Service bulletins for the 1999 GMC B7
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.
25 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Steering are shown. Show all
| SB-06-02-32-013B | 2010-03-26. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:PUMP. SAAB/HUMMER/GM: DIAGNOSTIC TIPS/RECOMMENDATIONS WHEN POWER STEERING PUMP REPLACEMENT IS NECESSARY. ANALYSIS OF RETURNED POWER STEERING (PS) PUMPS THAT HAD BEEN REPLACED FOR NOISE, NO POWER ASSIST, NO OR LOW PRESSURE AND LEAKING CONDITIONS HAS INDICATED A HIGH NUMBER OF NO TROUBLE FOUND RESULTS. ALL 1997-2010 VEHICLES AND LIGHT TRUCKS; 2010 AND PRIOR HUMMERS H2/H3 AND SAAB 9-7X VEHICLES. *PE |
|---|---|
| 030232044 | 2003-12-02. Service bulletin. STEERING. 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 |
| 051000 | 2001-03-24. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:PUMP. SUBJECT REGARDING POWER STEERING PUMP INLET ADAPTOR INSTALLATION. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.