Technical Service Bulletin N182176760 — 2014 GMC SAVANA

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

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Bulletin Details

TSB ID N182176760
Manufacturer
Vehicle 2014 GMC SAVANA
Component ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
Communication Date

Bulletin Summary

N182176760 - Emissions - General Motors has decided to conduct a voluntary emissions recall involving certain 2013-2015 Chevrolet Express and GMC Savana cutaway vehicles equipped with a 6.0L engine. The engine control module (ECM) in these vehicles does not adequately diagnose and account for certain types of oxygen sensor degradation or aging that might occur during the vehicle's life. This condition could result in elevated tailpipe emissions, with no illumination of the malfunction indicator lamp (MIL) to let the driver know there is a problem. Dealers are to reprogram the engine control module with a modified diagnostic calibration.

About Technical Service Bulletins

A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.

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