Openai/691b6d11-bac8-8003-a14e-68c9fc64a916

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User: All of these errors just popped up on my 2024 Ford Bronco.

All of these errors just popped up on my 2024 Ford Bronco. What’s the likely cause in remedy? I’d like to avoid taking this in for service if possible.

Assistant: Based on the cluster of warnings you're seeing all at once—ABS Fault, Hill Start Assist Fault, AdvanceTrac/Traction Con…

Based on the cluster of warnings you're seeing all at once—ABS Fault, Hill Start Assist Fault, AdvanceTrac/Traction Control Fault, and Pre-Collision Assist Not Available—this pattern is very common on late-model Fords when one of a few shared components in the stability/ABS system goes bad.

Here’s the breakdown:

✅ Most Likely Causes (Ranked by Probability)

1. ABS Wheel Speed Sensor Failure (MOST COMMON)

On Broncos and F-150s, a single wheel speed sensor going bad can disable:

• ABS
• AdvanceTrac / traction control
• Hill Start Assist
• Pre-Collision Assist
• Collision warning Because all of those systems depend on accurate wheel-motion data.

Why it fits your symptoms: All the warnings share the ABS module as a data source.

Typical trigger:

• Snow, mud, or ice buildup
• Off-road debris damaging a sensor cable
• The sensor simply failing
• A wheel hub bearing starting to go bad (less common at 24k km)

Cost to fix (if needed): $20–$70 for the sensor if DIY $120–$250 at a shop Takes 10–20 minutes per wheel.

2. Low Battery Voltage / Weak Battery (VERY COMMON ON FORDS)

When the battery voltage dips—especially in cold weather—you can get random safety-system failures.

Why it fits:

• You mentioned it’s 4° C, which is cold enough to expose a weak battery.
• Ford modules behave erratically with voltage dips.

If the messages cleared after driving, this is even more likely.

3. Bad ABS Tone Ring / Debris on Tone Ring

Each wheel has a “tone ring” used by the ABS sensor.

A cracked ring or packed-in mud/snow can cause:

• ABS faults
• Traction Control faults
• Hill Start Assist faults

This often happens after:

• Off-roading
• Heavy mud
• Driving through slush

4. Loose or Damaged Wiring Harness to a Wheel

Broncos are known to occasionally chafe or pull a wheel-speed-sensor wire, especially if:

• You were off-roading
• Snow/ice has accumulated
• A rock struck the suspension area

❗ What’s NOT likely the cause:

• A major brake failure (your brakes still work, just no ABS)
• A faulty pre-collision radar (that would cause only collision warnings, not ABS faults)

🔧 Easy DIY Checks Before Going to the Dealer

Step 1 — Inspect all 4 wheel speed sensors

Takes 3–5 minutes per wheel.

Look for:

• Broken wire
• Loose connector
• Mud or ice packed around the sensor
• Metal debris stuck to magnetic sensor tip (common)

The sensors sit near the wheel hub/rotor.

Step 2 — Clean out any ice/snow/mud

Use warm water if necessary. Broncos in cold climates get this frequently.

Step 3 — Check your battery

If your Bronco is still on the factory 2024 battery, they are known to drop voltage sooner than expected.

Have these numbers checked:

• 12.6V+ engine off = healthy
• 12.2–12.4V = weak
• <12.0V = failing battery

Most auto stores test for free.

Step 4 — Reboot the modules (simple)

Disconnect the negative battery terminal:

1. Turn vehicle off
2. Remove negative terminal for 10 minutes
3. Reconnect

This forces a recalibration of ABS/AdvanceTrac systems.

Step 5 — See if the warnings return after driving a few minutes

If they disappear, it was likely:

• Low voltage
• Temporary sensor obstruction
• Ice buildup

If they return immediately → sensor or wiring failure is almost certain.

🔧 If you want the single most likely failed part:

👉 Left Front Wheel Speed Sensor This is statistically the most common failure on Broncos and modern Fords when all these messages appear at once.

📌 When You Should Go to Service

If:

• The ABS light stays on permanently
• Traction control is disabled every start
• Messages return after cleaning sensors
• You notice unusual wheel noise

Then you almost certainly need:

• A new wheel speed sensor, or
• A wiring repair

Both are quick repairs.

👍 If you'd like, I can analyze the photos for which wheel sensor or module is most likely failing and help you pinpoint where to check first.

Just let me know what happened before the warnings (snow, off-road, wash, cold start, etc.).