Service bulletin 15203A
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10089965 |
| Published by NHTSA | 2017-01-31 |
| Manufacturer's number | 15203A |
| Manufacturer's date | 2015-06-15 |
| NHTSA component | SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS |
NHTSA's summary
15203A - SERVICE UPDATE (REVISED SERVICE PROCEDURE). 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.
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Brakes, Brake hoses and lines
| CHEVROLET SILVERADO 1500 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| CHEVROLET SILVERADO 2500 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 1500 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 15206 | 2017-01-31. Service bulletin. 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. |
|---|