# Service bulletin 13386A

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: 10090069
- Published by NHTSA: 2017\-02\-01
- Manufacturer's number: 13386A
- Manufacturer's date: 2015\-03\-25
- NHTSA component: ENGINE

## NHTSA's summary

13386A \- SPECIAL COVERAGE \(REVISED WARRANTY TRANSACTION INFORMATION\). ON SOME VEHICLES EQUIPPED WITH A 6.6L DIESEL ENGINE \(RPO LGH\) AND VEHICLES EQUIPPED WITH A 6.6L DIESEL ENGINE \(RPO LML/LGH\), THE NITROGEN OXIDE \(NOX\) SENSOR MAY FAIL DUE TO CONTAMINATION BETWEEN THE TERMINALS IN THE SENSOR AND THE WIRE INTERFACE. THE CONTAMINATION MAY CAUSE THE NOX SENSOR SIGNAL TO BECOME UNSTABLE AND/OR OSCILLATE WHICH MAY CAUSE A MALFUNCTION INDICATOR LIGHT TO ILLUMINATE. DEALERS ARE TO REPLACE THE NOX SENSOR.

## 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

## Vehicles listed

- 2010 to 2011 CHEVROLET EXPRESS
- 2010 to 2011 CHEVROLET SILVERADO 2500
- 2010 to 2011 CHEVROLET SILVERADO 3500
- 2010 to 2011 GMC SAVANA
- 2011 GMC SIERRA 2500
- 2011 GMC SIERRA 3500

## Other bulletins for the same vehicles and component

- [00\-06\-01\-026R](/bulletins/11026017.md), 2025-12-03, Service bulletin: ENGINE. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- [23\-NA\-153](/bulletins/11024485.md), 2025-10-25, Service bulletin: ENGINE. 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.
- [22\-NA\-074](/bulletins/11014233.md), 2025-02-12, Service bulletin: ENGINE. 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\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. 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.
- [03\-06\-01\-023I](/bulletins/11012907.md), 2025-01-17, Service bulletin: ENGINE. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- [19\-NA\-219](/bulletins/11011900.md), 2024-12-17, Service bulletin: ENGINE. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- [21\-NA\-043](/bulletins/11011709.md), 2024-12-10, Service bulletin: STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. 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\-029K](/bulletins/11011205.md), 2024-12-04, Service bulletin: POWER TRAIN; STEERING; ENGINE. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- [03\-06\-01\-023H](/bulletins/11010544.md), 2024-11-14, Service bulletin: ENGINE. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- [01\-06\-01\-011Q](/bulletins/11010490.md), 2024-11-13, Service bulletin: ENGINE. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

JSON: [/v1/bulletins/10090069](/v1/bulletins/10090069)

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