# Service bulletin 536506A

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: 52567
- Published by NHTSA: 1997\-08\-14
- Manufacturer's number: 536506A
- Manufacturer's date: 1997\-06\-01
- Replaces: 53\-65\-06
- NHTSA component: ELECTRICAL SYSTEM:IGNITION:MODULE

## NHTSA's summary

DRIVELINE VIBRATION OVER 37 MPH \(REPLACE PROM\). \*TW

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Ignition

## Vehicles listed

- 1994 to 1995 BUICK LESABRE
- 1994 to 1995 BUICK PARK AVENUE
- 1995 BUICK RIVIERA
- 1994 to 1995 OLDSMOBILE 88
- 1994 to 1995 OLDSMOBILE 98
- 1994 to 1995 PONTIAC BONNEVILLE

## Other bulletins for the same vehicles and component

- [CMP/95C11B1](/bulletins/39726.md), 1995-11-01, Service bulletin: ELECTRICAL SYSTEM:IGNITION:MODULE. GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1995 BUICK PARK AVENUE AND RIVIERA MODEL VEHICLES EQUIPPED WITH A 3800 SERIES II ENGINE \(L36\) MAY HAVE A DECELERATION STALL UNDER LIMITED CONDITIONS. THIS COULD RESULT IN A LOSS OF POWER STEERING ASSIST, GENERATOR AND POWER BRAKING ASSIST. TO PREVENT THIS CONDITION FROM OCCURRING, DEALERS ARE TO REPLACE SUSPECT MEM\-CAL OF THE POWERTRAIN CONTROL MODULE \(PCM\) WITH A MEM\-CAL OF AN IMPROVED DESIGN. \*TW
- [CMP/95C11P1](/bulletins/39724.md), 1995-11-01, Service bulletin: ELECTRICAL SYSTEM:IGNITION:MODULE. GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1995 PONTIAC BONNEVILLE MODEL VEHICLES EQUIPPED WITH 3800 SERIES II ENGINE \(L36\) MAY HAVE A DECELERATION STALL UNDER LIMITED CONDITIONS. THIS COULD RESULT IN A LOSS A LOSS OF POWER STEERING ASSIST, GENERATOR AND POWER BRAKING ASSIST. TO PREVENT THIS CONDITION FROM OCCURRING, DEALERS ARE TO REPLACE THE SUSPECT MEM\-CAL OF THE POWERTRAIN CONTROL MODULE \(PCM\) WITH A MEM\-CAL OF AN IMPROVED DESIGN. \*TW

JSON: [/v1/bulletins/52567](/v1/bulletins/52567)

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