Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Service and Maintenance 349
No. Service Interval
12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
Service
intervals
months or
kilometers
(miles)
whichever
occurs
first (1)
11 Evaporative Control System (2) (6) - - - - - - - - I - - - - - - -
12 Shields and Underhood Insulation (5) - I - I - I - I - I - I - I - I
13 Air Intake System (5) - - - I - - - I - - - I - - - I
14 Thermostatically Controlled Engine
Cooling Fan (5) - I - I - I - I - I - I - I - I or every 12 months
15 Automatic Transmission Fluid I I I I I I R I I I I I I R I I
16 Rotate Tires Every 12 000 km (7,500 mi)
17 Brake Lining and Pad for Wear I I I I I I I I I I I I I I I I
18 Brake drum and rotor for wear and
damage
- - - I - - - I - - - I - - - I or every 12 months
19 Brake Electric Vacuum Pump (4500
Series)
I I I I I I I I I I I I I I I I or every 12 months
20 Brake Fluid I I I R I I I R I I I R I I I R or every 24 months
21 Brake Line and Hoses - - - I - - - I - - - I - - - I or every 12 months
22 Hydraulic Unit Every 10 Years: R
23 Differential Gear Oil I I I R I I I R I I I R I I I R or every 24 months
24 Power Steering Fluid - - - - R - - - - R - - - - R - or every 24 months
25 Steering Wheel Free Play (3) Every 10 400 km (6,500 mi): I
26 Steering Gear Box Torque - - - T - - - T - - - T - - - T or every 12 months
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Service and Maintenance 353
If you have driven for a prolonged
period of time or in city traffic in hot
weather, wait until the fluid cools
down (Approx. 30 minutes) before
checking fluid level.
Single cab: Remove the dipstick
located at the rear right side of the
engine.
Crew cab: Remove the dipstick
located beneath the rear-of- engine
inspection panel. After unlatching
the A/T fluid inspection cover, the
dipstick will be visible.
Carefully touch the wet end of the
dipstick to find out if the fluid is cool,
warm or hot. Wipe it clean and push
it back in until the cap seats. Pull
out the dipstick and read the fluid
level.
If it felt cool, about room
temperature, the level should be in
the "C" range.
If it felt warm, about normal
operating temperature of 70 °C to
80 °C (158 °F to 176 °F), the level
should be in the "H" range.
16. ROTATE TIRES :To equalize
wear, rotate tires and adjust tire
pressures at every 12 000 km
(7,500 miles). See Tire Rotation
0 323.
17. BRAKE LINING AND PAD FOR
WEAR : Check drum brake linings
and disc brake pads for wear or
cracks at every 12 000 km
(7,500 miles). Check brakes
(including parking brake) more often
if conditions and habits result in
frequent braking.
Front disc brakes have built-in wear
indicators which are designed to
make a high pitched squeal or
cricket-like warning sound when the
brake pads are worn to the point
where new pads are needed. When the truck is in motion, the
sound may be constant or it may
come and go.
Pressing the brake pedal firmly may
cause the sound to stop.
Have the brake linings or the brake
pads replaced by your authorized
dealer as soon as possible after the
warning first becomes evident.
Failure to do so can result in
expensive damage to the brake
system or a serious accident.
18. BRAKE DRUM AND ROTOR
FOR WEAR AND DAMAGE :
Check brake drums (rear and
parking) and rotors for wear or
damage every 48 000 km
(30,000 miles) or 12 months
whichever occurs first.
19. BRAKE ELECTRIC VACUUM
PUMP (4500 Model) :
Inspect the
brake electric vacuum pump
operation every 12 000 km
(7,500 miles) or 12 months,
whichever occurs first.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
358 Service and Maintenance
No. Service Interval16 000 km/10,000 mi
24 000 km/15,000 mi
32 000 km/20,000 mi
48 000 km/30,000 mi
64 000 km/40,000 mi
72 000 km/45,000 mi
80 000 km/50,000 mi
96 000 km/60,000 mi
112 000 km/70,000 mi
120 000 km/75,000 mi
128 000 km/80,000 mi
144 000 km/90,000 mi
160 000 km/100,000 mi
168 000 km/105,000 mi
176 000 km/110,000 mi
Service intervals
months or
kilometers
(miles)
whichever
occurs first (1)
15 DPF (pressure difference
sensor 0 point
adjustment) - - - - - - - - - - - - A - -
or every
3,000 hours
16 DPF (pressure difference
sensor hose) Every 160 000 km (100,000 miles): I
Every 400 000 km (250,000 miles): R or every
3,000 hours: I
17 Fuel line system I - I I I - I I I - I I I - I or every
12 months
18 Brake lining and pad
for wear
I - I I I - I I I - I I I - I
19 Brake drum and rotor for
wear and damage - - I - I - - I - - I - I - I or every
12 months
20 Brake electric
vacuum pump
I - I I I - I I I - I I I - I or every
12 months
21 Brake fluid I - I R I - I R I - I R I - I or every
12 months: I
or every
12 months: R
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Service and Maintenance 365
14. DPF (Clean Filter) :Clean the
filter every 160 000 km
(100,000 miles) or 3,000 hours
whichever occurs first.
