2018 Ram 3500 · symptom sheet
Brake warning light stays on
- 205owner reports
- 46,002median miles
- $1,100median quote
- 3involved a crash
Newest report Sep 25, 2026 · checked Oct 2, 2026
205 of the 664 reports of brake wear on the 2018 3500 describe brake light on.
Part of Brakes grind, pulse or wear early (664 reports) · also: ABS light on
Tick what matches of 205 reports
Brake light on on other 3500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2019, 2020, 2022, 2026.
What got replaced
Owners who name the part that was replaced mention the module (49 reports) and the brake fluid sensor (6 reports).
Recalls and investigations
One recall on the brakes covers the 2018 model year. A recall on the same system isn't always the same failure, so read the defect text.
The hydraulic control unit (HCU) may fail, which can cause the anti-lock brake (ABS), electronic stability control (ESC), and traction control systems to fail.
All 11 recalls on the 2018 Ram 3500, with the owner complaints on each recalled system
NHTSA investigations into the brakes on the 3500
Loss of brake performance. Closed mar 3, 2025.
What owners paid
22 of the 205 reports quote a price. Each dot is one quote. The middle half runs $800 to $1,500.
When it happens
The middle half of failures fell between 26,000 and 83,000 miles, from the 134 reports that gave a mileage.
What owners wrote
“RAM recall dates December 2024 on ABS failure. Received letter a long time ago. However, RAM still says parts are unavailable and it's been 18 months. This is ridiculous. Failure includes Cruise Control turned off. Audible sounds and warning lights on Dash.”
Filed May 4, 2026
“The warning light comes on and then the traction control goes off and the cruise control will disengage all at once. There is also no trailer brake assist. This has been verified by a dealer in Columbus, GA. It is constantly going off and on. The warning light and the warning bell are a constant distraction to the driver. The truck was bought and within 50K miles it started. No warning.”
Filed Apr 3, 2024 · 50,000 miles
“ABS/HCU intermittent warning lights/ alarm on dash. Renders ABS brakes inoperable at only 25000 miles”
Filed Oct 14, 2023 · 25,000 miles
“Rapid intermittent ABS warning light due to a diagnosed faulty ABS module. Module has been replace previously and now experienced second failure. Ram has no replacement parts available and now I am forced to drive with inoperable anti-lock brake system and a continuous warning chime.”
Filed Mar 24, 2023
Should you keep driving it?
This page can't tell you that. 3 of 205 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Adaptive cruise or lane keeping misbehaves 91 reports
- Wheel bearing, tires or wheels 34 reports
- Infotainment, screen or backup camera fails 25 reports