Mil-On/Check Engine Lamp (CEL), Antilock Brake System (ABS) Lamp, Diagnostic Trouble Code (DTCs).
full bulletin at NHTSA ↗2026 RAM 3500 brakes problems
moderate 3 complaints filed with NHTSA · avg repair $450 · see brakes across all vehicles →
Complaints
3
Recalls
0
Avg fix
$450
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering brakes on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Mil-On/Check Engine Lamp (CEL), Antilock Brake System (ABS) Lamp, Diagnostic Trouble Code (DTCs).
full bulletin at NHTSA ↗Flash: Brake System Control Module (BSCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C0037-2F - Left Rear Wheel Speed Sensor - Signal Erratic. ● C003A-2F - Right Rear Wheel Speed Sensor - Signal Erratic. Customers may also comment on the following: ● When either or both DTCs are set the ABS light will turn on and vehicle will lose ABS, Trailer Sway Control (TSC) and Electronic Stability Control (ESC) functions. , new LOPs, new Claims Data info, new
full bulletin at NHTSA ↗MODULE - TRAILER BRAKE & TOWING CONTROL
full bulletin at NHTSA ↗Flash: Central ADAS Decision Module (CADM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set at least one of the following Diagnostic Trouble Codes (DTCs): ● C2203-00 - Current VIN Missing/Mismatch. ● C008E-00 - ECU Internal Performance with Environmental Data Decode Byte: APP_FATAL_ERROR_APP_CONFIGURATION_ERROR_FAULT. Customers may also comment on one or more of the following: ● The Instrument Panel Cluster (IPC) is displaying one or more of the following messages: ○ "ACC/FCW Unavailable Service Required". ○ "ACC/FCW Limited Functionality". ○ "Active Lane Management Limited Functionality." ○ "Active Lane Management Unavailable
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
The contact owns a 2026 Ram 3500. The contact stated that while driving at an undisclosed speed, the ABS and several unknown warning lights were illuminated. The message "DANGER" warning light flashed repeatedly and extremely fast on the instrument panel. The vehicle was taken to the dealer, where it was diagnosed, and determined that an unknown software update was needed. The vehicle was…
I made appointment online at Hadadd Dodge to repair this. They said they could only order 1 set if parts per week and they have to repair the trucks on the lot first then will get to us. They canceled the appointment and put us on a waiting list. I made them aware we tow a 5th wheel trailer frequently with this truck.
The contact owns a 2026 Ram 3500. The contact stated that while driving at an undisclosed speed, the check engine, 4WD, ABS, park sensors, and several other unknown warning lights illuminated. The vehicle was taken to the dealer, who replaced the speed sensor for the rear wheels; however, the failure persisted, and the transmission failed to recognize that the gear selector was in park(P).…
Had brakes trouble with your 2026 RAM 3500?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the brakes problem on the 2026 RAM 3500?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $450 and most owners catch it before it causes a breakdown.
At what mileage does the brakes typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to brakes?
No active recalls currently cover brakes issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2026/RAM/3500.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.