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Service bulletin PIT5549

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10113462
Published by NHTSA2017-08-15
Manufacturer's numberPIT5549
Manufacturer's date2017-02-28
NHTSA componentEQUIPMENT:MECHANICAL; STRUCTURE

NHTSA's summary

This Preliminary information communicates a customer concern ofSIR light on with any DTC set in the SDM. During diagnostics a technician may find water in the SDM connector and is unable to locate a leak path. Dealer is instructed to inspect X150 connector for being broken allowing water into the body harness. Dealer to repair affected connector or harness as needed.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame, Equipment and accessories

Vehicles listed
CHEVROLET SILVERADO2015, 2016, 2017
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA2017
GMC SIERRA 15002014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
21V4960002021-07-01. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
18V2670002018-04-26. EQUIPMENT
13V5440002015-10-30. EQUIPMENT:OTHER:LABELS
14V3450002014-06-18. EQUIPMENT; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL
20142162014-06-06. Accessories

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
19-NA-2552025-04-10. Service bulletin. This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
05-08-51-001L2025-03-08. Service bulletin. This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
22-NA-2442025-02-12. Service bulletin. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
10-08-110-001L2025-02-11. Service bulletin. This service bulletin provides information on proper use of floor mats.
17-NA-3502025-02-01. Service bulletin. This informational bulletin provides explanation of a normal condition of a loose fitting trailer hitch receiver in the gooseneck hitch ball.
21-NA-0432024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
12-08-51-002R2024-12-10. Service bulletin. This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
19-NA-2552024-11-15. Service bulletin. This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
12-08-51-002Q2024-11-14. Service bulletin. This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
22-NA-2442024-11-13. Service bulletin. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.