Symptoms
- Car doesn't come to a complete stop using regen alone
- One-pedal mode seems to turn off unexpectedly
- Behavior is inconsistent between drives
- Setting appears enabled but doesn't behave as expected
Likely causes
- CommonOne-pedal driving setting or 'creep' mode configurationSome cars have multiple settings that affect how fully the car uses regen to stop, and one may not bring the car to a complete stop by design.
- CommonHigh battery charge reducing available regenNear a full charge, reduced regen strength can prevent one-pedal driving from working as strongly as usual.
- PossibleLow traction conditionsThe car may automatically reduce regen braking on wet, icy, or loose surfaces to maintain control, temporarily altering one-pedal behavior.
- PossibleCold battery limiting regen strengthSimilar to charging, cold temperatures can reduce how much regen braking is available, affecting one-pedal driving strength.
What to do
- Check the car's settings menu for the exact one-pedal or regen mode selected and compare it to the manual's description of what each setting does.
- Note the battery charge level, since a very high charge can reduce available regen strength.
- Consider weather and road conditions, since wet or icy roads can cause the system to automatically reduce regen for safety.
- Allow the car a few minutes of driving in cold weather for the battery to warm and regen strength to normalize.
- Compare behavior across a few different drives and conditions before concluding something is wrong.
- If one-pedal driving is inconsistent in similar conditions, temperature, and charge level, mention this pattern to a dealer.
When to call a pro
If one-pedal driving performs inconsistently under matched conditions and settings, have a dealer check the regenerative braking system.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.