technical data CHEVROLET LOW CAB FORWARD 2018 Owner's Manual

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Keys, Doors, and Windows . . . . . 25
Seats and Restraints . . . . . . . . . . . 38
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 54
Instruments and Controls . . . . . . . 64
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 92
Infotainment System . . . . . . . . . . . . 97
Climate Controls . . . . . . . . . . . . . . 115
Driving and Operating . . . . . . . . . 121
Vehicle Care . . . . . . . . . . . . . . . . . . 217
Service and Maintenance . . . . . 303
Technical Data . . . . . . . . . . . . . . . . 330
Customer Information . . . . . . . . . 342
Reporting Safety Defects . . . . . . 349
Index . . . . . . . . . . . . . . . . . . . . 351

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
330 Technical Data
Technical Data
Vehicle Identification
Vehicle IdentificationNumber (VIN) . . . . . . . . . . . . . . . 330
Vehicle Data
Capacities andSpecifications . . . . . . . . . . . . . . . 335
Engine Drive Belt Routing . . . . 341
Vehicle Identification
Vehicle Identification
Number (VIN)
The VIN and engine number are
necessary for registering your
vehicle. They are also necessary
when your vehicle undergoes official
inspections. Provide your dealer
with these numbers when you are
having the vehicle repaired or when
ordering replacement parts. The
Dealer will be able to do the
requested jobs more competently
and quickly.
VIN and Weight Rating Plate

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Technical Data 331
The "Vehicle Certification and
Greenhouse Gas (GHG) Emissions
Plate" shows the manufacturer's
gross vehicle weight rating (GVWR),
the front and rear gross axle weightratings (GAWRs), as well as the VIN
and emissions information for your
vehicle.
This plate is located on the left side
rear pillar panel below the striker
(single cab) or on the left center
pillar panel beside the shoulder seat
belt anchor (crew cab).
The VIN is a legal identifier of your
vehicle. It not only appears on the
VIN plate; but also on the vehicle
certificates of title and registration.
The VIN specifically identifies a
vehicle by code.
See
“Overloading” underInformation
on Loading the Vehicle 058.
The VIN contains multiple pieces of
information including the vehicle
and engine model codes as shown
below.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
332 Technical Data
Typical VIN5 4 D B D J 1 B X H S 1 2 3 4 5 6
VIN POS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1–3: World Make/Manufacturer Identifier (WMI)
1: Region of Build J: Japan
5: United States Valid Combinations
JAL
54D
2: Manufacturer A: Isuzu Motors Ltd.
4: Spartan Motors Chassis Inc.
3: Vehicle Brand/Type L: Incomplete Vehicle - Medium & Heavy Duty
D: Incomplete Vehicle
4: GVWR/Brake System/Body Style GVW (Lbs) / Brake System Body Style
03 43
Class 3: 10,001-14,000 Hyd. BB
Class 4: 14,001-16,000 Hyd. CC
Class 5: 16,001-19,500 Hyd. EE

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Technical Data 333
5: Make/SeriesD: GM Chevrolet 3500 / 3500HD / 4500 / 4500HD / 4500XD
E: GM Chevrolet 5500HD / 5500XD
6: Line/Cab Type J: Non-Tilt Cab, BBC = 110 in.
W: Tilt Cab, BBC = 71 in.
7: Chassis Type 1: 4x2, 2 Axles, 1 Driving
8: Engine Type B: L96 –Engine Gas, 8 Cyl, 6.0L, SFI, E85 Max, Iron, GM
C: LC8 –Engine LPG/CNG, 8 Cyl, V8, 6.0L, SFI, Gen 1, GMNA
6: I1B –Engine Diesel, 4 Cyl, 5.2L, 4HK1TC 215HP
7: IZ3 –Engine Diesel, 4 Cyl, 3.0L, 4JJ1-TC 150HP
9: Check Digit
0–9, X - Calculated by Manufacturer
10: Model Year J: 2018
11: Plant Location S: Charlotte, Michigan
7: Fujisawa, Japan

