2022-2025 Ram 1500 ADAS Camera Module: Failures, Calibration, and Replacement
This guide details common failures, mandatory calibration needs, and how to select a reliable used ADAS module for your Ram 1500.
- Calibration is mandatory after replacement. A new or used module will not work without it, adding $250-$600 to the total cost.
- Windshield replacement is the #1 cause of ADAS failure. Always recalibrate after new glass is installed.
- This module fits the new body style (DT) Ram 1500 only, not the Ram 1500 Classic (DS).
- Before replacing the module, check for simpler issues like a dirty windshield, software updates, or calibration needs due to lift kits or new tires.
Symptoms of a Failing ADAS Camera Module
When the ADAS camera module begins to fail or loses its calibration, you will typically see warning messages on your instrument cluster and notice that certain safety features are no longer available. The truck is designed to disable these systems as a safety precaution rather than operate with incorrect or unreliable data.
- "ACC/FCW Unavailable Service Required" Message: This is one of the most common indicators of a problem with the ADAS module or its calibration.
- Lane Keep Assist (LaneSense) Not Working: The truck may fail to provide steering correction if you drift out of your lane. The LaneSense indicator on the dash may stay white or gray, indicating it cannot detect lane lines, or it may flash yellow without providing steering input.
- Forward Collision Warning Inoperative: The system may fail to provide audible or visual warnings in a potential collision scenario. Some owners report that the system never activates, even in close calls.
- Erratic System Behavior: In some cases, a misaligned camera can cause phantom braking or jerky, delayed steering corrections from the Lane Keep Assist system.
- System Deactivates Intermittently: 🎬 Watch: Why your lane assist light is on and how to fix it The driver assist warning lights may blink on and off, with the systems becoming temporarily unavailable.
Known Issues, Recalls, and Technical Service Bulletins (TSBs)
While no specific recalls target the ADAS module itself for the 2022-2025 Ram 1500, related issues and TSBs are important to note.
- TSB 23-018-21: Released for some 2021 Ram 1500s, this bulletin addresses an issue where the bracket holding the camera module can delaminate or detach from the windshield. This can cause the ADAS systems to become inoperative and display a warning message. The fix involves replacing the entire windshield, as the bracket is part of the windshield assembly. While this TSB is for 2021 models, the underlying issue of bracket adhesion is relevant.
- Windshield Replacement Issues: The most common trigger for ADAS problems is windshield replacement. Even a tiny shift in the camera's position during reinstallation can throw off the system's calibration, causing features to fail. Using non-OEM glass can also cause issues with optical clarity that affect camera performance.
- Software-Related Recalls: A recall (NHTSA 24V-436) was issued for some 2022 Ram 1500s due to radio software that could prevent the rearview camera image from displaying. While this doesn't affect the forward-facing ADAS module, it highlights how software glitches can impact camera-based systems in the vehicle.
Compatibility Warning: This ADAS module fits the 2022-2025 Ram 1500 (DT body style, 6-lug wheels) only. It does NOT fit the Ram 1500 Classic (DS body style), which is an older design sold alongside the newer model. Always verify compatibility before purchase.
Buying a Used ADAS Camera Module: What to Check
Purchasing a used ADAS module can be a cost-effective option, but careful inspection is critical due to the part's sensitivity.
1. Verify the Part Number
Mopar has released several part numbers for this module, which often supersede each other. The provided OEM numbers (04672891AB, 4672931AA, 4672931AB, 4672931AC) are a good starting point. Part number 04672931AC appears to be the latest revision, replacing the others. Always try to match the part number from your original module or confirm the interchangeability with a dealer.
2. Physical Inspection
- Lens and Housing: Inspect the camera lens for any scratches, cracks, or haziness. Check the plastic housing for cracks or signs of damage.
- Electrical Connector: The connector pins should be straight, clean, and free of any corrosion. A damaged connector can cause communication errors.
- Mounting Bracket: Ensure the mounting points are intact. On these trucks, the module's bracket is often part of the windshield assembly, but the module itself unclips from it. Damage can occur during removal if not done carefully.
