# Service bulletin 17406

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.

- Type: Service bulletin
- NHTSA id: 10135168
- Published by NHTSA: 2018\-05\-07
- Manufacturer's number: 17406
- Manufacturer's date: 2018\-02\-27
- NHTSA component: STEERING; ELECTRICAL SYSTEM

## NHTSA's summary

17406 \- Service Update. Vehicles may be missing a seal plug in the electric power steering \(EPS\) connector cavity leading to corrosion. Vehicle may lose steering assist and/or set diagnostic trouble codes and driver information center messages. Dealers are to inspect EPS connector for missing seal plug and water intrusion or corrosion. Replace the EPS connector and electric dual pinion rack and power steering gear if water intrusion or corrosion is found.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10135168-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10135168-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Steering

## Vehicles listed

- 2017 to 2018 BUICK LACROSSE

## Recalls for the same vehicles and component

- [2017097](/recalls/tc/2017097.md), 2017-02-24: Steering
- [17V116000](/recalls/nhtsa/17V116000.md), 2017-02-23: STEERING:ELECTRIC POWER ASSIST SYSTEM

## Other bulletins for the same vehicles and component

- [18\-NA\-180](/bulletins/11024324.md), 2025-10-16, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information.
- [18\-NA\-180](/bulletins/11023365.md), 2025-09-26, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information.
- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [25\-NA\-087](/bulletins/11017595.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- [21\-NA\-139](/bulletins/11017443.md), 2025-05-01, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp \(MIL\) Illuminated \- DTC P3055 Set.
- [13\-08\-116\-001K](/bulletins/11017244.md), 2025-04-25, Service bulletin: ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
- [24\-NA\-098](/bulletins/11017207.md), 2025-04-24, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Service Programming System \(SPS\) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
- [25\-NA\-065](/bulletins/11017173.md), 2025-04-24, Service bulletin: STEERING; SERVICE BRAKES; FUEL/PROPULSION SYSTEM. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- [15\-06\-03\-001F](/bulletins/11017031.md), 2025-04-15, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- [16\-NA\-109](/bulletins/11014577.md), 2025-02-28, Service bulletin: STEERING. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.

JSON: [/v1/bulletins/10135168](/v1/bulletins/10135168)

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