Service bulletins for the 2007 Chevrolet HHR
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.
842 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Transmission control module are shown. Show all
| 070730005 | 2007-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 4T45 TRANSMISSION, MIL/SES ON, DTC P1818, POWER DOOR LOCKS, CRUISE CONTROL, SHIFT INTERLOCK OR RETRACTABLE HARDTOP INOPERATIVE, ENGINE SPEED REVS LIMITED, HYBRIDS-AUTOSTOP, REGEN OR BOOST INOPERATIVE. (REPROGRAM TCM). *KB UPDATED 11/02/07. *NJ UPDATED 8/5/09. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.