Automatic Transmission Fluid
(Except Allison Transmission
®
)
When to Check and Change
A good time to check your automatic transmission fluid
level is when the engine oil is changed.
Change both the fluid and filter every 50,000 miles
(83 000 km) if the vehicle’s GVWR is over 8,600 or if
the vehicle is mainly driven under one or more of these
conditions:
•
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
•
In hilly or mountainous terrain.
•
When doing frequent trailer towing.
•
Uses such as found in taxi, police or delivery
service.
If your vehicle’s GVWR is not over 8,600 and you do
not use your vehicle under any of these conditions,
change the fluid and filter every 100,000 miles
(166 000 km).
See
Scheduled Maintenance on page 6-4.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at the dealership service
department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
Notice: Too much or too little fluid can damage
your transmission. Too much can mean that some
of the fluid could come out and fall on hot engine
part or exhaust system parts, starting a fire.
Too little fluid could cause the transmission to
overheat. Be sure to get an accurate reading if you
check your transmission fluid.
Wait at least 30 minutes before checking the
transmission fluid level if you have been driving:
•
When outside temperatures are above 90°F (32°C).
•
At high speed for quite a while.
•
In heavy traffic – especially in hot weather.
•
While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which is 180°F to 200°F
(82°C to 93°C).
5-25
Summary of Contents for 2004 Sierra 1500 Pickup
Page 5: ...These are some examples of symbols you may find on your vehicle v...
Page 19: ...Put someone on it Get it up to speed Then stop the vehicle The rider doesn t stop 1 13...
Page 167: ...NOTES 3 3...
Page 168: ...Instrument Panel Overview 3 4...
Page 202: ...Canada with Passenger Sensing System Canada without Passenger Sensing System 3 38...
Page 296: ...NOTES 3 132...
Page 400: ...NOTES 4 104...
Page 416: ...When you lift up the hood on the VORTEC 8100 V8 engine you will see the following 5 16...
Page 507: ...Front Position 2WD 1500 Series Rear Position 5 107...
Page 530: ...5 130...
Page 570: ...NOTES 7 14...