Disclaimer: This site is intended for informational purposes only. Recall listings may be incomplete — not all recalls issued by Transport Canada or NHTSA may be reflected here, and data is updated periodically rather than in real time. Severity ratings are automatically estimated from official recall language and may not accurately reflect the true risk to your vehicle. Always verify open recalls and repair status directly with your dealer or through the official Transport Canada and NHTSA recall portals.

As an Amazon Associate, I earn from qualifying purchases.

Learn more about how we estimate severity ratings →

VIN Lookup Learn Visualizations Recalls

GMC M9500 Recalls by Year — Canada & USA – Major League Recalls

Home
GMC
M9500

GMC M9500 Recalls

1 recall across 1 model year

Summary

The GMC M9500 has 1 recall affecting the 1975 model year, where contaminants in the air brake system can cause pistons inside the anti-lock relay valves to swell, stick, and block air from reaching the brake chambers, resulting in reduced or lost braking power on the affected axle. When the piston jams in the valve, the brakes on that axle may not respond fully or at all, significantly extending stopping distances and raising the risk of a collision.

19751 recall

Latest: Jul 1979

Severity Distribution

Severity ratings are estimated from recall language and may not reflect the full risk.

Learn more about how we estimate severity ratings →

Looking to upgrade?

Find accessories for your GMC M9500 at Amazon.

View on Amazon →

We may earn a commission for purchases made through these links.