There are 2 stored owner reports matching the driver assist & adas leading-label group for the 2021 Chevrolet Silverado in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)When I am driving over 40mph and accelerate my breaks lock up. It's almost like I hit something really hard. It has done this at 70 mph and almost cause an accident behind me. My truck doesn't have automatic emergency braking on it. I have read a form a lot of people are having this same issue with this year and make.
Upon returning home after a short drive I pulled into my garage and almost drove through the wall… I purchased parking assistance and it was not provided. The feature apparently failed and turned off at some point without clearly notifying the driver. I don’t know if it provided a silent notice that automatically dismissed but it certainly did not notify me when I really needed it… low speed. The park assist light is indeed off now when the vehicle starts. Clicking the button reports “Park Assist Off” even though it already appears off and is certainly not providing the intended safety feature. Clicking the button again does not turn the light back on but if clicked again it will again report it was disabled. This is strange and confusing for the driver. Using the infotainment screen one can toggle “Park Assist” off and the drivers info screen by the speedometer will finally say “park assist off”. Turning the feature back on in the infotainment screen actually turns the park assist button back on for about 5 seconds then it silently turns off and the driver is NOT warned that the system is not working. The driver is not properly warned of feature failure even though it appears the software knows it is not working. The little button goes out but the driver message screen does not warn the driver. This failure and poor awareness is a safety risk. Yes, we are unlikely to be parking super close to someone but we might indeed park near a GAS hot water heater or similar hazard in work trucks. The driver must know if safety features failure during driving. Otherwise they are potentially more hazardous than vehicles without them. Drivers will by design rely on these features and MUST be warned if the vehicle knows they have failed. I don’t love that the vehicle has already had a failure with only 1695 miles but this dangerous software concerns me more.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.