# Service bulletin PIT5747A

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: 10187184
- Published by NHTSA: 2021\-02\-16
- Manufacturer's number: PIT5747A
- Manufacturer's date: 2020\-12\-14
- NHTSA component: TRAILER HITCHES; AIR BAGS

## NHTSA's summary

This Preliminary information communicates to dealership how to test properly trailer light option on the truck and also provide additional information on trailer issues.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10187184-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10187184-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Air bags, Trailer hitch

## Vehicles listed

- 2019 CHEVROLET SILVERADO 1500
- 2020 CHEVROLET SILVERADO 2500
- 2019 GMC SIERRA 1500
- 2020 GMC SIERRA 2500

## Recalls for the same vehicles and component

- [26V325000](/recalls/nhtsa/26V325000.md), 2026-05-21: AIR BAGS
- [26V166000](/recalls/nhtsa/26V166000.md), 2026-03-19: AIR BAGS
- [25V432000](/recalls/nhtsa/25V432000.md), 2025-06-26: AIR BAGS
- [24V756000](/recalls/nhtsa/24V756000.md), 2024-10-10: AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
- [2020350](/recalls/tc/2020350.md), 2020-07-30: Airbag
- [20V446000](/recalls/nhtsa/20V446000.md), 2020-07-30: AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
- [2018688](/recalls/tc/2018688.md), 2018-12-07: Airbag
- [18V868000](/recalls/nhtsa/18V868000.md), 2018-12-06: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

## Other bulletins for the same vehicles and component

- [25\-NA\-019](/bulletins/11014138.md), 2025-02-11, Service bulletin: WHEELS; VEHICLE SPEED CONTROL; AIR BAGS; ELECTRICAL SYSTEM; SERVICE BRAKES. This bulletin advises the tech to check other areas that may need repair before replacing the wheel speed sensor.
- [21\-NA\-275](/bulletins/11011993.md), 2024-12-19, Service bulletin: POWER TRAIN; WHEELS; AIR BAGS. This service bulletin provides repair information to correct customer concerns of Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center \(DIC\) when Lightly or Moderately Accelerating Forcing an 8\-7 or 8\-6 Downshift.
- [21\-NA\-155](/bulletins/10249034.md), 2024-01-19, Service bulletin: TRAILER HITCHES; EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.
- [PIT5636D](/bulletins/10246007.md), 2023-12-04, Service bulletin: FUEL SYSTEM, GASOLINE; AIR BAGS; ELECTRICAL SYSTEM. This Preliminary information communicates an issues with a SES MIL and DTC P1005 and to replace the fuel pump driver control module with an updated part number.
- [21\-NA\-005](/bulletins/10239112.md), 2023-07-14, Service bulletin: ELECTRICAL SYSTEM; AIR BAGS. This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001\-1B due to corrosion.
- [PIP5925](/bulletins/10237682.md), 2023-06-13, Service bulletin: AIR BAGS. This Preliminary information communicates to the dealer technician that engineering is aware of a concern with the teen driver feature not operating.
- [PIT5509K](/bulletins/10237677.md), 2023-06-13, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; TRAILER HITCHES. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7\-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
- [PIT5509J](/bulletins/10236167.md), 2023-05-15, Service bulletin: ELECTRICAL SYSTEM; TRAILER HITCHES. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7\-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
- [17\-NA\-350](/bulletins/10235756.md), 2023-05-05, Service bulletin: EQUIPMENT; TRAILER HITCHES. This informational bulletin provides explanation of a normal condition of a loose\-fitting ball receiver in the gooseneck.
- [PIT4322N](/bulletins/10232819.md), 2023-03-13, Service bulletin: AIR BAGS; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in\-depth diagnostics are performed.

JSON: [/v1/bulletins/10187184](/v1/bulletins/10187184)

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