# 2020 PORSCHE CAYENNE — UNKNOWN OR OTHER
> NHTSA complaint `1735962` · 2021-03-23 · Porsche Cars North America, Inc.
## Severity
- **Deaths:** 0
- **Injured:** 1
- **Fire:** No
- **Crash:** No
- **Police report:** No
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** PORSCHE
- **Model:** CAYENNE
- **Year:** 2020
- **Manufacturer:** Porsche Cars North America, Inc.
- **Component:** UNKNOWN OR OTHER
- **Miles at failure:** 6,337
## Narrative
THE CAR CAME WITH A FACTORY INSTALLED TOW SYSTEM. I RETURNED IT TO THE DEALER THREE TIMES AND IT DOES NOT WORK PROPERLY. I WAS SHOCKED PLUGGING IN A TESTER TO THE 7 WAY CONNECTOR. THE DEALER SERVICE MANAGER ADVISED ME THAT I WAS NOT SHOCKED AND STATES THAT THE LIGHTS STATING THE 7 WAY CONNECTOR IS NORMAL. THIS IS NOT NORMAL.  WHEN I CONNECT  A DIGITAL BREAK CONTROLLER OR 7 PIN CABLE WITH A TRAILER THE CAR DOESN'T NOT COMMUNICATE WITH THE BREAK CONTROLLER.  THE BREAK CONTROLLER EXPERT STATED THAT SINCE NO DIODE WAS SHOWING WHEN I PLUG THE CAR IN THAT THIS INDICATES THE BRAKES ARE NOT WIRED CORRECTLY. THE DEALERSHIP SAYS SINCE ANOTHER CAR WORKS THE SAME AS MINE THEY DON'T THINK IT IS A ISSUE.  CORPORATE PORSCHE IS UNABLE TO ADVISE ON TECHNICAL SERVICE BULLETINS OR INFORMATION ON A WIRING HARNESS TO ENABLE A WIRED BREAK CONTROLLER.  I TOOK THE CAR OVER TO UHAUL AND DID REMOTE CALLS WITH THE BRAKE CONTROLLER MANUFACTURER. ALL STATE THAT IT IS SOMETHING WITH THE MANNER IT IS WIRED WITH A 'OPEN GROUND'. THIS IS UNSAFE AS I HAVE NO WAY SAFELY BRAKE OR UTILIZE A BRAKE CONTROLLER. SINCE OTHER 2020S BEHAVE THE SAME WAY THIS IS A SYSTEMWIDE ISSUE AND THE MANUFACTURER IS NOT TAKING ACTION SO IT SHOULD BE EVALUATED BY ENGINEERING.
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*