C058F code meaning
Regeneration Torque Performance
What C058F means
C058F covers the case where regenerative braking does not deliver the torque the brake system has planned with. In a blended brake the brake module asks the electric drive for generator torque, usually the smaller of the available capacity and the driver's demand, estimates what actually arrives and adds friction braking for the rest, as a GM/BMW/Daimler/Chrysler patent explains. Ford Otosan describes inferring the regenerative share from vehicle deceleration and switching to friction braking at once when regeneration is unavailable, for example with a full or hot battery. Ford notes that its ABS module may cap regenerative torque and that on plug-in hybrids lost regeneration shortens electric range. No manufacturer documents C058F publicly; expect reduced recuperation.
C058F at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of C058F
- Regenerative braking reduced or disabled, friction brakes do more work
- Uneven deceleration or changed pedal feel during light braking
- Shorter electric range on plug-in hybrids and EVs
- Brake or hybrid system warning message
Common causes of C058F
- PossibleElectric drive or inverter delivering less generator torque than requested
- PossibleTraction battery unable to absorb charge (full, hot or cold)
- PossibleTorque arbitration or estimation software in the brake or hybrid module
- Less likelyMissing or delayed torque messages between brake and drive modules
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Regen brake systemBrake control moduleHybrid control module
What each part of C058F means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 8F | The exact fault in that area. |
What to do next
- Note C058F and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C058F
What does C058F mean?
C058F means "Regeneration Torque Performance". C058F covers the case where regenerative braking does not deliver the torque the brake system has planned with. It is a generic code, so it means the same on every make.
Is it safe to drive with C058F?
Drive gently and only to a workshop. With C058F the car can go into limp mode (reduced power) to protect itself.
Will C058F fail an emissions test?
C058F is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C058F to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will C058F clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.