OBD-II Code U0125: Lost Communication With Multi-axis Acceleration Sensor Module

What Does U0125 Mean?

Your car's main computer lost its connection to the Multi-axis Acceleration Sensor module. Also called a Yaw Rate Sensor or Inertial Measurement Unit (IMU), this component measures the car's side-to-side (yaw), forward-and-backward (acceleration), and turning movements. Stability control and ABS require this data to anticipate and prevent skids, making it a critical active safety component.

Technical definition: The SAE/OBD-II definition is "Lost Communication With Multi-axis Acceleration Sensor Module A". The sensor stopped sending data over the vehicle's Controller Area Network (CAN) bus for a specific period, typically 250-500 milliseconds.

Can I Drive With U0125?

Yes, But With Caution. You can drive, but at a significant safety risk. Your primary active safety systems—Anti-lock Brakes (ABS) and Electronic Stability Control (ESC)—are disabled. In an emergency stop, your wheels will lock up and skid. In a sudden swerve, the vehicle cannot assist you in preventing a spin-out. On some vehicles, All-Wheel Drive (AWD) and electric power steering also disable, making steering heavy. The financial risk is the dramatically increased chance of an accident.

Common Causes

• Damaged Wiring or Corroded Connectors (Very Common) — Wires in the CAN bus network fray, pinch, or short. Connectors under the vehicle or center console corrode from moisture and road salt, breaking the connection to the sensor.
• Control Module Software/Firmware Glitch (Common) — On General Motors and Dodge/Chrysler vehicles, a known software bug in the Electronic Brake Control Module (EBCM) causes it to drop communication with the sensor. This requires a dealer software update.
• Liquid Intrusion / Spills (Common) — Spilled drinks seep into the unsealed sensor or its connector under the center console, causing corrosion and short circuits. This is highly prevalent on Dodge Chargers, Challengers, and Chevy Cruzes.
• Faulty Multi-axis Acceleration Sensor Module (Common) — The sensor fails internally due to age, cracked solder joints, moisture intrusion, or physical damage from a hard impact.
• Poor Power or Ground Connection to the Sensor (Less Common) — A blown fuse, a corroded chassis ground wire, or a failing power distribution module interrupts power, causing the module to go offline.
• CAN Bus Network Fault (Rare) — A system-wide fault occurs due to a failed terminating resistor, a short in the main bus wires, or another module flooding the network with erroneous data.
• Low Vehicle Battery Voltage (Rare) — Modern communication networks are sensitive to voltage. A weak battery causes sporadic communication errors between modules, occasionally manifesting as U0125.

Symptoms

• Stability Control (ESC/VDC/StabiliTrak) Warning Light On — The light remains solid or flashes, indicating the system is disabled.
• ABS Warning Light On — The ABS system relies on the sensor's data and disables itself, illuminating the warning light.
• "Service ESC" or "Service Stabilitrak" Message — A text message appears on the driver information center (DIC) display.
• Traction Control (TC) Warning Light On — The traction control system deactivates alongside the stability system.
• AWD/4WD System Disabled or Warning Light — All-Wheel Drive systems use yaw rate data to distribute torque. When lost, the AWD control module disables the system.
• Loss of Power Steering Assist — Electric power steering disables as a precaution, making steering feel unexpectedly heavy.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this code.

Common Fixes & Costs

• Reprogramming the Control Module (EBCM/PCM) — Parts: $0, Labor: $120-$200, ~1.0 hr book time (Professional)
• Repairing Damaged Wiring or Cleaning Connectors — Parts: $10-$50, Labor: $150-$400, ~2.0 hr book time (Intermediate)
• Replacing the Multi-axis Acceleration / Yaw Rate Sensor — Parts: $150-$400, Labor: $150-$300, ~1.5 hr book time (DIY)
  GMC / Chevrolet (Equinox, Terrain): OEM {'brand': 'GM / AC Delco', 'part_number': '13514501', 'price_range': '$150-$220'} (Alt: {"brand": "Dorman", "price_range": "$100-$180"})
  Dodge / Chrysler (Charger, Challenger): OEM {'brand': 'Mopar', 'part_number': '56029549AD', 'price_range': '$350-$550'} (Alt: {"brand": "Bosch", "price_range": "$200-$350"})
  Subaru (Outback, Legacy): OEM {'brand': 'Subaru', 'part_number': '27542AG000', 'price_range': '$300-$500'} (Alt: {"brand": "Bosch", "part_number": "0265005254", "price_range": "$250-$400"})
• Replacing the ABS/EBCM Module — Parts: $500-$1200, Labor: $150-$400, ~2.0 hr book time (Professional)
• CAN Bus Harness/Module Repair — Parts: $50-$150, Labor: $400-$1500, ~5.0 hr book time (Professional)

Used vs. New Parts: Buying Guide

When a used part is worth it: When the vehicle is older (10+ years), a new OEM sensor is prohibitively expensive, and the budget is tight. A used sensor from a reputable salvage yard is a cost-effective option.

