2026 Jeep Compass MIL P0032-00 TSB

Important Warnings for Owners

Owners should be aware of specific advisories regarding this service bulletin:

• This bulletin is not applicable to vehicles built for the US market; it specifically applies to the South America market.
• This Rapid Service Update (RSU) only applies to vehicles on the RSU VIN list. Vehicle owners or technicians must verify VIN applicability using VIP or DealerCONNECT/Service Library.
• During the PCM flash process, it is critical not to allow the charging voltage to climb above 13.5 volts to prevent interruption or damage.

Symptoms

Owners of affected 2026 Jeep Compass vehicles may experience a lit "Malfunction Indicator Lamp (MIL) illumination" on the dashboard. This warning light is typically accompanied by one or more specific Diagnostic Trouble Codes (DTCs). Beyond the warning light, drivers might also notice performance issues such as "Engine power loss" and "Engine acceleration cuts out at times." These symptoms indicate a potential issue with the Powertrain Control Module (PCM) software.

Fault Codes / DTCs

When the Malfunction Indicator Lamp (MIL) illuminates, diagnostic scans may reveal the following Diagnostic Trouble Codes (DTCs):

Diagnosis and Trigger Conditions

The root cause of the 2026 Jeep Compass MIL P0032-00 and associated symptoms is identified as issues within the Powertrain Control Module (PCM) software. Diagnosis involves confirming the presence of the listed DTCs. If no DTCs are present, technicians are instructed to perform a specific test: after a two-minute warm-up cycle, the engine should be held at a constant 2,500 rpm. During this, the technician looks for visible, unintentional oscillation in the rpm needle (around 500 rpm) and corresponding engine sound frequency changes, which would indicate the underlying issue.

Repair Procedure Summary

Technical Service Bulletin (TSB) 18-044-25 REV. B outlines the steps to resolve the PCM software issue. The procedure begins by verifying if the vehicle's VIN is included in the Rapid Service Update (RSU) list. If the vehicle is applicable and DTCs P0032-00, P0133-00, or P0171-00 are present, or if engine rpm oscillation is observed during testing, the upstream oxygen sensor may need replacement. Following this, the Powertrain Control Module (PCM) is reprogrammed with the latest available software using a wiTECH diagnostic tool. Finally, all diagnostic trouble codes stored in any module are cleared.

Required Tools or Parts

To perform the repair described in TSB 18-044-25 REV. B, specific tools and parts are necessary:

• Diagnostic Tool: wiTECH or an equivalent scan tool.
• Replacement Part (if needed): Upstream Oxygen Sensor (Sonda Lambda Upstream), Part Numbers: 7099048 - SA or 68755193AA - EMEA.

Owner Action

If you own a 2026 Jeep Compass and are experiencing a lit Malfunction Indicator Lamp (MIL), engine power loss, or engine acceleration issues, especially if accompanied by the DTCs P0032-00, P0133-00, or P0171-00, you should contact your authorized Jeep dealer. Inform them about the symptoms and mention Technical Service Bulletin (TSB) 18-044-25 REV. B or Rapid Service Update (RSU) 25-125. This repair is reimbursable under warranty provisions.

Source: NHTSA ID 11023603