Truck Issues - Fix It Right the First Time

Model Year(s)

Vehicle Line(s) / Condition

Do This

Don't Do This

Reference Information / Bulletin Number

2008-09

Canyon; Colorado; Envoy; H3; 9-7x; TrailBlazer - DTCs P0300-P0306, engine runs rough

Inspect for water intrusion in spark plug recess area, replace spark plug and ignition coil, seal ignition coil bolt hole

Don't fail to check for water intrusion

09-06-04-025

2000-09

Avalanche; Sierra; Silverado; Suburban; Tahoe; Yukon; Yukon Denali; Yukon XL; Yukon XL Denali
Whine or click from front axle side bearing adjusters

Inspect/replace with new lock rings

Don't replace axle assembly

09-04-19-001

2007-10

Avalanche; Sierra; Silverado - Clunking noise from rear of vehicle

Re-torque rear leaf springs

Don't replace rear leaf springs

09-03-09-001

2008-09

Silverado - Loose front fog lamp

Install revised fog lamp retainers

Don't replace the fog lamp assembly

09-08-42-003

2007-09

Escalade; Escalade ESV; Escalade EXT - Wheel center cap loose

Inspect for retaining wire/ring

Don't replace wheel center cap

09-03-10-007

2009

Escalade; Escalade ESV; Escalade EXT; Sierra; Silverado; Tahoe; Yukon; Yukon Denali; Yukon XL; Yukon XL Denali - Brakes grabby, DTC C012E

Reprogram EBCM

Don't replace EBCM

09-05-22-003

2007-10

Acadia; Enclave; Outlook; Traverse - Sunroof rear sunshade binds

Replace module end caps

Don't replace sunroof module

09-08-67-009

2007-09

Canyon; Colorado - Front door glass inoperative

Install threadlocker on window regulator mounting bolts and studs

Don't replace the door window regulator

09-08-64-013A

2007-08

Acadia; Outlook - General water leak diagnostic guide

Perform repairs per the bulletin

 Don't replace sunroof module or moveable glass

07-08-57-002F