Ram 1500 ABS Module Recall: What 75B Covers & What It Doesn’t

Hit slick pavement. Watch the ABS and ESC lights stay on. That Ram just lost its safety net. For Ram 1500 owners, the big ABS module recall is 24V-653, Stellantis campaign 75B. It covers certain 2019 and 2021–2024 trucks because ABS module software may shut down electronic stability control.

That matters when the truck slides, tows, or panic-brakes. NHTSA lists 1,227,808 affected pickups under the campaign. The 2020 model year sits outside this specific recall, but that does not clear it from ABS, HCU, wheel-speed, or module faults.

A 2025 Ram can light the same dash for a different reason. 24V-794 / 97B points to a damaged front wheel bearing encoder ring, not the ABS software. If the VIN shows an open recall, let the dealer handle the campaign before buying a module.

1. Check 75B first, then chase the hardware

The ABS recall most owners mean is 24V-653

The big Ram 1500 ABS module case is NHTSA 24V-653, Stellantis recall 75B. It covers certain 2019 and 2021–2024 Ram 1500 trucks. The fault sits in ABS control module software.

NHTSA lists 1,227,808 potentially affected trucks in this campaign. The defect can disable electronic stability control, which puts the truck out of line with FMVSS 126. Base brakes may still work, but the skid-correction layer can drop out.

That changes the first repair move. 75B calls for an ABS control module software update at the dealer. A new ABS pump or used module comes later only if the truck has a separate hardware fault.

The 2020 gap needs a clean VIN check

The 2020 Ram 1500 is not part of this specific 24V-653 / 75B recall group. The campaign names 2019 and 2021–2024 trucks. That gap catches owners who search by symptom instead of VIN.

A 2020 truck can still have ABS lights, ESC faults, HCU trouble, wheel-speed codes, or a failed module. It just does not get the 75B flash by model year alone. If the VIN is outside the campaign, the scan report becomes the repair map.

Keep these Ram recalls in separate lanes

If the truck falls under 75B, start with the dealer flash. If the recall is closed and the lights stay on, scan the ABS module before pricing a pump, hub, or controller.

2. The software fault reaches the tires

The ABS module sits upstream of the skid correction

The ABS module does more than pulse brake pressure during a panic stop. On these Ram 1500 trucks, it feeds wheel-speed and brake-control logic to ESC, traction control, adaptive cruise, and forward collision warning. When that module faults, the truck can lose several driver-assist layers at once.

Base hydraulic braking may still remain. Press the pedal, and the calipers can still clamp. The missing piece is computer-controlled brake correction at individual wheels when the truck starts to slide.

That matters in a 5,000-pound pickup with a tall body and a rear axle that can get light when unloaded. Without ESC, the truck has fewer tools to catch yaw, wheel slip, or a fast lane-change mistake. Wet pavement exposes the gap first.

FMVSS 126 is why 75B became a recall

FMVSS 126 requires electronic stability control to work during acceleration, coasting, deceleration, and braking. The Ram 1500 24V-653 filing says the ABS software fault may disable ESC under certain conditions. That made the defect a federal noncompliance, not a routine dealer update.

ESC works by comparing where the driver points the truck against where the truck actually moves. Steering angle, wheel speed, yaw, and brake input all feed that decision. If the ABS module drops into a fault state, the brake correction side loses authority.

The recall does not say the brake pedal goes dead. It says the electronic safety layer can quit. In rain, snow, gravel, or a panic swerve, that leaves tire grip and driver correction doing the whole job.

The dash usually tells on the fault

Drivers may see the warning stack before they feel anything wrong. ABS, ESC, traction control, adaptive cruise unavailable, and forward collision warning unavailable can show up together.

Reuters reported that these warning lights can illuminate when the affected systems stop working, while foundational braking remains functional.

That warning stack matters because it points past a single bulb or issue light. Multiple disabled systems can trace to the ABS module because those systems share wheel-speed and brake-control data. A low-voltage event, stored ABS fault, or failed module check can keep the dash lit after startup.

Do not diagnose 75B by the lights alone. Pull ABS codes, verify recall status, and check live wheel-speed data before pricing a module. A dead ESC light and one bad wheel-speed signal can look nearly the same from the driver’s seat.

3. The flash is simple only when the truck is ready

The dealer fix is software, not a brake pump

For 24V-653 / 75B, Stellantis calls for an ABS control module software update. The dealer uses wiTECH 2.0, not a parts cannon. That is the first line between a recall repair and a normal ABS diagnosis.

The hydraulic control unit does not get replaced just because the VIN falls under 75B. Same for the ABS pump motor. Those parts enter the picture only when codes, pump tests, or module checks prove a hardware fault.

That saves money when the truck only needs the campaign flash. It also stops bad guessing. A used ABS module can add C2202 VIN mismatch before it fixes a single warning light.

Battery support can make or brick the module

Flashing an ABS control module needs clean voltage. The 75B repair instructions call for proper battery support during the wiTECH 2.0 update. The service record points to a 13.0 to 13.5-volt charging range during programming.

