DeVille V8-4.6L VIN 9 (1995)
Tires: All Technical Service Bulletins
Suspension/Tires - Ride is Harsh or Overly Sensitive
File In Section: 3 - Steering/Suspension
Bulletin No.: 53-33-09
Date: January, 1996
Subject:
Vehicle Ride is too Harsh or Sensitive to Road Surface Irregularities (Check Tire Pressure/Install "Soft Ride" Speed Sensitive Suspension (SSS)
Module)
Models:
1994-95 Cadillac DeVille with Speed Sensitive Suspension
Condition
Some owners of the above vehicles equipped with Speed Sensitive Suspension (SSS) may comment that the ride is too harsh or sensitive to irregularities
in the road surface. This may be especially noticeable at speeds of 30-65 mph (48-105 km/h).
Cause
This condition can be the result of over-inflated tires. It may also be modified by the SSS controller calibration.
Correction
1.
Check tire pressure. There should be no more than 30 psi (207 kPa) in any of the tires at room temperature (72° F; 22° C). The tire pressure can be
lowered to 28 psi (193 kPa) if a satisfactory ride feel is achieved.
2.
An SSS controller with a revised calibration is available. This calibration changes the speeds at which the ride mode shifts from COMFORT to
NORMAL to FIRM and back again. This new controller can be used when SSS and chassis performance is normal as compared to other similarly
equipped vehicles.
Parts Information
Description
P/N
Soft Ride SSS Module
22153447
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
T2455 - (Add Failure Code 99 and
0.3 hr
Complaint Code MJ)
