{"vehicle":{"id":"1991_gmc_b7","year":1991,"make":"GMC","model":"B7"},"as_of":"2026-10-19","counts":{"count":2,"by_type":[{"id":"service_bulletin","name":"Service bulletin","count":2}],"components":[{"id":"engine","name":"Engine","count":1},{"id":"exhaust-emissions","name":"Exhaust and emissions","count":1},{"id":"steering","name":"Steering","count":1}],"codes":[],"topics":[]},"bulletins":[{"nhtsa_id":10004297,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-12-02","date":"2004-09-01","document_id":"030232044","mfr_campaign":null,"component":"STEERING","summary":"EFFECT OF STEERING BOX LIMITER ADJUSTMENT ON TURNING RADIUS AND POSSIBILITY OF POWER STEERING SYSTEM DAMAGE DUE TO IMPROPER ADJUSTMENT. VARIOUS 1990-2004 MODELS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10004297"},{"nhtsa_id":600270,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-05-01","date":"1998-02-01","document_id":"98831110","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","summary":"VEHICLES WITH 6.0L AND 7.0L ENGINES (VINS P, M - RPOS LS0, LR0) MAY EXHIBIT ENGINE EXHAUST NOISE WHICH IS LOUDEST DURING COLD ENGINE OPERATION. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/600270"}],"next_cursor":null,"note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}