PIT5479E
Service Bulletin Details
Public Details for: PIT5479E
This preliminary information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the calipe
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| 2014 CHEVROLET SILVERADO 1500 |
| 2014 GMC SIERRA 1500 |
Bulletin No.: PIT5479E Published date: 01/18/2022 Preliminary Information PIT5479E Diagnostic Tip - Perceived Brake Fluid Leak at Caliper Piston Boot Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Cadillac Escalade Models 2015 - 2022 All All All All Chevrolet Colorado 2015 - 2022 All All All All Chevrolet Silverado 1500 2014 All All All All Chevrolet Silverado 2015 - 2022 All All All All Chevrolet Suburban 2015 - 2022 All All All All Chevrolet Tahoe 2015 - 2022 All All All All GMC Canyon 2015 - 2022 All All All All GMC Sierra 1500 2014 All All All All GMC Sierra 2015 - 2022 All All All All GMC Yukon Models 2015 - 2022 All All All All Supersession Statement This PI was superseded to update the Models. Please discard PIT5479D. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition / Concern A technician may comment that, during service, it appears there is fluid leaking from the brake caliper piston area. Shown below are examples of newer low mileage vehicles and older higher mileage vehicles. Recommendations / Instructions The substance shown is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed. NOTE: When diagnosing a brake fluid leak or certain DTC's for hydraulic brake circuit leaks, such as C05B0, do not confuse excessive assembly grease as a brake fluid leak. If it is uncertain what is seen is assembly grease, then clean off the excessive grease and apply the brake pedal 20 times and re-inspect for a leak. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. © 2022 General Motors. All Rights Reserved.