Donor-vehicle mileage cap: roughly under 100000 miles for the part to have meaningful remaining life.

Donor quality checklist:

• Verify the donor vehicle was not involved in a significant collision, as impacts damage sensitive electronics.
• Inspect the part for signs of corrosion, water damage, or physical cracks.
• Match the part number exactly. Superseded part numbers indicate internal improvements and are preferable if buying new.

Decision logic:

• If Vehicle has a known software TSB for U0125 → Do not buy any part; spend the money on a dealer software update first.
• If The fault is confirmed to be the sensor and the vehicle is less than 8 years old → Buy a new OEM or high-quality aftermarket part for reliability and warranty.
• If Budget is the primary concern on an older vehicle → A used part is a viable option, but accept the risk of premature failure.

Warranty tradeoff: Used parts offer a 30-90 day warranty. New aftermarket parts come with a 1-3 year warranty. New OEM parts carry a 12-month manufacturer's warranty.

Worst-case if a used part fails: $300-$600 if a used part fails after installation, representing repeat labor and a new sensor.

What Happens If You Wait — Timeline

1. Immediately: Code U0125 sets. ABS, ESC/StabiliTrak, and AWD warning lights illuminate. Primary active safety systems disable. (MPG impact: 0%% · Added cost: $0 (Safety Risk))
2. Ongoing: The vehicle drives without ABS and ESC. The risk of a loss-of-control or rollover crash in an emergency maneuver increases significantly. (MPG impact: 0%% · Added cost: $0 (Safety Risk))
3. Next State Inspection: The vehicle fails state safety inspections due to illuminated ABS and stability control warning lights. (MPG impact: 0%% · Added cost: $150-$1200 (Cost of required repair to pass inspection))
4. During an emergency maneuver: A preventable accident occurs. Without ESC, a sudden swerve becomes a spin-out. Without ABS, a panic stop becomes an uncontrolled skid. (MPG impact: 0%% · Added cost: $5,000 - $50,000+ (Average cost of an at-fault accident, liability, and increased insurance premiums))

Cost of Not Fixing It

• Immediately: Complete loss of Electronic Stability Control (ESC) and Anti-lock Brakes (ABS). Dramatically increased risk of losing control during an emergency maneuver. (Added cost: N/A (Safety Risk))
• Ongoing: Failure of state safety inspection due to ABS/ESC warning lights. Inability to avoid an accident that a functioning ESC system prevents. (Added cost: $2,500 - $25,000+ (Cost of insurance deductible, vehicle repair, or liability in an at-fault accident))
• Long-term: There is no direct progressive mechanical damage to other components. The cost is entirely related to the continuous safety risk. (Added cost: N/A (Safety Risk))

