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Gillig LOW Floor Recall 16V931: Gas leak detection may fail silently on CNG buses

NHTSA campaign 16V931, reported December 23, 2016, 451 vehicles potentially affected.

What this recall means for you

Certain 2015-2016 Gillig Low Floor compressed natural gas transit buses may have a fire suppression system panel whose gas detection electronics can be disabled without warning the operator. When this happens, the system may fail to show that a natural gas (methane) leak is present, and the driver will not receive a fault code indicating the gas detection has been turned off.

This failure raises the risk of asphyxiation, fire, or explosion, since a methane leak could go unnoticed. The recall covers buses built between September 1, 2015, and December 5, 2016, equipped with Amerex SafetyNet panel/controller units, as well as replacement panels supplied under warranty.

Gillig will notify owners, and Amerex representatives will replace the Operator Display Panel/Controllers free of charge. The recall began January 20, 2017. To ask about your bus, contact Gillig customer service at 1-800-735-1500, and check your vehicle identification number for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 16V931Gillig LLC
Component
FUEL SYSTEM, OTHER
Problem
Gillig LLC (Gillig) is recalling certain model year 2015-2016 Low Floor compressed natural gas (CNG) transit buses manufactured September 1, 2015, to December 5, 2016, equipped with Amerex SafetyNet fire suppression system panel/controller units. These buses have gas detection electronics that may be disabled without providing the operator with a warning of a system malfunction. Affected display panel/controller units were also provided as replacement parts for warranty claims, part numbers 16389, 24109, 24918, 24926 and 24927.
Risk
If not corrected, the fire suppression systems on certain CNG-powered buses may fail to indicate the presence of a natural gas (methane) leak. In such cases, the driver will not receive a fault code indicating that the Gas Detection electronics have been disabled. This may increase the risk of asphyxiation, fire, or explosion.
Remedy
Gillig will notify owners, and Amerex representatives will replace the Operator Display Panel/Controllers, free of charge. The recall began January 20, 2017. Owners may contact Gillig customer service at 1-800-735-1500.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Gillig LOW Floor20152016