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
334 Technical Data
12: Model CombinationF: 3500HD/4JJ1 Diesel/13,000lbs
K: 4500XD/4HK1 Diesel/16,000lbs
0: 4500HD/4HK1 Diesel/14,500lbs
E: GM Chevrolet 5500HD/5500XD
3: 5500XD/4HK1 Diesel/19,500lbs
8: 3500 & 4500/Gas
9: 5500HD/4HK1 Diesel/17,950lbs
13–17: Sequence Number Positions 13 through 17 represent the number sequentially assigned by the manufacturer in the production
process.
Interpretation of the VIN may differ
depending on the vehicle. For
further details, please ask your
dealer.
Engine NumberThe engine number is located on
the left-side rear part of the engine
block and the right-side front part of
the oil pan.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Technical Data 335
Vehicle Data
Capacities and Specifications
These specifications are given here for information only. Before using them, see the Cautions and other instructions
throughout this manual–the index may help you locate such items. For more information, see the Service Manual
covering the chassis or body part in question. Your dealer may also be able to help.
Engine Specifications
Description Water-cooled, overhead camshaft, direct injection engine with a charge air cooled
turbocharger.
Manufacturer Isuzu
Model 5.2L Diesel Engine
Engine type Inline 4, Four Cycle
Induction Turbocharged W/Charge Air Cooler
Bore 115 mm
Stroke 125 mm
Displacement 5.193 L (317 CID)
Full load RPM 2,400 r/min
Compression ratio 16.5 to 1
Firing order 1-3-4-2
Fuel injection timing
(static) degree 0°

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
336 Technical Data
Valve clearance (Between
cam and roller)Both intake and exhaust valves:
0.6 mm (0.024 in) in cold engine
Idling speed 500 - 600 r/min
Fan belt tension New belt: 5 - 7 mm (0.20 - 0.28 in)/184 - 206 Hz
When used: 8 - 9 mm (0.31 - 0.35 in)/158 - 170 Hz
Oil filter Cartridge
Engine oil capacity When changing oil and filter:
11.0 L (11.6 qt)
*1
Engine coolant capacity 19.6 L (20.7 qt)*2
Preheating system Glow plugs
Transmission Specifications
Model A465 Model Six-speed automatic transmission (overdrive gear for 5th and 6th), lock-up clutch for
2nd to 6th
Gear ratio 1st 3.742 to 1 2nd 2.003 to 13rd 1.343 to 1
4th 1.000 to 1
5th 0.773 to 1
6th 0.634 to 1
Reverse 3.539 to 1
Transmission oil capacity 13.1 L (27.7 pt)

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Technical Data 337
Weights
Axle weight rating : Front 4500HD: 2431 kg (5,360 lb)4500XD: 3007 kg (6,630 lb)
5500HD: 3098 kg (6,830 lb) 5500XD: 3300 kg (7,275 lb)
Engine Oil Service
Engine oil capacity When changing oil only: 9.5 L (10.0 qt)
*1
When changing oil and filter: 11.0 L (11.6 qt)*1
Engine Cooling System Service
Capacity 19.6 L (20.7 qt)
Engine oil Thermostat:
Starts to open 82-85 °C (180-185 °F)
Radiator pressure 108 kPa (16 psi)
Transmission Service
Transmission oil capacity 13.1 L (27.7 qt)
*3
Rear Axle Service
Differential gear oil
capacity 4500HD/4500XD:
9.0 L (19.0 qt)
*4
5500HD/5500XD:10.0 L (21.1 qt)*4
Limited slip differential
lubricant additive 4500HD/4500XD:
0.5 L (1.06 qt)*5
5500HD/5500XD:0.6 L (1.27 qt)*5

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
338 Technical Data
Fuel
Fuel tank capacity
*6113 L (30.0 qt/24.9 gal)
125 L (33.0 qt/27.5 gal)
Diesel Exhaust Fluid (DEF)
DEF tank capacity 16.0 L (4.23 gal)
Steering
Steering wheel free play 10 - 50 mm (0.39 - 1.97 in)
Power steering fluid capacity 1.5 L (1.6 qt)
Wheel
Wheel alignment Toe-in -2 to 2 mm (-0.08 to 0.08 in)
Camber 0°15’
Caster LH 2°50’, RH 3°40’
King pin 12°
Wheel hub bearing grease capacity 0.11 kg (0.24 lb)
Wheel stud nut torque : Front and rear 500 Y(50 kgf m/363 lb ft)
Disc Brakes
Model 4500HD 4500XD/5500HD/5500XD
Brake size (Diameter x
Thickness) 293 x 40 mm (11.54 x 1.57 in) 363 x 42 mm (14.29 x 1.65 in)