Service bulletin 08-091-21

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates This bulletin involves reprogramming the HCP and AHCP or also known as Power Inverter Module (PIM) with the latest available software. Technicians and/or customers may report the vehicle will not pass a state smog check due to permanent fault codes which will not clear. As a result, the vehicles are not eligible to be registered in certain states. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) have been set: P0513 - Invalid Skim Key. U151A-87 - Hybrid Control Processor Secret Code-Missing Message. Customers may also experience the following symptom/conditions:Vehicle does not start when pushing ignition switch with DTC P0513 and U151-A87 (stored or active). Scheduled charging start/end does not align with displayed time (ex: 12:05pm end time on radio, but charging ends at 12:06pm). Scheduled charging does not start following a power outage. Scheduled Cabin Conditioning (SCC) feature will not function properly if they schedule the departure time in between 50 mins to 480 mins at extreme cold ambient temps (below -24°c (-11°f)). ?Charge Now? soft button does not always work. The vehicle will get a rough engine spin-down, and then ?Service Charging System? warning and shutdown if the vehicle is quickly re-cranked after the initial key crank. Unable to pass a smog check for certain states that require no DTCs present (stored or active). Vehicle shutdown (MIL set) if the acceleration pedal is 100% on ice. Vehicle may not have a successful 2nd remote start if customer happens to request it immediately after 1st remote start without letting the vehicle sleep while at low High Voltage (HV) battery State of Charge (SOC). Vehicle may not achieve propulsion through a cold key crank if the HV battery was not conditioned using thermal periodic wakeup featur

The document

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The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Trouble codes named

P0513, U151A

Listing a model year does not mean every vehicle of it is concerned: the document says which.

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

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