15203 - service update. this bulletin provides a service procedure to inspect and, if required, retighten...

Bulletin number

15206

Component

Service brakes, air: supply: hoses, lines/piping, and fittings

Summary

15203 - service update. This bulletin provides a service procedure to inspect and, if required, retighten the torque on the right-rear-brake-line-bracket bolt to the rear-axle on certain fort wayne assembly plant built 2014-2015 chevrolet silverado ld, 2015 chevrolet silverado hd, 2014-2015 gmc sierra ld, 2015 gmc sierra hd and 2015 gmc sierra denali ld vehicles. These vehicles may have been assembled with an incorrectly torqued right-rear-brake-line-bracket bolt to the rear axle. This condition could allow the brake line to wear against the rear-axle housing and cause a brake-fluid leak.

Owners of these vehicles have filed 1,089 complaints in the brakes category.