There are 1 stored owner reports matching the powertrain & transmission leading-label group for the 2009 Hyundai Azera in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)HAVE HAD OCCURRENCES OF 'CHECK ENGINE' LIGHT COME ON AND THE CODE THAT CAME UP WAS P0504 INDICATING A BRAKE SWITCH MALFUNCTION. AFTER SEVERAL TRIPS WITH THE CAR, THE 'CHECK ENGINE' LIGHT GOES OFF, BUT REOCCURS AT A LATER DATE. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.