2026 Jeep Compass PCM Update for MIL and DTCs

Owners of the 2026 Jeep Compass may encounter specific engine performance problems accompanied by the illumination of the Malfunction Indicator Lamp (MIL). These symptoms, including engine power loss and intermittent acceleration cuts, are addressed by a manufacturer communication, NHTSA ID 11020627.

Important Note for Owners

This bulletin explicitly states that it is "Not applicable to vehicles built for US Market." Owners of 2026 Jeep Compass vehicles in the US should be aware that this particular service action does not apply to their vehicles.

Symptoms

If your 2026 Jeep Compass is affected by the conditions described in this manufacturer communication, you may observe one or more of the following issues:

• "Malfunction Indicator Lamp (MIL) illumination"
• "Engine power loss"
• "Engine acceleration cuts out at times"

Fault Codes (DTCs)

These symptoms are typically associated with specific Diagnostic Trouble Codes (DTCs) that may be stored in the vehicle's system. The bulletin lists the following DTCs:

• P0032-00: "Comando Do Aquecedor De Sonda Lambda Pré-catalisador - Circuito Alto"
• P0133-00: "Sonda Lambda Pré-catalisador - Resposta Lenta"
• P0171-00: "Sonda Lambda Pré-catalisador - Mistura Pobre"

Diagnosis

Diagnosis for the 2026 Jeep Compass manufacturer_communication issue involves checking for an illuminated Malfunction Indicator Lamp (MIL) and verifying the presence of one or more of the specified DTCs. These codes indicate a problem with the pre-catalyst oxygen sensor or the engine's air-fuel mixture.

Repair Procedure Summary

The recommended repair for the 2026 Jeep Compass manufacturer_communication involves two main steps. First, the Powertrain Control Module (PCM) needs to be reprogrammed with the latest available software. Second, depending on the diagnosis and the effectiveness of the software update, the upstream oxygen sensor may require replacement.

Owner Action

If your 2026 Jeep Compass exhibits the described symptoms and DTCs, and is not a US market vehicle, it is recommended to contact an authorized service center. They can perform the necessary diagnostic checks, apply the PCM software update, and replace the upstream oxygen sensor if required, as outlined in manufacturer communication NHTSA ID 11020627.

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Source: NHTSA ID 11020627