Diagnosis Steps

1. Read All Trouble Codes from All Modules
   Use a professional OBD-II scanner to read codes from all modules (ABS, EBCM, BCM). Note all active and stored codes. Codes like U0073 indicate a wider network problem that must be addressed first.
   Tools: Advanced OBD-II Scanner (Beginner)
2. Check for Technical Service Bulletins (TSBs)
   Search for TSBs related to U0125 for your specific vehicle. Manufacturers release bulletins for known software glitches (GM) or specific wiring problems (Dodge), saving hours of diagnostic time.
   Tools: Internet Access (Beginner)
3. Visually Inspect Wiring, Connectors, and Grounds
   Locate the Multi-axis Acceleration Sensor (under the center console, seat, or firewall). Inspect the wiring harness for pinched wires or rodent damage. Check connector plugs for green/white corrosion or backed-out pins. Ensure the chassis ground is clean and tight.
   Tools: Flashlight, Trim Removal Tools (Intermediate)
4. Check Sensor Power and Ground Circuits
   Using a multimeter and wiring diagram, check for 4.9V - 5.1V at the sensor's power wire (ignition on). Check the ground wire for resistance to the chassis; it must be less than 5.0 ohms. Lack of power points to a blown fuse or wiring issue.
   Tools: Multimeter, Vehicle-Specific Wiring Diagram (Intermediate)
5. Test CAN Bus Network Integrity
   Disconnect the battery. At the OBD-II port, measure resistance between Pin 6 (CAN High) and Pin 14 (CAN Low). It should read ~60 ohms. A reading of ~120 ohms indicates an open circuit; ~0 ohms indicates a short.
   Tools: Multimeter (Advanced)
6. Perform a 'Wiggle Test'
   With the ignition on and a scan tool monitoring the sensor's communication status, wiggle the wiring harness at the sensor connector, intermediate connectors, and the firewall. If communication drops, you found the break or short.
   Tools: Advanced OBD-II Scanner (Intermediate)
7. Check Live Sensor Data
   Access the live data stream for the Yaw Rate Sensor. Parked on level ground, the 'Yaw Rate' PID should read between -0.5 and +0.5 degrees/second. An erratic or stuck value indicates a sensor or communication fault.
   Tools: Advanced OBD-II Scanner (Advanced)
8. Verify CAN Bus Signal with an Oscilloscope
   Probe the CAN High and CAN Low wires. You should see a mirrored square wave pattern. When idle, both sit at ~2.5V. During communication, CAN High switches to ~3.5V and CAN Low to ~1.5V. A distorted pattern confirms a communication problem.
   Tools: Automotive Oscilloscope (Professional)
9. Substitute the Sensor and Perform Calibration
   If all wiring and network tests pass, replace the sensor module. You must perform a 'Yaw Rate Sensor Learn' procedure using a professional scan tool. Skipping this step causes the code to return immediately.
   Tools: Socket Set, Professional Scan Tool (Professional)

When This Code Triggers (Freeze-Frame Conditions)

• Vehicle Speed: 25-65 mph (The code sets when the vehicle is in motion, as the control module expects continuous data from the sensor during driving.)
• Engine RPM: 1200-2500 RPM (Consistent with steady-state cruising or light acceleration.)
• System Voltage: 13.5-14.5 V (The fault usually occurs when the electrical system operates normally; however, low voltage (below 12V) also triggers network communication codes.)
• Engine State: ON (The engine must be running for the CAN bus network to be fully active.)

Related Codes

• U0073 — 'Control Module Communication Bus A Off' indicates a failure of the entire network. Diagnose the overall health of the CAN bus before focusing on the yaw sensor.
• U0126 — 'Lost Communication With Steering Angle Sensor Module'. Seeing both codes points to a shared wiring harness problem or an issue with the primary EBCM they both report to.
• C0063 — 'Yaw Rate Sensor - Signal'. Seeing this with U0125 strongly suggests the problem is the sensor itself or its direct wiring, rather than a broader network issue.
• U0151 — 'Lost Communication with Restraints Control Module'. On 2018+ GM vehicles, the same EBCM software glitch causes both codes. TSB 19-NA-213 indicates reprogramming the EBCM.

Climate & Environmental Factors

• High Humidity & Heavy Rainfall: Increases water intrusion into connectors and modules, causing corrosion-related failures for sensors located on the undercarriage or cabin floor.
• Cold Climates & Road Salt: Road salt dramatically accelerates the degradation of wiring harnesses and under-vehicle connectors (like the GM X411). The salt slurry penetrates weather seals and kills communication.
• Liquid Spills Inside Cabin: Spilled drinks seep into sensors located under the center console (e.g., Dodge Charger), causing direct short circuits and terminal corrosion.

How to Talk to a Mechanic About This Code

Say this: "I have a U0125 code with the ABS and stability control lights on. Please check for any software update TSBs first. If none apply, perform a thorough inspection of the sensor wiring, connectors, and ground points for corrosion before quoting a sensor replacement."

This directs the shop to the most common and least expensive fixes first (software and wiring), preventing them from immediately quoting a costly and potentially unnecessary sensor replacement.

Avoid saying:

• 'My stability light is on, can you just fix it?'
• 'I think I need a new yaw sensor, how much is it?'
• 'Just do whatever it takes to get the lights off.'

