GMT900 (3rd gen)
Key reference: 15824471
Verified · record updated 7 May 2026
Key
Compatible tools
ConfirmedOBD port
Driver's side, under the dashboard to the left of the steering column. No cover — directly accessible. Standard 16-pin OBD-II connector. Confirmed by multiple 2007-2014 Tahoe/Suburban forum posts ('right up under the dash just to the left of the steering wheel').
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