CARCARETOOL VEHICLE GUIDE

GMC Sierra 15

GMC Sierra 15 — 2-door suv, 4.3 L ''GM LB4'' Turbocharged V-6. Explore engine specifications, fuel economy, dimensions, tire sizes, seating, maintenance and tire-pressure guidance.

GMC Sierra 15
Engine4.3 L ''GM LB4'' Turbocharged V-6
Transmission4-speed ''4L60'' automatic

About the GMC Sierra 15

GMC Sierra 15 is a 2-door SUV in the mid-size suv class. The available vehicle data lists 4.3 L ''GM LB4'' Turbocharged V-6 as an engine configuration, paired with 4-speed ''4L60'' automatic and a Front-engine, four-wheel-drive layout. Public source material describes the model in the context of its design, market positioning and vehicle history.

This GMC Sierra 15 guide focuses on the details drivers commonly want to know, including engine information for 4.3 L ''GM LB4'' Turbocharged V-6 and 4-speed ''4L60'' automatic transmission information. Exact specifications should be matched to the relevant model year and market.

GMC Sierra 15 specifications at a glance

Use this table for the model-level essentials. Exact figures may vary by year, trim, engine and market.

Make GMC
Model Sierra 15
Model years Not specified
Body style 2-door SUV
Vehicle class Mid-size SUV
Manufacturer GMC (General Motors)
Production 1992–19934697 produced
Market / country NL, US

Engine, transmission and performance

Engine information for the GMC Sierra 15 includes 4.3 L ''GM LB4'' Turbocharged V-6.. Transmission information includes 4-speed ''4L60'' automatic.. The listed drivetrain/layout is Front-engine, four-wheel-drive.

Engine 4.3 L ''GM LB4'' Turbocharged V-6
Transmission 4-speed ''4L60'' automatic
Drivetrain / layout Front-engine, four-wheel-drive

Dimensions, weight and practicality

Dimensions and capacity figures are presented as published source data when available.

Wheelbase 100.5 in (2553 mm)
Length 170.3 in (4326 mm)
Width 68.2 in (1732 mm)
Height 60.0 in (1524 mm)
Kerb / curb weight 3822 lb (1734 kg)

GMC Sierra 15 other specifications

Name GMC Typhoon
Image 92typhoon.jpg
TIRE PRESSURE

Recommended tire pressure for GMC Sierra 15

Check the vehicle placard or owner’s manual for the manufacturer’s cold inflation pressure. CarCareTool estimates are clearly labelled when an exact verified value is unavailable.

Normal load33 PSI front32 PSI rear
Fully loaded35 PSI front35 PSI rear
Load condition Front Rear Status
Normal 33 PSI 32 PSI Estimate
Fully loaded 35 PSI 35 PSI Estimate

Calculate how much air to add

Frequently asked questions about GMC Sierra 15

These FAQs are generated automatically for this specific vehicle from the specifications, features and ownership data available in CarCareTool. Questions are selected by relevance so the page focuses on details that can actually be answered for this model.

What engine does the GMC Sierra 15 have?
The available source data lists the GMC Sierra 15 engine as 4.3 L ''GM LB4'' Turbocharged V-6. Engine availability can differ by model year and market.
What tire pressure should I use for the GMC Sierra 15?
For the correct setting, use the cold inflation pressure on the vehicle placard or in the owner’s manual. When CarCareTool does not have a verified configuration-specific value, its starting estimate is 33 PSI front and 32 PSI rear for normal load. This is an estimate, not an OEM recommendation.
What is the best engine oil for the GMC Sierra 15?
There is no single best engine oil for every GMC Sierra 15 configuration. Use the viscosity grade and manufacturer approval specified for the exact engine in the owner’s manual.
What body style is the GMC Sierra 15?
The GMC Sierra 15 is classified as a 2-door SUV.
What are the dimensions of the GMC Sierra 15?
The available source data lists length 170.3 in (4326 mm), width 68.2 in (1732 mm), height 60.0 in (1524 mm), and wheelbase 100.5 in (2553 mm).
What transmission does the GMC Sierra 15 have?
The available source data lists 4-speed ''4L60'' automatic transmission options for the GMC Sierra 15.
Is the GMC Sierra 15 FWD, RWD or AWD?
The listed drivetrain/layout for the GMC Sierra 15 is Front-engine, four-wheel-drive.
Who makes the GMC Sierra 15?
The manufacturer listed for the GMC Sierra 15 is GMC (General Motors).
When was the GMC Sierra 15 produced?
The available source data describes production as 1992–19934697 produced.
How much does the GMC Sierra 15 weigh?
The available source data lists a kerb/curb weight of 3822 lb (1734 kg). Actual weight can vary with engine, trim and equipment.
What class of car is the GMC Sierra 15?
The GMC Sierra 15 is listed in the Mid-size SUV class.
Which markets or countries sold the GMC Sierra 15?
The CarCareTool catalog currently associates the GMC Sierra 15 with NL, US. Market availability and specifications can differ.
What cars are related to the GMC Sierra 15?
The available source data identifies related models as GMC SycloneGMC Jimmy/Chevrolet BlazerGMC Sonoma/Chevrolet S-10Oldsmobile Bravada. Relationships can vary by market and generation.
How often should I check the tire pressure on the GMC Sierra 15?
Check the tires regularly and before long trips, with the tires cold. Use the vehicle placard or owner’s manual as the source of the manufacturer’s recommended pressure.
Should I use the tire sidewall pressure for the GMC Sierra 15?
No. The maximum pressure printed on the tire sidewall is not automatically the vehicle’s recommended setting. Use the vehicle placard or owner’s manual for the correct cold inflation pressure.
Does the recommended tire pressure change when the GMC Sierra 15 is fully loaded?
It can. Many vehicles specify a different cold pressure for heavier loads. Check the vehicle placard or owner’s manual for the exact loading condition.
Can the GMC Sierra 15 have different tire pressures front and rear?
Yes. Some vehicles specify different front and rear pressures because axle loads and vehicle configurations differ. Follow the exact vehicle recommendation where available.
Why can mileage differ from the published figure for the GMC Sierra 15?
Published fuel economy is measured under a defined test method. Real-world mileage can vary with traffic, speed, temperature, tire pressure, payload, maintenance and driving style.

Data sources and verification are available in the page editor; exact specifications can vary by year, market, trim and engine.