Questions to ask before authorizing the repair:

• Did you check for TSBs? Is there a software update available for my vehicle's EBCM or PCM?
• If you're recommending a sensor replacement, did you test the power, ground, and CAN bus signals at the sensor's connector?
• Did you find any specific corrosion or damage on a connector, like the one under the center console or the X411 connector on GMs?
• Does your quoted price for replacing the sensor include the mandatory 'Yaw Rate Sensor Calibration' procedure?
• Can I see the old part that was replaced?

Where to Take It: Dealer vs Independent vs Chain

• Dealer: Recommended, especially if your vehicle is a GM or Dodge product known for software issues. They are the most reliable source for TSB-related software flashes.
  Best for: Vehicles with known software-related TSBs (e.g., GM and Dodge models)., Vehicles still under warranty., Complex, intermittent network communication problems requiring manufacturer-specific diagnostic tools.
  Downsides: Highest labor rates., Reluctant to perform only a software update without a full diagnostic fee. (Typical cost: +50% vs. baseline)
• Independent Shop: Good fit, IF you vet the shop. Ask if they are comfortable diagnosing CAN bus communication issues and have the tools to perform a 'yaw rate sensor calibration'.
  Best for: Out-of-warranty vehicles where the cause is likely a wiring or connector issue., Shops that specialize in electrical diagnostics., Cost-sensitive repairs on older vehicles.
  Downsides: May lack access to perform manufacturer software updates., Diagnostic skill with complex CAN bus networks varies greatly. (Typical cost: +0% vs. baseline)
• Chain Shop: AVOID for diagnosis. This code requires advanced diagnostic skill typically not found at chain shops. They may lack the tool to perform the required calibration.
  Best for: Simple part replacement *after* the problem has been definitively diagnosed elsewhere.
  Downsides: Technicians are rarely trained for complex network or software diagnostics., High likelihood of misdiagnosis, leading to unnecessary replacement of expensive parts. (Typical cost: -10% vs. baseline)

When to Walk Away From the Repair

If the estimated repair cost for the U0125 code exceeds 40-50% of your car's current private-party value, it's time to pause and evaluate your options.

• Car worth $3500, fix is $1800: Walk away. The repair cost is over 50% of the car's value. Consider selling 'as-is' to a wholesaler or scrapping.
• Car worth $15000, fix is $850: Fix it. This repair is well below the threshold and restores critical safety features, preserving the vehicle's value.
• Car worth $5000, fix is $2000: Borderline. The repair is 40% of the car's value. Get a second opinion to confirm the diagnosis before proceeding.

What Scan Tool You Need for This Code

Minimum: A scanner that reads and clears codes from the ABS/Chassis module. A basic engine-only code reader will not see the U0125 code.

A $20 engine-only scanner is useless for this code. U0125 is stored in the ABS or chassis module. You need a tool that specifically lists ABS/SRS/Chassis system diagnostics.

Budget: BlueDriver Pro (~$99) — Reads and clears ABS/chassis codes like U0125 on most major brands. Displays live data from the yaw rate sensor to aid diagnosis.

Mid-range: Foxwell NT630 Plus / Autel MaxiCOM MK808 (~$150-350) — Adds critical bidirectional control functions. These tools perform the mandatory 'Yaw Rate Sensor Calibration' after a sensor is replaced.

Professional: Autel MaxiSys MS906 / Launch X431 Pro (~$600-1500+) — Provides full OEM-level diagnostics. Performs module programming, advanced coding, and includes built-in wiring diagrams and TSB lookups.

Rent vs buy: Renting is not a good option. Free rental tools at auto parts stores are basic engine code readers. Buying a midrange tool with calibration functions is a wise investment.

How to Clear the Code After You Fix It

1. Reconnect the battery if it was disconnected.
2. Use a compatible OBD-II scan tool to erase all DTCs from all modules.
3. Perform the 'Yaw Rate Sensor Calibration' procedure if the sensor was replaced.
4. Perform a test drive to confirm the fix.

Drive cycle (~20 minutes): Start the engine and idle for 2 minutes. Drive for 10-15 minutes, including several turns, accelerations, and stops to ensure the stability control system actively monitors the sensor. This allows the system to verify stable communication.

Readiness monitors affected: Not directly applicable. U0125 is a chassis code. Clearing it resets emissions readiness monitors, but they are not the primary concern for this fault.

Before emissions retest: drive at least 50 miles to fully set monitors.

