Service bulletins for the 2011 Chevrolet Suburban
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.
1645 on file from NHTSA, as of 2026-10-19.
By type
By component
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Only bulletins with component: Transmission and driveline are shown. Show all
| 08-07-30-021G | 2012-04-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). GM: LOSS OF HIGH SPEED GMLAN COMMUNICATIONS, INTERMITTENT NO CRANK, IP GAGE FLUCTUATION, INTERMITTENT DOOR LOOK CYCLING, INTERMITTENT CHIME OPERATION, VARIOUS IP WARNING LAMPS ILLUMINATED, TRANSMISSION MAY NOT SHIFT, COMMUNICATION DTCS U0073, U0100, U0101, U0102 U0121 OR U0140 SET (REPAIR TERMINALS IN TRANSMISSION HARNESS CONNECTOR, REPAIR OPEN OR SHORTED GM HIGH SPEED LAN CIRCUITS, OPEN OR SHORTED DATA LINK RESISTOR, CORROSION OR POOR CONNECTIONS IN VARIOUS CONTROL MODULE CONNECTORS). *JS |
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| PI-0488 | 2011-08-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). GM: THE TRANSMISSION IS SLIPPING OR HAS NO FORWARD/REVERSE MOVEMENT. *RM UPDATED 4/16/12. *PE UPDATED 6/18/12. *PE UPDATED ON 7/09/2013. *KB |
| PI-0320 | 2011-06-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. GM: THERE ARE COMPLAINTS OF CERTAIN GEARS NOT WORKING OR NO REVERSE. THERE IS ALSO A POSSIBILITY OF TWO INTERNAL TROUBLE CODES. *RM |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.