15. DPF (Pressure Difference
Sensor 0 Point Adjustment) :
Adjust the sensor every 160 000 km
(100,000 miles) or 3,000 hours
whichever occurs first.
16. DPF (Pressure Difference
Sensor Hose) : Inspect the sensor
hose every 160 000 km
(100,000 miles) or 3,000 hours
whichever occurs first. Replace the
sensor hose every 400 000 km
(250,000 miles).
17. Fuel Line System : Inspect the
fuel tank, cap and lines for damage
which could cause leakage every
16 000 km (10,000 miles). Inspect
fuel cap for correct sealing ability
and indications of physical damage.
Replace any damaged or
malfunctioning parts.
18. Brake Lining and Pad for
Wear : Check drum brake lining and
disc brake pad for wear or cracks
every 16 000 km (10,000 miles).
Check brakes (including parking brake) more often if operating
conditions or driving habits result in
frequent braking.
Front disc brakes have built-in wear
noise indicators which are designed
to make a high pitched squeal or
cricket-like warning sound when the
brake pads are worn to the point
where new pads are needed.
When the truck is in motion, the
sound may be constant or it may
come and go. Pressing the brake
pedal firmly may cause the sound
to stop.
Have the brake linings or the brake
pads replaced by your authorized
dealer as soon as possible after the
warning first becomes evident.
Failure to do so can result in
expensive damage to the brake
system or a serious accident.
19. Brake Drum and Rotor for
Wear and Damage :
Check brake
drums (rear and parking) and rotors
(front) for wear or damage every
32 000 km (20,000 miles) or
12 months whichever occurs first. 20. Brake Electric Vacuum Pump
(4500HD, 4500XD models) :
Inspect the brake electric vacuum
pump operation every 16 000 km
(10,000 miles) or 12 months,
whichever occurs first.
21. Brake Fluid :
Check the fluid in
the brake fluid reservoir every
16 000 km (10,000 miles). Replace
the fluid every 48 000 km
(30,000 miles).
22. Hydraulic Brake Booster Fluid
(5500HD, 5500XD models) :
Replace ATF Dexron VI fluid every
24 months or 30,000 miles
(48,000 km), whichever occurs first.
23. Brake Line and Hoses : Check
lines and hoses for proper hook-up,
binding, leaks, cracks, chafing, etc.
every 32 000 km (20,000 miles).
Any questionable parts should be
replaced or repaired at once. When
rubbing or wear is noted on lines or
hoses, the cause must be corrected
at once.
24. Parking Brake Cable : Check
the parking brake cable every
16 000 km (10,000 miles) or
12 months whichever occurs first.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
394 Technical Data
Rotor thickness[Standard Value] 40.0 mm (1.575 in) 42.0 mm (1.654 in)
[Usable Limit] 37.0 mm (1.457 in) 39.0 mm (1.535 in)
Pad thickness [Standard Value] 13.0 mm (0.512 in) 13.0 mm (0.512 in)
[Usable Limit] 1.0 mm (0.04 in) 1.0 mm (0.04 in)
Service Brakes
Brake pedal free play Refer to Brakes0275.
Clearance between the brake pedal and the brake pedal
bracket (applied to the brake pedal)
Parking Brake
Lever effective stroke (Under pull force of approx. 147 N (15 kg/33 lb) 6 - 8 notches
Electrical System
Model 3.0 Diesel Engine 6.0L Gasoline Engine 5.2 Diesel Engine
Battery type [BCI size] (RC-CCA) x No. of units 31T (160 - 750) x 2 31 (180 - 750) x 1 31 (160 - 750) x 2
*7
Starter
12 V - 2.0 kw12 V - 1.7 kw12 V - 3.0 kw
Alternator 12 V - 140 amp12 V - 145 amp12 V - 140 amp
Tightening Torque
Model 3.0 Diesel Engine 6.0L Gasoline Engine 5.2 Diesel Engine