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Ram 3500 abs comes on

763 of the 2,369 owner complaints about the Ram 3500 describe aBS light or ABS activating, most of them for the 2018 model year.

owner complaints
763
worst model year
2018
typical repair cost reported
$1,200
typical mileage
58,000
Is there a fix? There are 5 recalls for this area of the car. See below

By model year

Often reported together

Adaptive cruise 217Check engine light 27Brake failure 27Spongy pedal 5Warning lights 4Overheating 3Fire or smoke 3Won't start 2

Trouble codes mentioned

C0020 65U1412 5C2200 2U1408 1U0403 1U0402 1P2560 1P2509 1P242F 1P203F 1

What owners say

Filed Nov 5, 2026 · Brakes · MD

[XXX] Chrysler Dodge Ram at [XXX] REFUSED to fix the hcu/abs recall due to truck being too tall. The truck sits at 8'5" tall. They seem to have a habit of doing this based on their reviews and talk from other shops. This is unacceptable and are required by law to fix these trucks. The truck is currently at another dealer without issue getting the recall repaired. Truck has never been "too tall" for any other shops in the area. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 28, 2026 · Acceleration, Brakes · CA

ABS System Component Failure: My 2017 RAM 3500 truck was diagnosed with a failed ABS pump motor on XXX, the pump was replaced per dealer procedure and since the code did not clear the procedure was to replace the ABS Control Module. I was advised at the time that ABS Module was not availble at any of the RAM dealers in the [XXX] and a warranty recall was pending. On XXX I was advised the recalled part was in stock for installation. On XXX, the HCU (Hydraulic Contol Unit) pump was installed, however the ABS system still has an active fault code C2200-49, indicating a defective ABS control module, which is bolted directly to the HCU. The dealer will not replace the ABS module under the terms of the recall, and the replacement part is still on restriction through the STAR Center. It is my opinion that driving for 2 years with a failed HCU caused damage to the ABS module and needs to be included in the C4B recall. Bottom line the truck is still not safe to drive without Traction Control and ABS Brake Control. I have a case pending with a FCA Level 2 manager to get this part expedited and cost coverd by FCA. Your help would be greatly appreciated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 26, 2026 · Brakes · AL

There was a Recall C4B/the federal safety agency 24V‑896 on my 2018 Ram 3500 truck back in 2024. The part HCU/ABS unit that was recalled went out on my truck on or about 6/23/2025. Went to dealership on 6/25/2025 they told me that they have an old model part NOT the new updated recall part in stock. Due to safety concerns, I agreed for them to fix my truck, and they explained to me that FCA US LLC would reimburse me the cost, which I did receive the cost back. I have on many different occasions emailed them through their web site asking to be notified about the replacement part for my truck, when available. I have never received any notice until 10/19/2026 stating that my truck has been fixed as of 9/28/2026 and there was nothing else I needed to do. After first call with FCA recall center, they said that my truck was fixed according to their service records. I told them that the new replacement part was never installed and that someone made an error on their end. After talking with them I told them I wanted this escalated to someone higher up. A supervisor called me today 10/21/2026 and basically said the same thing that according to their system, part was fixed. The invoice that I submitted to them for the reimbursement says that the recalled NEW replacement part was not available on 6/25/2025. I have all the documents needed to prove that the parts were never changed with the updated part. I asked them to show me documentation on what dealership said my part was fixed, they said I would have to talk to my dealership, so I did twice with Opelika Ram dealership and they have no record other than the old part being put on 6/25/2025. FCA recall center refused to give me any document or tell me who closed out this recall C4B/the federal safety agency 24V‑896. They however said that they would give me a 2-year warranty on the old part starting on 9/28/2026; it took 7 years for the original part to go bad. My truck is still a safety concern because this Hydraulic Control Unit /ABS can go out at any time.

Filed Oct 16, 2026 · Brakes · 109,000 miles · MI

The contact owns a 2018 Ram 3500. The contact received a notification of the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part required for the recall repair was not yet available. The ABS and Traction Control warning lights illuminated. Four separate local dealers were contacted. The manufacturer was made aware of the failure. The failure mileage was approximately 109,000.