Low voltage can corrupt the flash. Once that happens, the ABS module may stop talking, fail configuration checks, or need replacement. A weak battery turns a free recall visit into a longer shop stay.

This is why a charger matters more than the waiting-room coffee. The module has to write software cleanly while the truck stays awake. Drop voltage mid-flash and the repair can leave on a tow hook.

Post-flash warnings need a real second pass

Some owners report brake, park brake, ABS, or ESC warnings after the 75B update. Those warnings can come from stored faults, weak battery support, incomplete setup, or a module that already had damage. A successful flash still needs the truck to finish its ABS setup routine.

The ABS module has to know the truck it lives in. Tire size, axle setup, air suspension, trailer brake hardware, and stability-control calibration can all matter. If the setup routine fails, the truck may keep warnings even after fresh software.

C2202 points toward a VIN mismatch or an uninitialized module. That often shows up after a used controller swap or a bad programming path. Re-scan the ABS module, run initialization, and verify live wheel-speed data before condemning the HCU.

4. The 2025 hub fault can mimic a bad ABS module

97B starts at the front wheel, not the controller

The 2025 Ram 1500 has its own ESC recall path. NHTSA 24V-794, Stellantis recall 97B, covers certain 2025 trucks with damaged front wheel bearing encoder rings. NHTSA lists 33,777 potentially involved pickups.

This fault starts inside the front hub bearing assembly. The damaged encoder ring can corrupt the wheel-speed signal. Once the ABS module sees bad speed data, ESC may shut down to avoid applying brake force from a false reading.

The suspect production window ran from October 13, 2023, to August 11, 2024. That date range matters on 2025 trucks. The repair bay needs a hub inspection before anyone blames the ABS module.

The encoder ring is the signal the sensor reads

The encoder ring is built into the bearing hub. It gives the wheel-speed sensor a magnetic pattern to read as the wheel turns. The ABS module uses that signal to track wheel speed at each corner.

A damaged ring can make one wheel look slower, faster, or dead. The module cannot trust that input during a skid calculation. So ESC may switch off rather than command the wrong brake at the wrong tire.

That leaves the dash looking familiar. ABS, ESC, traction control, or driver-assist warnings can stack up like a module failure. One bad front hub can light the same cluster as a software fault.

The 2025 repair starts with inspection

The 97B repair path starts with checking the front wheel bearing. Dealers inspect the hub assembly and replace it if the encoder ring falls into the failure group. This is a physical part check, not a module flash.

The affected hub part trail includes bearing assemblies such as 68549227AA, 68422140AA, and 68569095AA. The wheel-speed sensor, listed in the record as 68292050AG, reads the magnetic pulses from that hub. Damage at the ring can make a good sensor report bad data.

A 2019 or 2021–2024 truck under 75B starts with software. A 2025 truck under 97B starts at the front hub. Miss that line and you can replace a controller while the bad encoder ring keeps feeding junk speed data.

5. ABS module swaps get ugly when the truck is built wrong on paper

DT and DS trucks do not share the same repair lane

The fifth-generation Ram 1500 is the DT truck. The older Ram 1500 Classic is the DS truck. Mix those two platforms in an ABS repair and the part search goes sideways fast.

The 75B recall points at newer DT-platform Ram 1500 pickups. DS trucks can use different ABS modules, wheel hardware, brake logic, and programming paths. A Classic with ABS lights needs its own scan and parts lookup.

The wheel count is a quick clue. DT trucks use 6-lug wheels. DS trucks use 5-lug wheels. If the module listing ignores that difference, close the tab.

Similar connectors do not mean the module fits

Ram ABS modules follow the truck’s build sheet. Air suspension, adaptive cruise, axle setup, tire size, trailer brake hardware, and stability-control calibration can all change the controller match. A plug that clicks in does not prove the software belongs there.

This is where cheap used modules bite. An eBay controller from a similar year can still carry the wrong configuration. The truck may throw C2202 VIN mismatch, refuse initialization, or keep ESC and ABS lights active.

Part numbers matter down to the suffix. Listings around 68436003AD, 68415317AA, 68728134AA, and older DS-number families can look close from a screen. The truck needs the right module, the right VIN write, and the right ABS initialization.

Module-only repair saves labor only when the HCU is healthy

Some shops replace only the electronic ABS module. They leave the hydraulic control unit bolted to the brake lines. That can avoid a full hydraulic bleed and save time under the hood.

The physical assembly sits on the driver’s side of the engine bay, often below the main fuse box. Access may require the front wheel and plastic fender liner to come off. The electronic module bolts to the HCU with small Torx screws, commonly T20 or T25.

A module-only swap will not fix a bad pump motor, stuck valve, or failed HCU. If the scan shows pump motor faults, power and ground failures, or valve-control trouble, the brake hydraulic side stays in play. Replace only the brain when the hydraulic body has already passed the test.

