U0151: How to Diagnose & Fix — Lost Communication With Restraints Control Module
2 vehicles · 2 makes · $150-$1,400 repair
How to diagnose and fix U0151: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Jeep Grand Cherokee · 2022–2024
Owners of WL-generation Grand Cherokee models have reported persistent airbag warning lights and restraint system messages tied to seat wiring/connectors, especially around second-row or seat-mounted side airbag circuits. FCA also issued safety actions/TSB guidance on certain restraint-related faults in this generation. The practical problem is that the SRS may be disabled or operate improperly until the connector, harness, or module issue is corrected.
Common Symptoms
- airbag warning light on
- service airbag system message
- restraint system warning chime
- intermittent warning after moving seats
- warning returns after clearing codes
How to Fix
Scan the Occupant Restraint Controller for stored codes, then inspect under-seat connectors, terminal tension, harness routing, and any signs of pin drag or intermittent contact. Repairs typically involve connector replacement, terminal repair, harness retention updates, or module/software updates depending on the exact fault. Clearing the light without fixing the root cause usually results in repeat warnings.
Owner tips & cautions
- TipOwners often suggest documenting exactly when the warning appears, especially after seat movement or folding the second row, to help isolate an intermittent connector issue.
- TipAvoid probing SRS connectors with generic test lights; use proper scan diagnostics and battery disconnect procedures before any seat harness inspection.
Sources for this issue (1)
Chevrolet Bolt EV · 2017–2023
The 10.2-inch infotainment touchscreen in the Bolt EV develops ghost touch inputs, screen flickering, unresponsive areas, and random screen blackouts. The screen registers phantom touches that change radio stations, adjust climate controls, or activate features without driver input. The issue is caused by a failing digitizer layer in the touchscreen or a loose ribbon cable connection behind the display. Hot weather and direct sunlight on the screen exacerbate the ghosting behavior. The issue affects both the original infotainment system and the updated system in 2020+ models.
Common Symptoms
- Screen registers touches that did not happen
- Radio station changes by itself
- Climate controls adjust without input
- Screen flickers or goes black intermittently
- Touchscreen unresponsive in certain areas
- Ghost touches worse in hot weather or direct sun
How to Fix
Perform a system reset by holding the Home and Fast Forward buttons simultaneously for 10 seconds. If ghosting persists, the display panel needs replacement ($500-$1,000 for parts, $200-$400 labor). A loose ribbon cable behind the display can sometimes be reseated without replacing the entire screen — ask the technician to check this first ($100-$200 diagnostic). Some owners have resolved minor ghosting by installing a tempered glass screen protector, which insulates the digitizer from temperature-induced phantom touches.
Sources for this issue (1)
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U0151 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does U0151 mean?
U0151 stands for "Lost Communication With Restraints Control Module." This network (U) code means other modules have lost communication with the restraints control module (the airbag/SRS computer) over the data bus. Because the restraints control module manages airbag and seatbelt pretensioner deployment, a communication loss can mean these safety systems are unavailable and the airbag warning light is typically on. The cause is usually power, ground, wiring, or connector related, though the module itself can fail. This is safety-critical and should be diagnosed promptly.
What are the most common causes of U0151?
The most common causes of U0151 are: Loss of power or ground to the restraints control module, Blown fuse feeding the module, Wiring or connector fault on the bus circuit, Corrosion at module connectors (often under-seat moisture), Faulty restraints control module, Bus communication wiring damage. The specific cause varies by vehicle.
How much does it cost to fix U0151?
Repair costs for U0151 range from $150 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by U0151?
Au7o has documented U0151 across 2 vehicle models from 2 manufacturers: Chevrolet, Jeep.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.