Vehicle recall 08V278000 · June 23, 2008

Blue Bird C4RE, L4RE and 1 more model

The PRX1 module is a device which transmits an electric signal to the instrument cluster, which is converted into an air system pressure reading on the dash mounted guage.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary: Nabi is recalling 239 my 2002-2007 blue bird C4RE and L4RE transit buses equipped with a 'PRX1' module. The PRX1 module is a device which transmits an electric signal to the instrument cluster, which is converted into an air system pressure reading on the dash mounted guage. On certain modules, tis reading is inaccurate causing the displayed pressure to be outside the tolerance of federal motor vehicle safety standard no. 121, 'air brake systems.'
Consequence: If the air brake system develops a leak, the bvehicle operator may not be aware due to the inaccurate dash reading. If a leak occurs, the safety/'emergency brakes could set without adequate warning, applying the brakes partially, which could result in loss of vehicle control, possibly causing a crash.
Remedy: Nabi will provide instructions to vehicle owners/end-users to add a specific wire to the module, correcting the problem. The recall began on August 5, 2008. Owners may contact nabi at
Notes: Nabi recall no. 2008-02.CUSTOMERS may contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov.

Recall details

NHTSA campaign: 08V278000
Reported to NHTSA: June 23, 2008
Filed by: NORTH AMERICAN BUS INDUSTRIES, INC.
Manufacturer campaign: 2008-02
Owner notification: August 5, 2008
Vehicles potentially affected: 203
Initiated by: the manufacturer
Components: Electrical system › Instrument cluster/panel

Recall 08V278000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Blue Bird C4RE (2002-2007): 2007, 2006, 2005, 2004, 2003, 2002
Blue Bird L4RE (2002-2007): 2007, 2006, 2005, 2004, 2003, 2002
Blue Bird M4RE (2002-2007): 2007, 2006, 2005, 2004, 2003, 2002

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