2004 Autocar WX, 2004 Autocar WXLL, 2004 Autocar WXR Recall: ON CERTAIN TRUCKS, THE AIR SUSPENSION HEIGHT CONTROL VALVE MAY NOT BE…
NHTSA campaign 04V594000 · Suspension · filed Dec 20, 2004 · verified Jul 30, 2026
The defect
ON CERTAIN TRUCKS, THE AIR SUSPENSION HEIGHT CONTROL VALVE MAY NOT BE INSTALLED CORRECTLY.
The risk
IN THE EVENT OF A SUSPENSION AIR BAG FAILURE OR RUPTURE OF THE AIR LINE, THERE COULD BE A LOSS OF AIR PRESSURE IN THE 'B' SYSTEM AIR RESERVOIR THAT SUPPLIES AIR PRESSURE FOR THE FRONT STEER AXLE BRAKES. THIS CONDITION WOULD INCREASE STOPPING DISTANCE OF THE VEHICLE AND UNDER CERTAIN CONDITIONS COULD RESULT IN A 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 INSPECT AND INSTALL A PRESSURE PROTECTION VALVE IF NECESSARY. THE RECALL BEGAN JANUARY 4 2005. OWNERS SHOULD CONTACT AUTOCAR AT 1-877-973-3486.
AUTOCAR RECALL NO. A-0404.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 Autocar WX recalls
- 2008–2010 Autocar WX and 4 other models — A worn parking brake control valve can leak air into the…
- 2008–2014 Autocar Acx and 2 other models — Condensation in the intake manifold may freeze during cold…
- 2005–2013 Autocar Acx and 2 other models — On the affected vehicles, the air brake systems were built…
- 2007–2009 Autocar WX and 1 other model — Structure
- 2008–2009 Autocar Acx and 2 other models — Parking Brake
Other campaigns involving Autocar vehicles
Source: NHTSA recall database, campaign 04V594000 (manufacturer number A-0404). Data last verified Jul 30, 2026.