3. The Importance of Professional Calibration
This is the most critical factor. A used ADAS module, regardless of its condition, will not work correctly until it is calibrated. Calibration is a process that tells the module its exact position on the vehicle so it can accurately interpret the road ahead. This procedure requires specialized equipment, including targets and an OEM-level scan tool (like wiTECH for Stellantis vehicles), and must be performed by a qualified technician at a dealership or specialized ADAS calibration shop. Do not purchase a used module without budgeting for this essential step.
Cost Comparison for ADAS Camera Module Replacement
The total cost includes the part and the mandatory calibration. Labor for the physical installation is typically low, as the module is easily accessible behind the rearview mirror cover.
| Item | Estimated Cost | Notes |
|---|---|---|
| New OEM Module | $700 - $1,025 | Price from Mopar dealer and online parts stores. |
| Used OEM Module | $350 - $800 | Prices vary widely on sites like eBay based on condition and seller. |
| New Aftermarket Module | Not Generally Available | Due to the complexity and software integration, aftermarket versions are rare and not recommended. |
| Shop Labor (Installation) | $50 - $150 | Physical replacement is quick (approx. 0.5-1.0 hours). |
| Shop Labor (Calibration) | $250 - $600 | This is a separate, mandatory procedure. Independent shops are often cheaper ($250-$500) than dealers ($400-$600+). |
Installation and Calibration Overview
- Installation Difficulty: 2/5. The physical swap is relatively simple. It involves removing the plastic cover behind the rearview mirror, disconnecting the electrical connector, and unclipping the module from its bracket.
- DIY Feasibility: The physical installation is possible for a DIYer. However, the mandatory calibration is not a DIY job. The vehicle is not safe to operate with an uncalibrated module, as the safety systems will be disabled or could behave erratically. You must take the vehicle to a professional for calibration after installing the part.
Pro Tip: Before replacing the module, have the system scanned for Diagnostic Trouble Codes (DTCs). Sometimes, issues can be caused by a dirty windshield, poor wiring connections, or software glitches that don't require a full module replacement. Also, if you've recently had a windshield replaced, changed tire sizes, or installed a lift kit, a calibration may be all that is needed to resolve your issue.
Frequently Asked Questions (FAQ)
Can I just replace the module and drive without calibrating it?
No. An uncalibrated module will cause the ADAS features like Forward Collision Warning and Lane Keep Assist to remain disabled. The truck's computer needs to know the camera's precise orientation to function safely. Driving without calibration defeats the purpose of the repair and leaves critical safety systems offline.
Why did my ADAS features stop working after a windshield replacement?
This is the most common cause of ADAS failure. The camera module is mounted directly to the windshield. When the glass is replaced, the camera's position changes by tiny amounts—enough to make its readings inaccurate. The system disables itself as a safety measure. A professional ADAS calibration is a required step after every windshield replacement on these trucks.
Can a lift kit or different tires affect the ADAS camera?
Yes. Changing the truck's ride height or tire diameter alters the camera's angle and view of the road. This can cause the system to misjudge distances and lane markings. After any suspension modifications or significant changes in tire size, a full ADAS calibration is required to restore the system's accuracy.
The dealer says I need a new windshield, not just a camera. Why?
In some cases, the bracket that holds the camera module to the glass can fail or delaminate. This bracket is often bonded to the windshield from the factory and is not sold as a separate part. If the bracket is the point of failure, the entire windshield must be replaced to ensure the new camera has a stable, correctly positioned mounting point.
Helpful Videos
Technical Specifications
OEM Part Numbers: 04672891AB 4672891AB 4672931AA 4672931AB 4672931AC
Combined forward-facing camera and radar sensor unit. Mounts to the interior of the front windshield.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Ram 1500:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Symptoms of a Failing ADAS Camera Module
- Known Issues, Recalls, and Technical Service Bulletins (TSBs)
- Buying a Used ADAS Camera Module: What to Check
- 1. Verify the Part Number
- 2. Physical Inspection
- 3. The Importance of Professional Calibration
- Cost Comparison for ADAS Camera Module Replacement
- Installation and Calibration Overview
- Frequently Asked Questions (FAQ)
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