TSB: BUICK ACADIA, BOLT EV, CT6, ESCALADE, LACROSSE, MALIBU, SIERRA, SIERRA 1500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE, XT5, YUKON (2014–2018)
Bulletin PIT5535C — July 6, 2018
Bulletin Details
| Bulletin ID | PIT5535C |
| Manufacturer | BUICK |
| Models | ACADIA, BOLT EV, CT6, ESCALADE, LACROSSE, MALIBU, SIERRA, SIERRA 1500, SIERRA 3500, SILVERADO, SILVERADO 1500, SILVERADO 2500, SUBURBAN, TAHOE, XT5, YUKON |
| Model Years | 2014–2018 |
| Date Issued | July 6, 2018 |
| Date Added to NHTSA | August 20, 2018 |
| Component | LANE DEPARTURE: WARNING |
| Vehicles Affected | 120 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
This Preliminary Information communication provides information to the technician about vehicles thatmay have Service Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble
Affected Vehicles
| Make | Model | Year | Component |
|---|---|---|---|
| GMC | ACADIA | 2018 | 271000 LANE DEPARTURE: WARNING |
| GMC | ACADIA | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | ACADIA | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | BOLT EV | 2018 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | BOLT EV | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | BOLT EV | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | CT6 | 2018 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | CT6 | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | CT6 | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | ESCALADE | 2018 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | ESCALADE | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | ESCALADE | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| BUICK | LACROSSE | 2018 | 271000 LANE DEPARTURE: WARNING |
| BUICK | LACROSSE | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| BUICK | LACROSSE | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | MALIBU | 2018 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | MALIBU | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | MALIBU | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | SIERRA 3500 | 2018 | 271000 LANE DEPARTURE: WARNING |
| GMC | SIERRA 3500 | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | SIERRA 3500 | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SILVERADO 2500 | 2018 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SILVERADO 2500 | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SILVERADO 2500 | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SUBURBAN | 2018 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SUBURBAN | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SUBURBAN | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | TAHOE | 2018 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | TAHOE | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | TAHOE | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | XT5 | 2018 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | XT5 | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | XT5 | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | YUKON | 2018 | 271000 LANE DEPARTURE: WARNING |
| GMC | YUKON | 2018 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | YUKON | 2018 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | ACADIA | 2017 | 271000 LANE DEPARTURE: WARNING |
| GMC | ACADIA | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | ACADIA | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | BOLT EV | 2017 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | BOLT EV | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | BOLT EV | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | CT6 | 2017 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | CT6 | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | CT6 | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | ESCALADE | 2017 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | ESCALADE | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | ESCALADE | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| BUICK | LACROSSE | 2017 | 271000 LANE DEPARTURE: WARNING |
| BUICK | LACROSSE | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| BUICK | LACROSSE | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | MALIBU | 2017 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | MALIBU | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | MALIBU | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | SIERRA | 2017 | 271000 LANE DEPARTURE: WARNING |
| GMC | SIERRA | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | SIERRA | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SILVERADO | 2017 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SILVERADO | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SILVERADO | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SUBURBAN | 2017 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SUBURBAN | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SUBURBAN | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | TAHOE | 2017 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | TAHOE | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | TAHOE | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | XT5 | 2017 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | XT5 | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | XT5 | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | YUKON | 2017 | 271000 LANE DEPARTURE: WARNING |
| GMC | YUKON | 2017 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | YUKON | 2017 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | CT6 | 2016 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | CT6 | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | CT6 | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | ESCALADE | 2016 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | ESCALADE | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | ESCALADE | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | MALIBU | 2016 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | MALIBU | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | MALIBU | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | SIERRA 1500 | 2016 | 271000 LANE DEPARTURE: WARNING |
| GMC | SIERRA 1500 | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | SIERRA 1500 | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SILVERADO 2500 | 2016 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SILVERADO 2500 | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SILVERADO 2500 | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SUBURBAN | 2016 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SUBURBAN | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SUBURBAN | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | TAHOE | 2016 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | TAHOE | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | TAHOE | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | YUKON | 2016 | 271000 LANE DEPARTURE: WARNING |
| GMC | YUKON | 2016 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | YUKON | 2016 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CADILLAC | ESCALADE | 2015 | 271000 LANE DEPARTURE: WARNING |
| CADILLAC | ESCALADE | 2015 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CADILLAC | ESCALADE | 2015 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | SIERRA 1500 | 2015 | 271000 LANE DEPARTURE: WARNING |
| GMC | SIERRA 1500 | 2015 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | SIERRA 1500 | 2015 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SILVERADO 2500 | 2015 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SILVERADO 2500 | 2015 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SILVERADO 2500 | 2015 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SUBURBAN | 2015 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SUBURBAN | 2015 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SUBURBAN | 2015 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | TAHOE | 2015 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | TAHOE | 2015 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | TAHOE | 2015 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | YUKON | 2015 | 271000 LANE DEPARTURE: WARNING |
| GMC | YUKON | 2015 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | YUKON | 2015 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| GMC | SIERRA 1500 | 2014 | 271000 LANE DEPARTURE: WARNING |
| GMC | SIERRA 1500 | 2014 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| GMC | SIERRA 1500 | 2014 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
| CHEVROLET | SILVERADO 1500 | 2014 | 271000 LANE DEPARTURE: WARNING |
| CHEVROLET | SILVERADO 1500 | 2014 | 275100 LANE DEPARTURE: SENSING SYSTEM: CAMERA |
| CHEVROLET | SILVERADO 1500 | 2014 | 274200 LANE DEPARTURE: LANE KEEP: STEERING ASSIST |
Related BUICK Recalls
What Should You Do?
If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (PIT5535C) 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.