Fmvss 121/instrument cluster electric signal
Defect 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.'
Safety 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.
Corrective Action
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
Similar Recalls
Other recalls from Nabi Bus, Llc or involving Electrical System.
FAQ: Recall 08V278000
Your rights, the repair process, and what each field on this page means.
What is recall 08V278000?
NHTSA recall 08V278000 was issued by Nabi Bus, Llc on June 23, 2008. It addresses: Fmvss 121/instrument cluster electric signal. The recall affects approximately 203 vehicles, with the defect involving the Electrical System component.
How do I get this recall repaired?
Contact any authorized Nabi Bus, Llc dealer and reference NHTSA recall ID 08V278000 or the manufacturer campaign number 2008-02. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.