Watch out for:

• Clearing the code without performing a repair results in the code returning almost immediately.
• Forgetting to perform the mandatory sensor calibration after replacement causes the code to return.
• Disconnecting the battery is not a proper repair and the code will come back.

Will This Fail Emissions / State Inspection?

Yes — this code typically fails an OBD-II emissions inspection.

• California: An active U-code and illuminated ABS/ESC warning lights cause a failure of the state's safety and OBD inspection.
• New York: An illuminated ABS warning light is an automatic failure of the NYS safety inspection. The OBD-II system scan also detects the communication fault.
• Texas: An illuminated ABS light is NOT a cause for rejection in the Texas safety inspection. However, an active DTC presents an issue in emissions-testing counties.

Most Commonly Affected Vehicles

• GMC / Chevrolet Terrain / Equinox (2018-2020) — Extremely common issue caused by an EBCM software glitch. GM issued TSB 19-NA-213; the fix is a dealer reprogram. Check this first.
• GMC / Chevrolet / Cadillac Terrain / Equinox / SRX (2010-2017) — Highly prone to corrosion in the X411 chassis connector under the driver's side rear wheel. Addressed in TSB PIT5427B. Inspect this connector first.
• Dodge / Chrysler Charger / Challenger / 300 (2016-2023) — Frequently caused by spilled drinks corroding the Dynamics Sensor connector under the center console (TSB #9100263). 2021+ models may require a PCM software update (TSB #18-013-22).
• Buick LaCrosse / Regal (2010-2016) — Susceptible to chassis CAN bus wiring faults. TSB #PIT5076E suggests diagnosing the entire chassis bus network if other communication codes are present.
• Ford F-150 / Transit (2015-2018) — Caused by corroded connectors in the wiring harness, particularly where harnesses connect along the frame rails or under the cab.
• Subaru Outback / Legacy / Impreza (2010-2019) — Disables the Vehicle Dynamics Control (VDC) system. Often caused by an internal failure of the yaw rate sensor under the center console. Calibration is required after replacement.
• Honda Accord / CR-V (2018-2022) — Triggered by an internal failure of the multi-axis acceleration sensor itself, requiring replacement and calibration.
• Toyota / Lexus RAV4 / Camry / ES350 (2019-2023) — The yaw rate sensor is integrated into the main SRS/Airbag ECU. U0125 triggers if this module is loose in its bracket after interior work or an accident.

Manufacturer-Specific Notes

• General Motors (GMC, Chevrolet, Buick, Cadillac): Prone to two specific issues: 1) EBCM software glitches on 2018+ models requiring a dealer reprogram (TSB 19-NA-213). 2) Corrosion in the X411 chassis connector on 2010-2017 models (TSB PIT5427B).
• Dodge / Chrysler / Ram: Known for wiring problems at the sensor under the center console due to spilled drinks. TSBs direct technicians to inspect connector pins for corrosion before replacing parts.
• Toyota / Lexus: The yaw rate sensor is physically integrated into the Airbag/SRS Control Unit. A loose module after an accident repair or interior work triggers the code.
• Subaru: Disables the Vehicle Dynamics Control (VDC) system. The cause is often a direct failure of the standalone sensor under the console. Calibration after replacement is mandatory.

Real Owner Stories

2018 GMC Terrain at 55K miles

The 'Service ESC' light came on intermittently for a week, then stayed on. No other symptoms were noticed during normal driving.

What they tried:

1. An independent shop scanned the U0125 code and recommended replacing the Multi-Axis sensor for $600.
2. Owner declined the repair and researched the code online.
3. Found GM TSB 19-NA-213 describing the exact issue.

Outcome: Took the vehicle to a GM dealership. They confirmed the TSB applied and reprogrammed the Electronic Brake Control Module (EBCM) in one hour. Total cost was $150 for labor. The code resolved.

Lesson: For 2018-2020 GM Equinox and Terrain models, a software update is the definitive fix. Always check for TSBs before replacing expensive hardware.

2016 Dodge Charger at 80K miles

ABS and ESC warning lights appeared a month after a passenger spilled soda in the center console.

What they tried:

1. Owner ignored the lights initially.
2. A shop diagnosed U0125 and quoted $850 to replace the 'Dynamics Sensor'.
3. Remembering the spill, the owner inspected the area.

Outcome: Owner removed the center console and found the sensor's electrical connector sticky with green corrosion. They disconnected the battery, cleaned the connector pins with electrical contact cleaner, and let it dry. Codes cleared and did not return.

