# Service bulletin PI1097A

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: 10140440
- Published by NHTSA: 2018\-06\-11
- Manufacturer's number: PI1097A
- Manufacturer's date: 2014\-07\-31
- NHTSA component: STEERING:HYDRAULIC POWER ASSIST SYSTEM

## NHTSA's summary

This preliminary bulletin provides a procedure to repair a possible loose ground and/or reprogram the power steering module to correct the customers concern of intermittent Service Power Steering message on.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10140440-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10140440-0001.pdf)

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

## Components

Steering, Power steering

## Vehicles listed

- 2013 to 2014 CADILLAC ATS

## Other bulletins for the same vehicles and component

- [PIE0271](/bulletins/10252873.md), 2024-04-08, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM. Engineering Information.
- [PIT5076C](/bulletins/10247717.md), 2023-12-26, Service bulletin: UNKNOWN OR OTHER; STEERING:ELECTRIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM. Learning Issues When Repairing Service Stability/Traction Message.
- [18207 01](/bulletins/10212573.md), 2022-05-31, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING:COLUMN; STEERING. Customer Satisfaction. Certain vehicles may have a condition in which the power steering gear motor could separate from the steering gear housing due to corrosion of the attaching bolts. If the motor separates, power steering assist may be reduced or lost, and the driver may experience an unexpected increase in steering effort, especially at low speeds. Replace the bolts that attach the electric power steering motor to the steering gear and add a protective wax coating to each bolt and the seam around the electric power steering motor. If the bolts cannot be removed due to corrosion, the steering gear must be replaced. \*\* Revised Parts Information \*\*
- [18207](/bulletins/10212570.md), 2022-05-31, Service bulletin: POWER TRAIN; STEERING:ELECTRIC POWER ASSIST SYSTEM; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; WHEELS; STEERING; AIR BAGS; ENGINE AND ENGINE COOLING; STEERING:COLUMN. Customer Satisfaction. Certain vehicles may have a condition in which the power steering gear motor could separate from the steering gear housing due to corrosion of the attaching bolts. If the motor separates, power steering assist may be reduced or lost, and the driver may experience an unexpected increase in steering effort, especially at low speeds. Replace the bolts that attach the electric power steering motor to the steering gear and add a protective wax coating to each bolt and the seam around the electric power steering motor. If the bolts cannot be removed due to corrosion, the steering gear must be replaced.
- [18135 01](/bulletins/10143681.md), 2018-08-20, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; STEERING. 18135\-01 \- Customer Satisfaction Program. Certain vehicles may have a condition in which power steering software may disable power steering assist within a few seconds after a warm restart, or while idling or driving at very low speeds following a warm restart. If this occurs, a chime will sound and the vehicle?s driver information center will display the following message: ?DRIVE WITH CARE \& SERVICE POWER STRG.ASSIST?. Restarting the vehicle may resolve the software fault. Reprogram the power steering control module.
- [12\-02\-32\-002A](/bulletins/10134625.md), 2018-04-23, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; STEERING. This technical bulletin provides a revision for 12\-02\-32\-002 to add the 2013\-2014 model years, add noise as a possible condition and add a Note in the Instructions section.
- [PIC5791A](/bulletins/10112904.md), 2017-08-15, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING; ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that upon starting the engine the Driver Information Center displayed a Service Power Steering message and experienced a loss of steering assist. Technician will need to update the Power Steering Control Module using Service Programming System through Tis2Web with the latest calibrations available.
- [PIC5791](/bulletins/10112722.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; STEERING:ELECTRIC POWER ASSIST SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that upon starting the engine the Driver Information Center displayed a Service Power Steering message and experienced a loss of steering assist. Technician will need to update the Power Steering Control Module using Service Programming System through Tis2Web with the latest calibrations available.
- [PIT5076C](/bulletins/10112466.md), 2017-08-15, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT:ELECTRICAL; STEERING:ELECTRIC POWER ASSIST SYSTEM. This Preliminary Information communication advises the technician to insure that global diagnostic service 2 diagnostic packages are up to date prior to learning the steering angle sensor for a diagnostic trouble code C710 symptom code 71 set in the electronic brake control module or the power steering control module. When rechecking for diagnostic trouble codes a U0074 U0077, U0180D, U01293, U0126, U0125, C0186, C0196, or C0287 are set and will not clear diagnose the Chassis bus. If no fault is found in the chassis bus check for an multiple diagnostic interface to data link connector issue. Technician is to try a different multiple diagnostic interface cable and attempt the steering angle sensor learn again following service information instruction then try to clear the codes again.
- [SB\-16\-NA\-109](/bulletins/10078430.md), 2016-08-06, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM. "THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE STEERING GEAR FOR A NORMAL CONDITION OF GREASE OR SEALANT ON EXTERIOR CASE OF GEAR DUE TO THE MANUFACTURING PROCESS."

JSON: [/v1/bulletins/10140440](/v1/bulletins/10140440)

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