Porsche Cayenne 2011–2013 — technical service bulletin
Bulletin 122-L4A6G-06 · NHTSA communication 10109266 · issued Sep 3, 2013
Technical service bulletin
communication type
Power Train
component
2011–2013
model years
3
vehicle entries
Official summary
Concerns: Rear-differential lock control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. With the current data record for regulating the rear-differential lock, there may be increased wear on the pinion shaft on the servo motor for the rear-differential lock as a result of extreme driving over the service life of the vehicle. This can cause noises and can subsequently impair the function of the rear-differential lock.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.