Lesson: On vehicles with the sensor under the center console, liquid spills are a direct cause. A thorough cleaning fixes the problem for a few dollars, avoiding unnecessary sensor replacement.

2011 Chevy Equinox at 125K miles

Vehicle driven in a northern state with heavy road salt showed 'Service Stabilitrak' and 'Service AWD' messages. Code U0125 was present.

What they tried:

1. A shop suspected a failed sensor or ABS module, quoting over $1,000.
2. Owner searched forums and found TSB PIT5427B regarding the X411 connector.

Outcome: The owner located the X411 connector under the vehicle near the driver's side rear wheel. It was visibly corroded. They cut out the corroded connector and spliced the wires directly using weatherproof butt connectors and heat shrink tubing, permanently fixing the issue.

Lesson: On 2010-2017 GM vehicles, corrosion in the under-vehicle X411 connector is the primary cause of U0125. Inspect this specific connector before any other diagnostic step.

How to Prevent This Code From Triggering

• Apply Dielectric Grease to At-Risk Connectors (Once, or during related service) — Applying dielectric grease inside exposed connectors (like the GM X411) seals out moisture and prevents the corrosion that causes communication failures.
• Perform Regular Undercarriage Washes (Seasonally, especially after winter) — Removing highly corrosive road salt slurry prevents the rapid degradation of wiring harnesses and exposed underbody connectors.
• Clean Cabin Spills Immediately (As needed) — Liquid seeping into the center console directly shorts and corrodes the yaw rate sensor on many vehicles. Immediate cleaning and drying prevents this.
• Inspect and Clean Main Chassis Ground Points (Every 30,000 miles) — The sensor requires a solid ground to communicate. Clean, tight chassis grounds prevent intermittent communication faults.

Frequently Asked Questions

What is a Multi-axis Acceleration Sensor?

It is a sophisticated electronic module that acts like a vehicle's inner ear. It measures movements in all directions: turning (yaw), accelerating/braking, and side-to-side motion. This data is the primary input for stability control and anti-lock brake systems to prevent skids.

Where is the Multi-axis Acceleration Sensor located?

The location varies by vehicle, but it always mounts near the car's center of gravity. Common locations include under the center console, beneath a front seat, or low on the central firewall. It must bolt down securely on a flat, level surface.

Is it safe to drive with code U0125?

While mechanically operable, the vehicle is unsafe during emergencies because ABS and stability control are offline. You must drive with extreme caution, allow longer braking distances, and avoid sudden maneuvers. The risk of losing control on wet or icy roads is significantly higher.

What are the most common misdiagnosis mistakes for U0125?

The biggest mistake is replacing the expensive sensor before checking for software updates (TSBs) or inspecting the wiring. A $5 connector cleaning often saves a $500 sensor replacement. Finally, failing to perform the mandatory sensor calibration after replacement causes the code to return immediately.

My car drives fine, so what's the risk of ignoring a U0125 code?

The car feels normal under gentle driving, but in a split-second emergency, the systems that prevent a skid or spin are disabled. Ignoring this code means driving without modern crash-avoidance technology. A sudden swerve to avoid debris can easily result in a total loss of control.

Can I fix a U0125 code myself?

A DIY fix is possible if the cause is a visibly corroded connector or a blown fuse. However, proper diagnosis requires a multimeter and advanced scanner. Replacing the sensor requires a special calibration with a bidirectional scan tool, meaning most owners eventually need a professional.

Will the U0125 code go away on its own?

It might disappear temporarily if a loose wire makes intermittent contact, but it will always return. The underlying physical or software problem requires a permanent fix to clear the code permanently.

Key Takeaways

• Code U0125 disables your primary active safety systems (ABS and stability control) due to a communication loss with the vehicle's motion sensor.
• Before buying a $300+ replacement sensor, check for manufacturer Technical Service Bulletins (TSBs); a 1-hour dealer software update fixes this code on many 2018-2020 GM vehicles.
• Inspect the sensor's wiring and connectors first, as spilled drinks in the center console (common in Dodge Chargers) or undercarriage corrosion (common in 2010-2017 GM SUVs) cause a large percentage of these failures.
• If you replace the sensor yourself, you must perform a mandatory 'Yaw Rate Sensor Calibration' using a $150+ bidirectional scan tool, or the U0125 code will immediately return.