2008–2009 Tiffin Allegro Bus Recall: Service Brakes, Air
NHTSA campaign 09V127000 · Service Brakes, Air · filed Apr 16, 2009 · verified Jul 30, 2026
The defect
TIFFIN IS RECALLING 329 MY 2008-2009 ALLEGRO BUSES. THE REAR AXLE ABS MODULATING VALVE HAVE THE POTENTIAL TO BE WIRED INCORRECTLY. THE RIGHT AND LEFT MODULATOR VALVE HARNESS PIN COULD POSSIBLY BE REVERSED AT THE ABS ELECTRONIC CONTROL UNIT (ECU) CONNECTOR.
The risk
UNDER SLIPPERY ROAD CONDITIONS, WHEN IN THE ABS MODE, THIS WIRING PROBLEM HAS THE POTENTIAL TO CAUSE ONE SIDE OF THE REAR WHEELS TO LOCK WHILE CAUSING LITTLE OR NO BRAKING EFFORT ON THE OPPOSITE SIDE. THIS MAY RESULT IN A LOSS OF CONTROL AND A VEHICLE CRASH.
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 REMOVE THE REVERSED PINS FROM THE ECU CONNECTOR AND INSERT THEM BACK INTO THEIR CORRECT POSITION FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING APRIL 2009. OWNERS MAY CONTACT TIFFIN AT 256-356-8661.
OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO <A HREF=HTTP://WWW.SAFERCAR.GOV>HTTP://WWW.SAFERCAR.GOV</A> .
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Tiffin | Allegro Bus | 2008, 2009 |
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Other campaigns involving Tiffin vehicles
Source: NHTSA recall database, campaign 09V127000. Data last verified Jul 30, 2026.