C2417 on 2017-2022 Hyundai Ioniq — Hill Start Assist System Fault
1 vehicles · 1 makes · $400-$1,400 repair
Most Reported On
C2417 is an OBD-II diagnostic trouble code meaning “Hill Start Assist System Fault.” C2417 is a chassis code that the provided definition lists as a Hill Start Assist (hill-hold) system fault, a feature that briefly holds the brakes when you start off on an incline so the car doesn't roll back. The control module sets this code when it detects a problem within the hill-start-assist function or a related input it relies on, such as brake-pressure, incline, or wheel-speed data. You will typically see a warning message and lose the hill-hold feature, though normal braking still works. Note this is a manufacturer-specific code whose exact meaning and triggering component can vary by make, so the stored definition should be confirmed against the vehicle's service data. This code is most commonly reported on 2017-2022 Hyundai Ioniq, with repair costs ranging from $400 to $1,400.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C2417, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does C2417 mean?
C2417 stands for "Hill Start Assist System Fault." C2417 is a chassis code that the provided definition lists as a Hill Start Assist (hill-hold) system fault, a feature that briefly holds the brakes when you start off on an incline so the car doesn't roll back. The control module sets this code when it detects a problem within the hill-start-assist function or a related input it relies on, such as brake-pressure, incline, or wheel-speed data. You will typically see a warning message and lose the hill-hold feature, though normal braking still works. Note this is a manufacturer-specific code whose exact meaning and triggering component can vary by make, so the stored definition should be confirmed against the vehicle's service data.
What are the most common causes of C2417?
The most common causes of C2417 are: Fault or stored codes in the ABS/stability control module (shares the function), Faulty brake pressure or master cylinder pressure sensor, Inclination/yaw or accelerometer sensor fault, Wheel speed sensor signal problem, Brake pedal or brake light switch fault, Damaged wiring or connectors in the brake control system, Low brake fluid or hydraulic/electronic actuator issue. The specific cause varies by vehicle.
How much does it cost to fix C2417?
Repair costs for C2417 range from $400 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by C2417?
Au7o has documented C2417 across 1 vehicle models from 1 manufacturers: Hyundai.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.