# Service bulletin PIT\-4801B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10036564
- Published by NHTSA: 2011\-03\-30
- Manufacturer's number: PIT\-4801B
- Manufacturer's date: 2010\-06\-01
- NHTSA component: ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; ELECTRICAL SYSTEM:WIRING

## NHTSA's summary

GMC/CHEVROLET: CHECK TRAILER WIRING MESSAGE IN DIC POOR CONNECTIONS AT 7\-WAY\). THIS CONCERN COULD BE CAUSED BY A POOR CONNECTION AT THE 7\-WAY TRAILER CONNECTOR. THERE ARE SEVERAL MANUFACTURERS OF 7\-WAY \(TRAILER SIDE\) CONNECTORS AND NO INDUSTRY STANDARD SPECIFICATIONS FOR THESE CONNECTORS. MODELS AVALANCHE, SUBURBAN, TAHOE, SIERRA, SILVERADO, SIERRA DENALI, YUKON, YUKON XL. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Wiring and fuses

## Vehicles listed

- 2009 to 2010 CHEVROLET AVALANCHE
- 2009 to 2011 CHEVROLET AVALANCHE 1500
- 2007 to 2010 CHEVROLET SILVERADO
- 2011 CHEVROLET SILVERADO 1500
- 2009 CHEVROLET SUBURBAN
- 2009 to 2011 CHEVROLET SUBURBAN 1500
- 2009 to 2011 CHEVROLET TAHOE
- 2007 to 2011 GMC SIERRA
- 2008 to 2009 GMC SIERRA DENALI
- 2009 to 2011 GMC YUKON
- 2009 GMC YUKON XL
- 2009 to 2011 GMC YUKON XL 1500

## Other bulletins for the same vehicles and component

- [130089008](/bulletins/10246630.md), 2023-12-11, Service bulletin: ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
- [100089005G](/bulletins/10159575.md), 2019-05-13, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
- [100089005H](/bulletins/10154629.md), 2019-03-18, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
- [10\-00\-89\-005C](/bulletins/10139026.md), 2018-06-04, Service bulletin: ELECTRICAL SYSTEM:WIRING; EQUIPMENT. This informational bulletin is a revision for 10\-00\-89\-005B to add the 2014 model year and labor codes.
- [10\-00\-89\-005E](/bulletins/10137237.md), 2018-05-21, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information.
- [13\-00\-89\-008A](/bulletins/10135394.md), 2018-05-07, Service bulletin: ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information.
- [13\-08\-116\-001](/bulletins/10133149.md), 2018-04-16, Service bulletin: ELECTRICAL SYSTEM:WIRING. This technical bulletin provides a procedure on suspected tampering due to aftermarket ALDL or DLC interface devices causing multiple issues.
- [13\-00\-89\-008](/bulletins/10130565.md), 2018-04-02, Service bulletin: ELECTRICAL SYSTEM:WIRING. This informational bulletin provides information for GM wiring repair.
- [100089005D](/bulletins/10126221.md), 2017-12-22, Service bulletin: ELECTRICAL SYSTEM:WIRING. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.
- [10\-08\-42\-001D](/bulletins/10114265.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM:WIRING. This technical bulletin provides a procedure to check the headlamp wiring connector and replace if damaged.

JSON: [/v1/bulletins/10036564](/v1/bulletins/10036564)

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