2002–2004 Orion Orion Vii Recall: ON CERTAIN BUSES EQUIPPED WITH COMPRESSED NATURAL GAS FUEL CONTAINERS, THE…
NHTSA campaign 04V543000 · Engine and Engine Cooling · filed Nov 12, 2004 · verified Jul 30, 2026
The defect
ON CERTAIN BUSES EQUIPPED WITH COMPRESSED NATURAL GAS FUEL CONTAINERS, THE THERMAL PROPERTIES OF THE ORIGINAL EXHAUST BLANKET WERE INSUFFICIENTLY ACHIEVED WITH THE COMPONENT SUPPLIED. THE PERFORMANCE OF THE EXHAUST TEMPERATURE AND THE EXHAUST BLANKET WERE INCORRECTLY EVALUATED FOR THE SUPPLIED BLANKET.
The risk
THE EXHAUST BLANKET CAN BE DEGRADED AND LOSE INSULATING VALUE. SURROUNDING COMPONENTS CAN DEGRADE IN THE ENGINE COMPARTMENT AND CAN MALFUNCTION DUE TO THE EFFECT ON WIRES AND HOSES.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DEALERS WILL INSTALL A REPLACEMENT EXHAUST BLANKET. THE RECALL BEGAN JULY 17, 2005. OWNERS SHOULD CONTACT ORION AT 905-403-7832
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Affected vehicles
Related recalls
More Orion Orion Vii recalls
Other campaigns involving Orion vehicles
Source: NHTSA recall database, campaign 04V543000. Data last verified Jul 30, 2026.