6. Warning lights do not name the failed part

Start with codes, not guesses

An ABS light does not prove the ABS module died. The fault can start in software, a front hub encoder ring, a wheel-speed sensor, wiring, low voltage, a weak flash, or the hydraulic control unit. The dash only tells you the system has dropped out.

That matters because 75B, 97B, and normal ABS failures can look alike from the driver’s seat. ABS, ESC, and traction lights can stack up fast. Adaptive cruise and forward collision warning may also go unavailable.

The first move is a real ABS scan. Pull module codes, check recall status, and watch live wheel-speed data while the truck rolls. Buying an ABS controller before that scan can turn one warning light into C2202.

Match the symptom to the fault lane

Base brakes can still work while the safety net is gone

The 75B recall language does not mean the brake pedal disappears. The hydraulic brakes can still clamp the rotors. The missing piece is the electronic layer that modulates brake force during a skid or panic maneuver.

That distinction can mislead owners. A Ram 1500 may stop normally in a dry parking lot with ABS and ESC lights on. Rain, snow, gravel, towing, or a fast lane change can expose the missing stability control.

Do not clear codes and send the truck out blind. Confirm ESC operation, verify live wheel-speed signals, and make sure the ABS module finishes initialization. If the warning lights return after the key cycle, the truck still has an active brake-control fault.

7. Towing adds a second brake risk on 2025–2026 trucks

26V059 lives in the trailer tow module

NHTSA 26V059 covers certain 2025–2026 Ram 1500 trucks with faulty trailer tow modules. The Part 573 report lists 312,365 potentially involved Ram 1500 pickups. This recall sits beside the ABS story because the warning-light risk overlaps towing safety.

The trailer tow module handles the truck’s link to trailer lights and trailer braking. When it fails, trailer turn signals, brake lights, or trailer brakes may quit. That fault can show up with the truck feeling normal when nothing is hitched.

This repair path is hardware. The trailer tow module gets replaced. A 75B ABS flash will not restore trailer brake output from a failed tow module.

The failure point changes the crash risk

With 75B, the truck may lose ESC. That cuts the safety layer that helps correct a skid. The brakes may still clamp, but the truck has less help when grip breaks loose.

With 26V059, the trailer can lose brake lights, turn signals, or braking. That puts the danger behind the truck. A loaded trailer without working brakes can shove the Ram through a stop.

The records also tie the wider trailer tow module defect to 456,000 recalled Ram and Jeep vehicles. Ram 1500 production dates in the recall group run from September 27, 2023, to November 8, 2025. Hitch weight will not matter if the trailer brake signal never reaches the trailer.

Tow rigs need both VIN paths checked

A 2025 or 2026 Ram 1500 that tows needs more than an ABS recall check. Run the VIN for 97B if it is a 2025 truck. Run it for 26V059 if it falls into the trailer tow module group.

Then test the trailer connection under load. Check turn signals, brake lights, and brake-controller output before a trip. A truck can feel fine empty and still lose trailer braking once the 7-way plug is carrying the job.

8. Open recalls change the truck’s value

Start with the VIN, not the warning light

The clean first move is a VIN lookup. Check NHTSA or Mopar for 75B, 97B, and 26V059 before pricing an ABS module. The recall number tells you whether the truck needs software, a front hub inspection, or a trailer tow module.

A dash full of ABS and ESC lights still needs a scan. The VIN lookup only tells you campaign status. Codes tell you whether the fault lives in software, wheel-speed data, low voltage, initialization, or the HCU.

If 75B is open, let the dealer flash the ABS module first. If the campaign is closed and the lights remain, pull ABS codes before spending parts money. Guess wrong and the truck can leave with the same warning stack.

Used buyers should treat recall proof like service history

A 2019 or 2021–2024 Ram 1500 needs proof of 75B completion. A seller saying “the dealer handled it” is not enough. Ask for the campaign record or dealer repair order.

A 2025 truck needs a check for 97B front wheel bearing encoder ring work. The repair trail should show inspection, and hub replacement if the truck failed the recall check. A clean dash during a short test drive does not prove the encoder ring is healthy.

A 2025–2026 tow rig needs the 26V059 trailer tow module checked before it pulls weight. Turn signals and brake lights are easy to test. Trailer brake output needs to work through the 7-way plug, not just show a happy message on the dash.

The repair line is VIN, scan, then parts

If the recall is open, the dealer campaign comes first. If the recall is closed and the lights return, scan the ABS module and save the freeze-frame data. Then verify wheel-speed signals, voltage history, ABS initialization, and part-number match.

Do not buy a controller because the ABS light came on. A 2025 truck may need a hub. A 2019 or 2021–2024 truck may need a flash. A swapped controller may only need VIN programming and ABS initialization.

The expensive mistake is replacing the module before proving the fault lane. Check the VIN, scan the ABS module, graph wheel-speed data, and match the part number before the brake lines come apart.

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Rami Hasan is the founder of CherishYourCar.com, where he combines his web publishing experience with a passion for the automotive world. He’s committed to creating clear, practical guides that help drivers take better care of their vehicles and get more out of every mile.