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Service bulletin SC-14652

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 id10058722
Published by NHTSA2015-11-06
Manufacturer's numberSC-14652
Manufacturer's date2015-07-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, DIESEL

NHTSA's summary

CHEVROLET/GMC: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. SOME TRUCKS WILL EXPERIENCE AN INCREASED HEATER RESISTANCE OR REDUCTANT SYSTEM PERFORMANCE DUE TO AN OFFSET IN TEMPERATURE SENSOR OF DIESEL EMISSION REDUCTION FLUID TANK RESERVOIR, CAUSING THE MALFUNCTION INDICATOR LAMP TO ILLUMINATE. MODEL 2010-12 EXPRESS, SAVANA, 2011-12 SILVERADO HD, SIERRA HD. *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

Engine, Exhaust and emissions, Fuel system

Vehicles listed
CHEVROLET EXPRESS2010, 2011, 2012
CHEVROLET SILVERADO
CHEVROLET SILVERADO 1500 HD2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002004 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2010, 2011, 2012
GMC SIERRA
GMC SIERRA 1500 HD2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002005 (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
20143522014-08-19. Fuel System
14V5000002014-08-13. FUEL SYSTEM, OTHER
20132062013-06-12. Fuel System
13V2250002013-05-15. FUEL SYSTEM, OTHER
13V0800002013-03-08. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES
20061952006-08-04. Fuel System
06V2890002006-08-03. ENGINE AND ENGINE COOLING
20042812004-08-05. Fuel System
04V3760002004-08-02. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

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
00-06-01-026R2025-12-03. Service bulletin. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
23-NA-1532025-10-25. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
25-NA-0522025-04-10. Service bulletin. This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.
22-NA-0742025-02-12. Service bulletin. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
21-NA-0432025-02-12. 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.
09-06-04-026Z2025-01-23. Service bulletin. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
03-06-01-023I2025-01-17. Service bulletin. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
19-NA-2192024-12-17. Service bulletin. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
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.
04-06-01-029K2024-12-04. Service bulletin. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.