Hyundai, Kia, and Genesis vehicles across multiple engines experienced brake assist and vacuum pump/booster issues. Symptoms included reduced brake assist, long pedal travel, and degraded vacuum performance. Remedies included recall campaigns, booster/pump replacements, and software updates. Class actions referenced these failures in certain clusters.
| Year(s) | Make | Model | Should Purchase? | Notes | |
|---|---|---|---|---|---|
| 2011 2012 2013 2014 | Hyundai | Sonata | Caution |
Issue: degraded vacuum pump → reduced brake assist, long pedal Remedy: recall campaigns, pump replacement Legal context: referenced in settlement filings and TSBs |
|
| 2011 2012 2013 2014 | Kia | Optima | Caution |
Issue: vacuum pump failure → reduced brake assist Remedy: recall campaigns, pump replacement Legal context: class action references noted |
|
| 2012 2013 2014 2015 | Hyundai | Santa Fe | Caution |
Issue: booster performance degraded → long pedal, reduced assist Remedy: booster replacement under recall/TSB Legal context: referenced in settlement filings |
|
| 2014 2015 2016 | Kia | Sorento | Caution |
Issue: vacuum booster degradation → reduced brake assist Remedy: recall campaigns, booster replacement Legal context: class action references noted |
|
| 2017 2018 2019 | Genesis | G80 | Awareness |
Issue: vacuum pump wear → reduced brake assist Remedy: recall advisories, pump replacement Legal context: referenced in settlement filings |