Service Brakes Related Problems of the 2020 GMC Sierra

Table 1 shows two common service brakes related problems of the 2020 GMC Sierra.

Table 1. Service Brakes related problems of GMC Sierra

Problem Category	Number of Problems
Brake Light On problems	1
Service Brakes problems	1

Brake Light On problem #1

Two issues broken valve spring caused engine to shut down, second service brake, brake failure light, service esc, service trailer brake messages causing brake failure.

Service Brakes problem #2

Brakes squeak. Started about 3000 miles. I have complained to dealer several times.

Service Brakes related problems in other GMC Sierra model year vehicles:

Brake Light Switch problems of the 1999 GMC Sierra
Power Assist Brake Vacuum problems of the 1997 GMC Sierra
Power Assist Brake Vacuum problems of the 1998 GMC Sierra
Power Assist Brake Vacuum problems of the 2000 GMC Sierra
Power Assist Brake Vacuum problems of the 2001 GMC Sierra
Power Assist Brake Vacuum problems of the 2015 GMC Sierra
Power Assist Brake Hoses, Lines/piping, And Fittings problems of the 1997 GMC Sierra

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✿ Fuel Economy of Sierra Vehicles

☘ Sierra Service Bulletins

⚑ Sierra Safety Recalls

☤ Sierra Defect Investigations