
HOLDEN SERVICE TECHLINE_________________________________________________________________ APRIL, 2003
INFORMATION
Seat Belts Replaced For Complaint Of
Not Extending
UES Frontera, YG Cruze, RA Rodeo
(GROUP 1) TL253A-0304
This Techline supercedes the previous one in Issue
4, May, 2002. It is revised by adding YG & RA
models.
PROBLEM DESCRIPTION
Numerous seat belts returned through the warranty
system cannot be faulted. The reason for
replacement of these belts is given as "seat belt will
not extend" or "seat belt jamming".
It appears that customers and Retailer staff may be
unaware of the Auto Locking Ratchet (ALR) system.
Refer to following for explanation of ALR.
Automatic Locking Ratchet (ALR) Mechanism.
The rear outer seat belts (all rears on RA Rodeo) and
left hand front seat belt have an Automatic Locking
Ratchet (ALR) mechanism. When this mechanism is
activated it will only allow the belt to retract. When
the mechanism is de-activated the belt can be
extended or retracted as normal.
To activate the ALR mechanism, extend the seat
belt to its maximum length.
To de-activate the ALR mechanism, allow the seat
belt to retract fully.
The ALR function may be useful as an additional
means of locating a child seat, when used in
conjunction with the approved child restraint anchor
points.
Note: It is always better to install a child restraint in
the rear seat.
SERVICE RECOMMENDATION
To avoid mis-diagnosis of seat belts, Holden Retailer
frontline staff should familiarise themselves with the
operation of the ALR system . They will then be able
to explain this feature to any customers who
complain that their seat belts “will not extend” or are
“jamming”.
NOTE: Seat belts replaced unnecessarily for
complaint of “not extending” will not be accepted as
warranty.
SERVICE FIX
LSD Shudder/Chatter Noise
Jackaroo, TF & RA Rodeo, Frontera
(GROUP 4) TL442-0304
PROBLEM DESCRIPTION
There have been some reports to TAS and in PIRs of
rear Limited Slip Differential (LSD) chatter on the
Light Commercial Vehicle (LCV) range.
These vehicles all use similar types of LSD and share
the same factory fill of API GL5 LSD Oil, which
contains additives to reduce the amount of chatter
from the differential arising from normal operation.
NOTE: Normal operation of these LSD's will produce
some noise. They are designed so that the amount
of differential movement between the two axle halves
is limited by the use of pre-loaded multiplate clutches.
This means that until the torque difference limit of the
clutches is reached, any differential movement
between the wheels will be taken up by slippage of
the tyres, resulting in noise. When the torque
difference reaches the limit, the clutches may
experience a stick/slip condition resulting in noise.
This will be particularly noticeable on cornering under
power during takeoff etc.
SERVICE RECTIFICATION
Summary: On complaint vehicles add Friction
Modifier Additive to rear axle.
If an owner complains of differential noises that are
caused by LSD operation and the differential oil is of
the correct specification and has not been
contaminated it is recommended to add LSD friction
modifier additive (P/N 1052358) to reduce the noise.
On vehicles that have done 10,000km or less
since last rear axle oil change- the additive can be
poured directly into the differential housing. It may
first be necessary to ensure enough capacity in the
housing by draining approximately 120ml of oil from
the rear axle.
On vehicles that have done more than 10,000km
since last rear axle oil change - drain the
differential when warm. Then pour in the additive and
fill the differential with the specified lubricant.
Friction Modifier Run-in. The friction modifier
requires a run-in to work the additive into the clutch
plates. This can be done either by normal driving
(may take up to 1000 kms), or alternatively, the
Retailer or customer may perform up to 10 minutes of
figure 8 driving on a hard flat surface.