- Engine / equipment
- Porsche Cayenne (9YA) with an LG 12 V battery
- Period mentioned
- 2018–2019
- Symptoms
- The 12 V battery runs flat and the yellow battery low message appears on the instrument cluster.
- Possible cause described
- A battery sensor with software older than version 1000 can, together with other factors, cause a high standby current (over 1 A) after charging. Porsche says to reprogram it from the gateway control unit (Technical Information 168/18).
- Check for the garage
- Before replacing the battery, ask the garage to check the battery sensor software level in the gateway control unit and, if it is below 1000, to reprogram it.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Porsche
Flat battery and "Battery low, service necessary" message caused by the battery sensor software (Cayenne 2018–2019)
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; ask the garage for a quote.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Before replacing the battery, ask the garage to check the battery sensor software level in the gateway control unit and, if it is below 1000, to reprogram it.
What are the symptoms?
The 12 V battery runs flat and the yellow battery low message appears on the instrument cluster.
Which cars and years does it affect?
- Brands
- Porsche
- Engine / equipment
- Porsche Cayenne (9YA) with an LG 12 V battery
- Period mentioned
- 2018–2019
Taking it to a garage?
Models with this entry
- Porsche Cayenne (9Y0)2017–2026
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