NHTSA Complaint #11626774 — 2020 JEEP COMPASS

The primary issues involve the Powertrain Control Module (PCM), wiring harness, and auxiliary battery system. These interconnected problems compromise vehicle reliability, pose safety risks, and create undue financial burdens on owners. Overview of Defects The vehicle failed to start on [XXX], with illuminated dashboard warnings and automatic parking brake engagement. Initial diagnostics led to replacing the battery and starter, but the issue persisted. Further investigation revealed PCM failure, and even after its replacement, the vehicle remained inoperable. Subsequent diagnostics identified a defective wiring harness. Southern Jeep in Norfolk, Virginia, estimated replacement costs at $4,500. This critical component facilitates communication between the PCM and other systems, and its failure jeopardizes vehicle safety and reliability. Incident History 2021: The vehicle stopped unexpectedly in traffic on Portsmouth Boulevard, Virginia. Initially attributed to a battery failure, evidence now suggests PCM or wiring harness involvement. [XXX]: The vehicle failed to start, initiating weeks of diagnostic efforts and costly repairs. November 2024: The wiring harness was identified as the root cause following PCM replacement. Safety Risks Unexpected Shutdowns: These pose a high risk of accidents, endangering vehicle occupants and other drivers. Start/Stop System Failures: Malfunctions increase the likelihood of breakdowns in hazardous locations. Broader Context Complaints from other Jeep Compass owners and Jeep's issuance of multiple Technical Service Bulletins (TSBs) confirm systemic defects in the start/stop system, PCM, and wiring harness. Despite evidence of these recurring issues, Jeep has not initiated a recall, leaving owners to shoulder repair costs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)