Two of the four wheels were losing air and tested locally. It was determined air was leaking from each of the two rims in a similar location. Note-air was not leaking from the tire or the seal between the tire bead and rim. Instead, the rim itself appears to have a latent defect causing a slow leak. I contacted a local GMC dealer to see about warranty coverage or manufacture interest in assisting with this safety issue. Vehicle is out of warranty and GM was willing to participate at 10% of new replacement cost, see attached. Two of the four rims were tested for the defect. Both rims exhibit the same defect. That 1/2 of the rims on my one truck are leaking, it suggests a larger defect in the standard rims. I am concerned about motorist safety resulting from defective rims.

- Spanish Fork, UT, USA