Filed Oct 14, 2026 · Brakes · 84,500 miles · MD

The contact owns a 2017 Ram 3500. The contact stated that while driving at an undisclosed speed, the vehicle intermittently lost Anti-Lock Brake System (ABS), Electronic Stability Control (ESC), and cruise control functionality. The contact stated that the systems later became completely inoperable and could not be engaged. The contact inspected and diagnosed the vehicle, retrieving multiple diagnostic trouble codes associated with the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic). The dealer was contacted. The manufacturer was notified of the failure via telephone, and a case was filed. The contact was referred to the federal safety agency Hotline for assistance. The failure mileage was approximately 84,500.

Filed Oct 5, 2026 · Brakes, Electrical · NJ

Since first test driving the truck in March of 2025, there was an issue with the ABS system warning coming on. When that happens, it also disables 4 wheel drive, electronic stability control, cruise control and trailer brakes. The first 3x it happened while NOT towing at about 45mph. Other times it happened while towing a 16,000# trailer which caused vehicle control issues when braking. I did however discover, in a panic, that the manual trailer brake lever still works. The cause of the ABS system shut down was determined to be code: C0037-2F (Left Wheel Speed Sensor Signal Erratic) It has be brought in to the dealer for repair at the following mileages: 4,478, 4,699, 13,790, 14,745 and 16,487 miles. Since then, the wheel speed sensor has been replaced along with the "tone ring" and other components. Most recently, it was determined that the main wiring harness was pinched and (2) wires for that circuit were shorted. The dealer ran (2) new wires outside the wiring harness. The new wire were also NOT sleeved as per SAE vehicle wiring specifications. They "said" they removed the fuel tank to access the repair, however forensic evidence does not support that. There is still undercoating on the bolt threads. It should have been disturbed or worn off when removing the fasteners. After the repair was made, the problem once again came back while towing a smaller 5,000# trailer on 10/4/26 at approximately 16,654 miles. The failure has occurred about 8 times now since the initial repair was made.

Filed Sep 30, 2026 · Brakes · 20,000 miles · TX

The contact owns a 2018 Ram 3500. The contact received notification of the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the ABS, cruise control, and ESC warning lights were illuminated. The cruise control failed to activate while the warning lights were illuminated. The dealer was contacted and confirmed that the remedy was not yet available. The manufacturer was made aware of the issue via email, and the contact received responses that the remedy was not yet available. The failure mileage was approximately 20,000.

Filed Sep 28, 2026 · Brakes · 120,000 miles · OR

The contact owns a 2017 Ram 3500. The contact received notification of the federal safety agency Campaign Number: 24V896000 (SERVICE BRAKES, HYDRAULIC); however, the part to do the recall repair was unavailable. The manufacturer was contacted and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the vehicle had experienced a failure, causing the ESC and ABS warning lights to remain illuminated. The failure mileage was 120,000.

Filed Sep 25, 2026 · Brakes · MI

HCU failure, ABS failure, stability control affected

Filed Sep 25, 2026 · Acceleration, Brakes · 50,000 miles · WI

The contact owns a 2018 Ram 3500. The contact stated that the ABS warning light intermittently flashed on the instrument panel while driving at various speeds. The contact stated that an audible chime was sounded with the warning light illuminated and the ABS, traction control, and cruise control features became inoperable. The contact stated that the failure almost caused two crashes due to the lack of the ABS functionality. The contact then received notification of the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic). The dealer was notified of the recall; however, the contact was informed that the part was on backorder. The manufacturer was notified of the failure, but the contact was given the same information as the dealer. The failure mileage was approximately 50,000.

