1997 GMC JIMMY ECU

Return the jack, wheel wrench and wheel blocks to the
proper location in your vehicle’s rear area. Secure the
items and replace the jack cover.
I /-A
I L
A. Retainer E Wheel Blocks
B. Rubber Band
G. Hub Cap Removal
(Some Models) Tool (Some Models)
C. Work Gloves
H. Wheel Wrench
D. Mat I. Jack
E. Jack Storage Cover J. Jacking Instructions
Make sure the tire and carrier are secure.
Driving with the tire or carrier unlatched could
injure pedestrians or damage the vehicle.
Compact Spare Tire (If Equipped)
Although the compact spare tire was fully inflated when
your vehicle was new, it can lose air after a time. Check
the inflation pressure regularly. It should be
60 psi
(420 Wa).
After installing the compact spare on your vehicle,
you should stop as soon as possible and make sure
your spare tire is correctly inflated. The compact
spare is made to perform well at speeds up to
65 mph
(105 km/h) for distances up to 3,000 miles (5 000 km),
so you can finish your trip and have your full-size tire
repaired or replaced where
you want. Of course, it’s best
to replace your spare with a full-size tire as
soon as you
can. Your spare will last longer and be in good shape in
case you need it again.
5-35

Engine Oil Additives
Don't add anything to your oil. YOLK GM dealer is ready
to advise
if you think something should be added.
When to Change Engine Oil
If any one of these is true for you. LIS~ the short trip/city
. maintenxm schedule:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving
in stop-and-go traffic).
0 You operate your vehicle in dusty areas or
off-road frequently.
YOLI frequently tow a trailer or use a carrier on top of
your vehicle.
The vehicle is used for delivery service, police, taxi
or other commercial application. Driving under
these conditions causes engine oil to
break
down sooner. If any one of these is true for your
vehicle. then you need to change your
oil and filter
every
3.000 miles (5 000 km) or 3 months -- whichever
occurs first.
Remote Oil Filter (Four-wheel Drive)
The ;1ccess door for the remote oil filter is in the steering
linkage shicld
assembly located under the radiator
support. Twist the
screw to unlock or lock the door.
Make sure
if you open the door, it is securely closed
when you are finished.
6-12

Tire Chains
NOTICE:
If your vehicle has P235/75R15, P235/70K15 or
31xlOSOR15LT/C size tires, don’t use tire chains.
They can. damage your vehicle because there’s
not enough clearance.
Use another type of traction device only
if its
manufacturer recommends it for use on your vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it’s contacting your vehicle, and don’t
spin your wheels.
NOTICE: (Continued)
NOTICE: (Continued)
If you do hd a traction device that will fit, install
them on the rear tires.
If you have other size tires, use tire chains only
where legal and only when you must. Use only
SAE Class “S” type chains that are the proper
size for your tires. Install them on the drive axle
tires (,four-wheel-drive vehicles can use chains on both axles) and tighten them as tightly
as possible
with the ends securely fastened. Drive slowly and
follow the chain manufacturer’s instructions.
If
you can hear the chains contacting your vehicle,
stop and retighten them.
If the contact continues,
slow down until it stops. Driving
too fast or
spinning the wheels with
chains on will damage
your vehicle.
6-48

Labels Certificatioflire
............................. 4-42
Fuse
....................................... 6-60
Safety Belt
.................................. 1-48
Service Parts Identification
..................... 6-58
Vehicle Identification Number
................... 6-58
Lamps
........................................ 2-45
Dome
...................................... 2-48
FrontMap
................................... 2-48
Front Reading
........................... 2-47, 2-51
Latches, Seatback
................................ 1-6
Leaving Your Vehicle
............................. 2-5
Leaving Your Vehicle with the Engine Running
....... 2-32
Air Bag Readiness
....................... 1-21, 2-73
Anti-Lock Brake System Warning
............ 2-76, 4-7
Brake System Warning
......................... 2-75
Charging System
............................. 2-73
Daytime Running Lamps Indicator
............... 2-80
Gate Ajar
................................... 2-81
Safety Belt Reminder
...................... 1-9, 2-72
Service Engine Soon
.......................... 2-77
Shift
.................................. 2-22, 2-80
Loading Your Vehicle
........................... 4-42
Locking Rear Axle
.............................. 2-23
LockoutSwitch
................................ 2-37
Interior
..................................... 2-47
OnReminder
................................ 2-4 6
Lighter
....................................... 2-61
Lights
CheckGages
................................ 2-80 Locks
......................................... 2-4
Door ........................................ 2-4
Key Lock Cylinder
Service ..................... 7-47
PowerDoor
.................................. 2-5
Rear Door Security
............................. 2-5
Steering Column Park Lock Check
............... 7-49
Loss of Control
................................ 4-13
Lubricants and Fluids
....................... 6-64, 7-52
Lubrication Service, Body
........................ 7-47
Luggagecarrier
................................ 2-59
Lumbar Controls
............................ 1-3, 1-4
Maintenance Record
........................... 7-55
Maintenance Schedule
............................ 7-1
Long Tripmighway
....................... 7-6, 7-30
Owner Checks and Services
..................... 7-46
Periodic Maintenance Inspections
................ 7-50
Recommended Fluids and Lubricants
............. 7-52
Scheduled Maintenance Services
.................. 7-4
Short TripKity
............................ 7-5, 7-7
Maintenance, Underbody
......................... 6-56
Maintenance When Trailer Towing
................. 4-54
Malfunction Indicator Lamp
...................... 2-77
Manual Front Seat
............................... 1-2
Manual Lumbar Support
.......................... 1-3
Manual Transmission Check
...................................... 7-47
Fluid
....................................... 6-18
Shifting
..................................... 2-21
Starting Your Engine
.......................... 2-16
9-6