TSB: CADILLAC CORVETTE, ESCALADE, ESCALADE ESV, ESCALADE EXT, SIERRA, SILVERADO, SUBURBAN, TAHOE, XLR, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL, YUKON XL 1500, YUKON XL 2500 (2007-2008)

Bulletin SB-08-07-30-021 - June 1, 2010

Bulletin Details

Bulletin IDSB-08-07-30-021
ManufacturerCADILLAC
ModelsCORVETTE, ESCALADE, ESCALADE ESV, ESCALADE EXT, SIERRA, SILVERADO, SUBURBAN, TAHOE, XLR, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL, YUKON XL 1500, YUKON XL 2500
Model Years2007-2008
Date IssuedJune 1, 2010
Date Added to NHTSAAugust 28, 2008
ComponentENGINE AND ENGINE COOLING:ENGINE
Vehicles Affected150 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls, they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

LOSS OF HIGH SPEED GMLAN COMMUNICATIONS, INTERMITTENT NO CRANK, IPC GAUGE FLUCTUATION, INTERMITTENT DOOR LOCK CYCLING, TRANSMISSION MAY NOT SHIFT, DTCS U0073, U0100, U0101, U0102, U0121, U0140 SET (REPAIR BACKED OUT TERMINAL IN TRANSMISSION

Affected Vehicles

MakeModelYearComponent
CHEVROLET CORVETTE 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET CORVETTE 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET CORVETTE 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET CORVETTE 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET CORVETTE 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC ESCALADE 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC ESCALADE 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC ESCALADE 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC ESCALADE 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC ESCALADE ESV 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC ESCALADE ESV 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE ESV 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC ESCALADE ESV 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC ESCALADE ESV 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC ESCALADE EXT 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC ESCALADE EXT 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE EXT 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC ESCALADE EXT 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC ESCALADE EXT 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC SIERRA 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC SIERRA 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC SIERRA 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC SIERRA 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET SILVERADO 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SILVERADO 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET SILVERADO 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET SILVERADO 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET SUBURBAN 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SUBURBAN 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET SUBURBAN 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET SUBURBAN 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET TAHOE 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET TAHOE 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TAHOE 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET TAHOE 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET TAHOE 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC XLR 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC XLR 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC XLR 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC XLR 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC XLR 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON DENALI 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON DENALI 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON DENALI 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON DENALI 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON DENALI XL 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON DENALI XL 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI XL 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON DENALI XL 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON DENALI XL 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON XL 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON XL 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON XL 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON XL 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON XL 1500 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON XL 1500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 1500 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON XL 1500 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON XL 1500 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON XL 2500 2008 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON XL 2500 2008 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2500 2008 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON XL 2500 2008 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON XL 2500 2008 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET CORVETTE 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET CORVETTE 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET CORVETTE 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET CORVETTE 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET CORVETTE 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC ESCALADE 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC ESCALADE 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC ESCALADE 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC ESCALADE 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC ESCALADE ESV 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC ESCALADE ESV 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE ESV 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC ESCALADE ESV 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC ESCALADE ESV 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC ESCALADE EXT 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC ESCALADE EXT 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC ESCALADE EXT 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC ESCALADE EXT 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC ESCALADE EXT 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC SIERRA 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC SIERRA 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC SIERRA 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC SIERRA 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC SIERRA 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET SILVERADO 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SILVERADO 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SILVERADO 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET SILVERADO 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET SILVERADO 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET SUBURBAN 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET SUBURBAN 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET SUBURBAN 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET SUBURBAN 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET SUBURBAN 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CHEVROLET TAHOE 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CHEVROLET TAHOE 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TAHOE 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CHEVROLET TAHOE 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CHEVROLET TAHOE 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CADILLAC XLR 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
CADILLAC XLR 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC XLR 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
CADILLAC XLR 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CADILLAC XLR 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON DENALI 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON DENALI 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON DENALI 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON DENALI 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON DENALI XL 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON DENALI XL 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON DENALI XL 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON DENALI XL 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON DENALI XL 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON XL 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON XL 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON XL 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON XL 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON XL 1500 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON XL 1500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 1500 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON XL 1500 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON XL 1500 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
GMC YUKON XL 2500 2007 061000 ENGINE AND ENGINE COOLING:ENGINE
GMC YUKON XL 2500 2007 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC YUKON XL 2500 2007 103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
GMC YUKON XL 2500 2007 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
GMC YUKON XL 2500 2007 117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CADILLAC dealer. Bring this bulletin ID (SB-08-07-30-021) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage, manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix, the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.