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Service bulletin G-203356

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 id10081064
Published by NHTSA2016-09-28
Manufacturer's numberG-203356
Manufacturer's date2014-10-27
NHTSA componentEQUIPMENT

NHTSA's summary

14541 - CUSTOMER SATISFACTION. IF CERTAIN VEHICLES ARE DINGHY TOWED, THEIR TRANSFER CASE MAY BECOME LOCKED IN NEUTRAL WHEN PREPARING TO DISCONNECT THE VEHICLE ACCORDING TO THE PROCEDURES IN THE OWNER MANUAL. SPECIFICALLY, WHEN THE CUSTOMER CONNECTS THE BATTERY AND STARTS THE VEHICLE AS PART OF THE “DISCONNECTING THE TOWED VEHICLE” PROCEDURE (SEE OWNER MANUAL AT STEPS 3, 4, AND 5 OF THE “DINGHY TOWING”), A CODE IS SET THAT LOCKS THE VEHICLE’S TRANSFER CASE IN NEUTRAL. WHEN THIS OCCURS, THE DRIVER’S INFORMATION CENTER PANEL WILL DISPLAY A “SERVICE 4WD” MESSAGE AND THE VEHICLE WILL NEED TO BE TOWED TO A DEALERSHIP TO HAVE THE CODE CLEARED. DEALERS ARE TO PLACE A COPY OF AN UPDATED DINGHY TOWING SUPPLEMENT IN THE OWNER MANUAL. THIS INFORMATION REPLACES THE INFORMATION LOCATED UNDER “RECREATIONAL VEHICLE TOWING” FOUND IN SECTION 10 OF THE OWNER MANUAL. GM WILL MAIL THE SUPPLEMENT TO CUSTOMERS OF RECORD.

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

Equipment and accessories

Vehicles listed
CADILLAC ESCALADE2015
CADILLAC ESCALADE ESV2015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2015
CHEVROLET TAHOE2015
GMC SIERRA 15002015 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2015
GMC YUKON DENALI2015 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2015

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

Recalls for the same vehicles and component
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
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
PIT5448J2024-04-15. Service bulletin. This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT5401E2024-04-01. Service bulletin. Radio Inoperative with No Communication and DTC U0184
PIT5387B2024-04-01. Service bulletin. Radio HVAC IPC Blank Out When Operating A Snow Plow.
PIT5378C2024-04-01. Service bulletin. Radio Display May Momentarily Flicker When Vehicle Is First Started.
PIT5370C2024-04-01. Service bulletin. Unable to Insert Or Eject Discs.
PIT53622024-04-01. Service bulletin. OnStar And XM Antenna Malfunction Setting.
PIT53592024-04-01. Service bulletin. Radio Back Lighting Stays On After Key Off.