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Service bulletin PIT-4902

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 id10032407
Published by NHTSA2010-03-17
Manufacturer's numberPIT-4902
Manufacturer's date2010-03-01
ReplacesPIT-4902B
NHTSA componentELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; TRAILER HITCHES; EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:TAIL LIGHTS

NHTSA's summary

GMC/CHEVROLET: TRAILER LIGHTS INOPERATIVE AFTER INSTALLING A HITCH. THE WIRES AT THE BACK OF THE VEHICLE FOR THE TRAILER LIGHTING DO NOT HAVE ANY POWER. THIS MAY BE NOTICED AFTER INSTALLING A NEW TRAILER HITCH, ON A VEHICLE WITHOUT THE RPO V92. *PE UPDATED 3/26/10. *PE UPDATED 11/17/10. *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, Lighting, Trailer hitch, Tail lights, Turn signals

Vehicles listed
CHEVROLET EQUINOX2010
GMC TERRAIN2010

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

Other bulletins for the same vehicles and component
PIT53022024-01-08. Service bulletin. Turn Signal Indicator Does Not Match Audible Warnings
PIT5302A2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have turn signal indicators on the Instrument Panel Cluster do not match the audible warnings. Technician will need to test the battery using the GR8. Technician should also verify the charging system is operating correctly.
PIT-50242011-03-12. Service bulletin. CHEVROLET/GMC: LOSS OF ENGINE POWER ACCELERATION INTERMITTED ELECTRICAL ISSUES INCLUDING DOOR LOCKS CYCLE IPC INDICATORS DASH LIGHTS FLASH. *PE