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Cadillac DeVille Problems

Updated PROM Chip Available for Powertrain Control Module on Cadillac DeVille

Problem Description and Possible Solution

An updated PROM (Programmable Read Only Memory) chip may be available for the powertrain control module (PCM). Check with your dealer.

(8 people reported this problem)

Cadillac DeVille Vehicles With This Problem

RepairPal Verified
Average mileage: 89,000 (89,000–89,000)
Exhaust & Emissions affected: 4.9L V8
6 model years affected: 1990, 1991, 1992, 1993, more1994, 1995
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