There isn’t a consumer-accessible brake service mode on the 2020 Silverado. If a service mode is required, a dealer or qualified technician uses GM's diagnostic tools to access it—owners should not attempt to enable or disable ABS or brake control functions themselves.
Understanding brake service mode and its purpose
Brake service mode is a technician-only state used to temporarily bypass certain automatic braking systems during specific maintenance procedures. It is not listed as a feature in the Silverado owner’s manual, and misuse can trigger fault codes or compromise safety systems.
Who typically uses it
Only technicians with factory diagnostic equipment and software can place the system into service mode, following GM service procedures.
Can you enable brake service mode on a 2020 Silverado?
There is no published, owner-accessible method to enable brake service mode on this vehicle. Any such operation would require dealer tools and a service appointment.
Before any brake work that might require such a mode, consult the service manual or your dealer to confirm whether service mode is needed and how it should be performed.
What technicians typically do for brake service tasks
Below is a high-level outline of the steps a trained technician might follow when brake maintenance requires accessing a service mode. The exact steps depend on the vehicle's brake system configuration and the service bulletin being followed.
- Connect and authenticate with GM's diagnostic tool (for example, Tech 2, MDI, or newer equivalents) and access the ABS/Brake control module.
- Enter any GM-recommended service mode in the software, if applicable, and monitor system readouts to ensure no faults are present.
- Perform the required maintenance (pad/rotor replacement, bleeding, calibration, etc.) per GM service documentation.
- Exit service mode, reset any applicable codes, and verify that all braking functions are operating normally before returning the vehicle to service.
Because this is specialized work, attempting to perform it outside a properly equipped shop can result in inaccurate calibrations or safety-system fault codes. If you suspect your brakes need service, the safest course is to schedule a professional inspection.
Safety considerations and practical guidance
For most owners, standard brake maintenance is straightforward and does not require any special mode. Always:
- Park on a level surface, engage the parking brake, and chock wheels before inspecting brakes or lifting the vehicle.
- Use only the correct replacement parts and torque specs as outlined in GM's service documentation.
- Never disable or circumvent ABS, traction control, or other safety systems yourself.
If you’re unsure, contact a GM dealer or an independent shop with GM service tools to ensure brakes are serviced correctly and safely.
Summary
In essence, there is no owner-activated “Brake Service Mode” for the 2020 Chevy Silverado. Any mode intended to facilitate brake service is handled by trained technicians with factory tools, following GM service procedures. For routine brake maintenance, rely on standard service steps and professional support to keep your braking system safe and reliable.
How do I turn on brake maintenance mode?
And your parking service light will continue to flash. And now you're good to do your brakes. Once you're done doing your brakes to get that back off you hold the brake.
How to put a 2020 Silverado 1500 into brake service mode?
Once more and you'll see that that continues to flash. I'm not touching anything at this point i've released. Everything but you'll see that the park brake. Service is now flashing.
How to take a Chevy Silverado out of brake service mode?
It. Hold this for about 10 seconds. And then your maintenance mode will deactivate. And the little light will go off on the dash.
How to set GM parking brake service mode without scanner?
And hold the brake. Then you're going to press and hold the parking brake over here for roughly 10 seconds. Until you see a yellow flash up there on the dash. And it'll continually flash.