Related recalls

Service brakesReported August 18, 2025 · 2,885 vehicles affected
What is wrong
Chrysler (FCA US, LLC) is recalling certain 2026 Ram 3500, 3500 Cab Chassis, 2500, 4500 Cab Chassis, and 5500 Cab Chassis vehicles. The instrument panel may display an incorrect brake system warning light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Control and Displays."
Risk
An incorrect warning light can fail to alert the driver to critical safety information, increasing the risk of a crash.
Remedy
Dealers will replace the instrument panel cluster, free of charge. Owner notification letters were mailed September 9, 2025. Owners may contact Chrysler customer service at 800‑853‑1403. Chrysler's number for this recall is 79C.

Recall number 25V530000 · Recall details

Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/moduleReported November 27, 2024 · 317,630 vehicles affected
What is wrong
Chrysler (FCA US, LLC) is recalling certain 2017-2018 Ram 2500 Pickup, Ram 3500 Pickup, 3500 Cab Chassis, 4500 and 5500 Cab Chassis vehicles. 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.
Risk
A loss of anti-lock brakes, electronic stability control, or traction control can increase the risk of a crash.
Remedy
Dealers will replace the brake HCU, or replace the HCU motor, free of charge. Owner notification letters were mailed beginning January 9, 2025. Owners may contact FCA customer service at 1‑800‑853‑1403. FCA's number for this recall is C4B.

Recall number 24V896000 · Recall details

Service brakes, air: antilock: control unit/moduleReported June 6, 2024 · 211,581 vehicles affected
What is wrong
Chrysler (FCA US, LLC) is recalling certain 2022 Dodge Durango and Ram 2500 and 3500 vehicles. Due to a software malfunction, the ABS control module may disable the electronic stability control system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems."
Risk
Driving with a disabled electronic stability control system can increase the risk of a crash.
Remedy
Dealers will update the ABS control module software, free of charge. Owner notification letters were mailed beginning July 11, 2024. Owners may contact FCA US, LLC customer service at 1‑800‑853‑1403. FCA US, LLC's number for this recall is 55B.

Recall number 24V415000 · Recall details

Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/moduleReported March 10, 2022 · 370,437 vehicles affected
What is wrong
Chrysler (FCA US, LLC) is recalling certain 2019-2022 Ram 2500 and 2021-2022 Dodge Durango vehicles, and 2019-2022 3500 cab chassis with GVWR less than 10,000 lbs. The ABS control module software may prevent the electronic stability control (ESC) malfunction indicator light from illuminating during certain conditions. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems."
Risk
An ESC malfunction indicator light that fails to illuminate during an electronic stability control problem can increase the risk of a crash.
Remedy
Dealers will update the ABS control module software, free of charge. Owner notification letters were mailed March 29, 2022. Owners may contact FCA US, LLC customer service at 1‑800‑853‑1403. FCA US, LLC's number for this recall is Z20.

Recall number 22V140000 · Recall details

Service brakes, hydraulic: foundation components: disc: caliperReported August 29, 2019 · 5,495 vehicles affected
What is wrong
Chrysler (FCA US LLC) is recalling certain 2019 Ram 2500, 3500 and 3500 Cab Chassis trucks. The brake calipers may have been manufactured with an incorrect assembly fluid, which can cause the caliper's rubber seals to swell.
Risk
The swollen seals can cause the brakes to drag, potentially overheating the brakes and increasing the risk of a crash.
Remedy
FCA US will notify owners, and dealers will replace the front brake calipers and brake hoses and bleed the brakes, free of charge. The recall began October 24, 2019. Owners may contact FCA US customer service at 1‑800‑853‑1403. FCA US' number for this recall is V98.

Recall number 19V635000 · Recall details

Questions about the Ram 3500 abs

Why does the abs come on in the Ram 3500?

Owners who report it most often also describe adaptive cruise control problems, check engine light and brake failure, and the codes they mention most are C0020, U1412 and C2200.

Which Ram 3500 years have aBS light or ABS activating problems?

The model years with the most reports are 2018 (553 complaints), 2017 (150 complaints) and 2025 (13 complaints).

How much does it cost to fix ABS light or ABS activating on the Ram 3500?

Owners who mentioned a price put the repair at about $1,200 (median of 44 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.

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