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An official Health Canada notice concerns Honda. On certain Hybrid-powered vehicles, the direct voltage converter (DC-DC), which converts the 158 volts of the Integrated Motor Assist (IMA) battery into the 12 volts required to power the 12-volt battery and electrical components of the vehicle, may have been damaged during testing prior to vehicle assembly. If excessive voltage was applied to the diode chip during testing, the diode chip may be damaged. The performance of a damaged diode chip degrades over time and may cause the DC-DC converter to short circuit and the main fuse for the 12-volt battery to blow. A blown main fuse will prohibit power from being provided to the vehicle's electrical components, which will cause the headlights to turn off, the engine to stall, and prevent the vehicle from being restarted. Engine stalling would result in lost propulsion which, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will replace the DC-DC converter. Published 2011-05-05.
What to do now
Please see corrective actions section below
Recall number
71420
Official notice
2011-05-05
The hazard
The hazard
On certain Hybrid-powered vehicles, the direct voltage converter (DC-DC), which converts the 158 volts of the Integrated Motor Assist (IMA) battery into the 12 volts required to power the 12-volt battery and electrical components of the vehicle, may have been damaged during testing prior to vehicle assembly. If excessive voltage was applied to the diode chip during testing, the diode chip may be damaged. The performance of a damaged diode chip degrades over time and may cause the DC-DC converter to short circuit and the main fuse for the 12-volt battery to blow. A blown main fuse will prohibit power from being provided to the vehicle's electrical components, which will cause the headlights to turn off, the engine to stall, and prevent the vehicle from being restarted. Engine stalling would result in lost propulsion which, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will replace the DC-DC converter.
How to check if you're affected
How to check if you're affected
Compare the VIN on your vehicle against the official list. If your VIN is listed, follow the official notice.
Recall Numbers
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Affected products
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Risk / hazard
Where it was sold
Where it was sold
The source does not list specific retailers. See the official notice for where affected products were sold.
Location 1
Affected area 1
Company & contacts
Company & contacts
Brand: Honda.
Source & status
Source & status
Source
Tier
Category
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Recall details
Recall details
Recall number
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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