Service Brake Assist Message on intermittently

Mike Technician Glendora, California Posted   Latest  
2018 GMC Acadia SL 2.5L (A LCV) 6-spd (6T50)
Service Brake Assist Light
Service Parking Brake

Any guidance on what this warning might mean is much appreciated

Laird Owner/Technician
Waverley, Nova Scotia
Laird Default

Full system scan with a scanner should give codes and identify the system with the problem

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Caleb Diagnostician
Mishawaka, Indiana
Caleb Default

Have you done a full system scan with capable scan tool?

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Eric Owner/Technician
Edgerton, Wisconsin
Eric Default

It probably means there is a problem with one or more areas of the vehicle brake system. I would start by connecting a good scan tool and performing a full module scan for any stored trouble codes.

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Hollis Technician
Boulder, Colorado
Hollis Default

Have a look in the Owner / Operators Manual. It may suggest checking brake and tail light function, brake fluid level, stuff like that. Service Manual: System Description of Operation / Theory. Do an All Module scan. Record any and all codes. Reference related ABS / Brake System and Vehicle Dynamic's Control System for codes and Freeze Frame data. Inquire with owner / operator as to service…

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