Is it time to move on? Support NPR & the programs you love. Donate your old car in minutes through the CarTalk Vehicle Donation Program.

September 3: GM's Special Coverage N192219480 Program Closes Investigation investigations | 85 days ago
September 2: Chevy 'Shift to Park' Class Action Lawsuit: GM Says Toss It Out news | 86 days ago

Buick TSB #PIT4730B

2011 Buick Lucerne

Summary: This Preliminary Information communication a diagnostic tip if the high speed lan bus is shorted to ground, which can cause the BCM to appear off line.

Click a tab for more information.

Find something helpful? Spread the word. Share on Facebook Retweet this page Email this page