GMC Yukon 2000–2006

Outside the documents and the records

None of the four pages read is a record of the Yukon or Yukon XL. Two are a shop's records of the Hummer H3 (model year not given; not a vehicle of the Yukon's family), and two are Q&A threads on the Silverado (2001 and 2004). The 2001 Silverado thread holds only questions and advice, with no repair outcome reported.

• Sky Auto writes, in two Hummer H3 records (2017 and 2024), that a vehicle whose engine sometimes would not start showed a Passlock (security) fault on the diagnostic computer and that the Passlock module was replaced. スカイオート（埼玉）スカイオート（埼玉）
• In its two Hummer H3 records (2017 and 2024) Sky Auto explains that the Passlock module is in effect the ignition switch, and writes that the replacement starts by taking off the steering wheel and works inward from there. スカイオート（埼玉）スカイオート（埼玉）
• In its two Hummer H3 records (2017 and 2024) Sky Auto writes that the engine would not start on the module swap alone and that the job was finished with programming after the swap (described as registering the Passlock in the 2017 record). The 2024 record adds that the engine was then confirmed to start. スカイオート（埼玉）スカイオート（埼玉）
• The owner of the 2004 Silverado (4.3L) on 2CarPros writes that the engine started and died after about two seconds with the security lamp looking normal and no codes stored, that the cause was the Passlock sensor, and that it started after a 30-minute relearn (whether the sensor was replaced is not said). 2CarPros

The sentences above were written by FaultCrate from what shops' public pages and Q&A sites state as fact (none of the pages' wording is shown; a second reader checked each against its pages). A record of another vehicle says which vehicle. A Q&A thread is a question and advice, and may not say how the repair ended. The links below are places to look; the contents of pages not read were not checked.