Nov 19, 2024Brakes
The antilock braking system is not functioning properly. The sensor for the anti-lock brake control pump module is defective
NHTSA ODI 11626142
Home · 2019 GMC Sierra 2500 Hd · Complaints
What 31 owners told NHTSA about the 2019 GMC Sierra 2500 Hd
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
All (31)Crash / fire / injury (3)Electrical system (8)Engine (5)Brakes (4)Fuel system (3)Fuel System, Diesel (3)Engine & cooling (2)Equipment (2)Lights (2)Tires (2)Transmission & drivetrain (2)
4 of 31 complaints match · Brakes · clear filters
Jul 21, 2023Electrical systemBrakes
DEFECTIVE TRAILER BRAKE SWITCH ,WHICH POSES A RISK TO MOTOR VEHICLE SAFETY IF YOU ARE TOWING A TRAVEL TRAILER, WHERE BRAKES FAIL LOCK UP IS POSSIBLE DANGEROUS TO PULL
NHTSA ODI 11533680
Jul 14, 2023Electrical systemBrakes
TRAILER BRAKE SYSTEM NEEDS SERVICE, WARNING LIGHT CAME ON AND BEEPING LOUD STARTER LAST MONTH 6-2023 , AND MAYBE THE BRAKE CONTROL MODULE IS BAD ? CODE C1117 CAME UP
NHTSA ODI 11532294
Oct 25, 2022Brakes
I purchased a 2019 GMC Certified 2500 Diesel Truck with 48000 miles I started getting alerts on my dash stating TRAILER BRAKE SYSTEM over and over. I would press the dismiss button but it would not stop from appearing and dinging over and over. I took vehicle to dealer ship since I have remaining bumper to bumper and extended warranty coverage. To my dismay I find out the Dash Trailer Brake System switch is faulty. Good thing I had an extended warranty since the bumper to bumper does not cover electrical. While truck was still under warranty the same alert came on but the GMC dealership did not find and issues. I feel the trailer brake system was defective from the start. I am being force to pay over $300.00 out of my pocket since my extended warranty did not cover the entire cost. SHAME on you GM for putting cheap quality parts on expensive trucks...
NHTSA ODI 11490822
Working with the data? Download all 31 complaints as CSV · fetched from NHTSA July 19, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2019 GMC Sierra 2500 Hd verdict →