | SILVERADO 2500 | 2015-2016, 2020, 2022 |
| GMC | SIERRA 1500 | 2014, 2017-2019, 2021-2022 |
| GMC | SIERRA 2500 | 2015-2016, 2020 |
Condition / Concern
IPC cluster/radio/HVAC display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow.
A snow plow places very high electrical loads on a truck’s charging system when it is being operated (during plow movement). It demands the highest load (as high as 200 amps) when it is raised up completely or turned to either left or right maximum angle. As this load is turned on and off, the truck’s charging system has to react within a faction of a second to either increase or decrease its output to meet the plow’s requirements.
There is no way for the truck’s charging system to know when the driver is going to operate the snow plow, and in some cases, when the load is suddenly turned off, the charging system may momentarily over-charge for a fraction of a second. If this happens it can cause the various complaints listed above.
Recommendations / Instructions
To correct this condition install the snow plow generator jumper harness.
For 2019 (new body style) to 2022 trucks, please reference the latest version of GM Upfitter Integration Bulletin 161 for additional information and installation instructions.
For 2014 to 2019 (old body style) trucks, please reference the latest version of GM Upfitter Integration Bulletin 124 for additional information and installation instructions.
To view these bulletins, access https://www.gmupfitter.com/, select the “TECHNICAL BULLETINS” tab followed by “Show all bulletins”. For any questions regarding these upfitter bulletins, please contact GM Upfitter.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387K
Published date: 08/24/2021
MC-10201326-9999.pdf 104.156KB
NHTSA ID Number: 10187175
Manufacturer Communication Number: PIT5387J
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387J
Published date: 12/10/2020
MC-10187175-9999.pdf 103.436KB
NHTSA ID Number: 10185724
Manufacturer Communication Number: PIT5387J
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387J
Published date: 12/10/2020
MC-10185724-9999.pdf 103.436KB
NHTSA ID Number: 10182573
Manufacturer Communication Number: PIT5387H
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387H
Published date: 10/27/2020
MC-10182573-9999.pdf 103.395KB
NHTSA ID Number: 10171297
Manufacturer Communication Number: PIT5387G
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387G
Published date: 01/17/2020
MC-10171297-9999.pdf 103.389KB
NHTSA ID Number: 10143767
Manufacturer Communication Number: PIT5387F
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387F
Published date: 07/18/2018
MC-10143767-9999.pdf 157.061KB
NHTSA ID Number: 10125128
Manufacturer Communication Number: PIT5387E
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387E
Published date: 11/20/2017
NHTSA ID Number: 10096213
Manufacturer Communication Number: PIT5387C
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLES MAY HAVE INSTRUMENT PANEL CLUSTER, RADIO, AND HEATER-VENT-AIR CONDITIONING DISPLAYS BLANKING OUT. ALSO BLUETOOTH DEVICES MAY DROP CONNECTION OR THE RADIO VOLUME CHANGES WHEN OPERATING THE SNOW PLOW. TECHNICIAN WILL REPLACE THE SNOW PLOW JUMPER HARNESS.
2 Associated Documents
Service Bulletin Document
Bulletin No.: PIT5387C
Date: Feb-2016
Manufacturer Communications
Bulletin No.: PIT5387C
Date: Feb-2016
NHTSA ID Number: 10115104
Manufacturer Communication Number: PIT5387A
Summary
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387A
Date: Nov-2015
NHTSA ID Number: 10139396
Manufacturer Communication Number: PIT5387
Summary
This Preliminary Information communication provides information to the technician about vehicles that may have a radio, Instrument Panel Cluster, and Heater-Vent-Air Conditioning display going blank also the Bluetooth connection drops when operating the snow plow. Dealer should communicate to the customer engineering is aware of this concern and working on this issue.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5387
Date: Mar-2015
GM Upfitter Integration Bulletin 124
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SEOCONTENT-START
Bulletin No.: PIT5387K Published date: 08/24/2021 Preliminary Information PIT5387K Snow Plow Generator Harness Installation / Radio HVAC IPC Blank out When Operating a Snow Plow Product Investigation Review Required Models Brand: Chevrolet Chevrolet GMC GMC Model: Silverado 1500 Silverado Sierra 1500 Sierra Model Years: 2014 2015 – 2022 2014 2015 – 2022 VIN: from to All All All All All All All All Engine: All All All All All All All All Transmissions: With Snow Plow Prep Package (RPO VYU) Supersession Statement This PI was superseded to update the model year and recommendation section. Please discard PIT5387J. Condition / Concern Some owners may experience any of the following: IPC cluster/radio/HVAC display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. A snow plow places very high electrical loads on a truck’s charging system when it is being operated (during plow movement). It demands the highest load (as high as 200 amps) when it is raised up completely or turned to either left or right maximum angle. As this load is turned on and off, the truck’s charging system has to react within a faction of a second to either increase or decrease its output to meet the plow’s requirements. There is no way for the truck’s charging system to know when the driver is going to operate the snow plow, and in some cases, when the load is suddenly turned off, the charging system may momentarily over-charge for a fraction of a second. If this happens it can cause the various complaints listed above. Recommendations / Instructions To correct this condition install the snow plow generator jumper harness. For 2019 (new body style) to 2022 trucks, please reference the latest version of GM Upfitter Integration Bulletin 161 for additional information and installation instructions. For 2014 to 2019 (old body style) trucks, please reference the latest version of GM Upfitter Integration Bulletin 124 for additional information and installation instructions. To view these bulletins, access https://www.gmupfitter.com/, select the “TECHNICAL BULLETINS” tab followed by “Show all bulletins”. For any questions regarding these upfitter bulletins, please contact GM Upfitter. Warranty Information For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation Description Labor Time 0580178* Install Generator/Snow Plow Harness 1.2 Hr. * This is a unique labor operation for bulletin use only. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. Additional SI Keywords 15208
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