About the GMC Sierra Hybrid
GM launched a hybrid version of the Silverado & Sierra in 2004, becoming the first ever GM hybrid passenger vehicle.
GMC Sierra Hybrid Generations
GMT800 / Sierra PHT
Besides the typical 12V automotive battery the PHT uses three additional 14V valve regulated lead-acid (VRLA) batteries mounted under the rear seat to store and provide power. The truck uses a 5.3L Vortec 5300 V8 for gasoline engine power.
GMT900 / Silverado & Sierra Hybrid
Available in either two- or four-wheel-drive, the Sierra 1500 Hybrid is powered by a 6.0-liter V8. It’s joined by two 60-kilowatt electric motors supplied by a nickel–metal hydride (NiMH) battery pack under the rear seat. On its own, the V8 is rated at 332 horsepower and 367 pound-feet of torque. GM engineers say that combined output with the electric motors is 379 hp. The unique transmission houses the electric motors along with three different planetary gear sets and four traditional clutches.
The 2009-2014 models were sold only as quad cab models and come in two trim packages, Value and Premium.
K2XX / Silverado Hybrid
Resurfacing in 2016, the Silverado Hybrid’s 5.3L V8 engine came with an 8-speed automatic transmission and has the same horsepower and torque as the 5.3 in the standard Silverado.
The 2016 – 2018 GMC Sierra SLT e-Assist models were sold only in California.
GMC Sierra Hybrid Specs
| 2005-2007 | 2009-2014 | 2016-2018 | |
| Horsepower (Total) | 310 hp at 5200 rpm | 379 hp | 355 hp |
| Torque | lb-ft Nm | lb-ft Nm | 383 lb-ft |
| Battery | 42V Lead-Acid | 300V NiMH | Lithium Ion |
| MPG (city / hwy) | 17 / 19 | 21 / 22 (2WD) 20/20 (4WD) | 18 / 24 (2WD) |
| Towing Capacity | 6100 lbs | 6100 lbs (2WD) 5900 lbs (4WD) | 9400 lbs |
| Payload Capacity | 1,400 lbs | 2,600 lbs | – |
| Total Range | – | 500 miles | – |
GMC Sierra Hybrid Batteries
Drive Battery | 12V Battery | Key Fob Battery
Drive Battery / Traction Battery
The 2008-2013 GMC Sierra Hybrid Battery has 40 modules constituting of 6 cells per module adding to 240 cells.
Drive Battery Specs
| 2005-2007 | 2009-2014 | 2016-2018 | |
| Battery Type | Lead-Acid | Nickel Metal Hydride (NiMH) | Lithium Ion |
| Battery Voltage | 42V | 300V | – |
| Battery Capacity | – | 6500 mAh | 15 kWh |
| Battery Cells | – | 40 | 24 |
| Battery Warranty | 8 years 100,000 miles | 5 year 100,000 miles | – |
Drive Battery FAQs
How much do GMC Sierra Hybrid replacement drive batteries cost?
The price of a GMC Sierra Hybrid replacement battery, as of 2022, is anywhere from $2549.00 to $3450.00, not including labor, shipping, and taxes.
Where do I purchase a GMC Sierra Hybrid replacement drive battery?
Best Hybrid Batteries – Recommended by one of our site visitors, Best Hybrid Batteries is based out of Shorewood, IL and has a mission to build “Only The Best” hybrid battery packs for their customers each time.
BestHybridBatteries.com: GMC Sierra Hybrid (2009-2014)
EnnoCar – All Ennocar Hybrid Batteries are environmentally friendly and contain no cadmium, mercury or lead. EnnoCar’s batteries typically come with a 2 year or 100,000 km warranty.
EnnoCar.com: GMC Sierra Hybrid (2009-2014)
Greentec Auto – Established in 2012, with 3 brothers working at their father’s auto repair shop, Greentec Auto’s mission is to create effective and sustainable solutions for you and your vehicle. “Nothing ends up in a landfill.” With over 20 service centers across the United States, there is sure to be a location near you.
GreentecAuto.com: GMC Sierra Hybrid (2007-2013)
HybridDriveBatteries.com – Can provide you with original GMC Sierra hybrid battery cells which have been re-manufactured. Offering batteries for years 2008 – 2013 GMC Sierra Hybrid models.
HybridDriveBatteries.com: GMC Sierra Hybrid Battery (2008-2013)
Where is the drive battery located in the GMC Sierra Hybrid?
The NiMH drive battery in the 2009-2014 GMC Sierra Hybrid is located beneath the rear seat.
The drive battery for the 2016-2018 GMC Sierra Hybrid is located under the center console.
How do I charge the drive battery in the GMC Sierra Hybrid?
Simply turn it on and drive it around. There is no plug-in on the GMC Sierra Hybrid and all models feature regenerative braking for additional charging.
12V/14V Auxiliary Battery
GMC Sierra Hybrid 12V/14V Battery Location
The 2005-2007 GMC Sierra Hybrid’s 14V battery is located under the hood of the vehicle, behind the driver’s side headlight. This is a special Hybrid battery and can only be replaced at a GM dealership.
GMC Sierra Hybrid 12V/14V Battery Size
The 2009-2014 GMC Sierra Hybrid has a 12v Group 48 battery located under the hood.
| Manufacturer | Part # | Where to Purchase? |
| ACDelco | BCI Group 48 | Amazon |
| Duracell | BCI Group 48 | BatteriesPlus |
GMC Sierra Hybrid 12V Battery Terminal Maintenance
Maintaining your GMC Sierra Hybrid 12V battery terminals is essential to ensuring a positive electrical contact. We recommend cleaning terminals and using a terminal protectant spray to prevent corrosion on your battery terminals.
CRC Battery Cleaner w/ Acid Detector will clean your battery terminals and surface, neutralizing acids and detecting leaks.
CRC Battery Terminal Protector Spray is designed to protect battery terminals from corrosion, a leading cause of hard starting and battery failure.
GMC Sierra Hybrid 12V Battery Testing, Maintenance and Repair
Battery testers are an inexpensive way to save yourself time in repairing your GMC Sierra Hybrid. A healthy 12V battery will read between 12.6 and 12.8 volts when tested. Anything lower, and you may want to consider replacing your batteries or checking the battery fluid levels.
12V Battery Analyzers / Testers on Amazon
How to charge the GMC Sierra Hybrid 12V battery
You can charge the GMC Sierra Hybrid with a normal 12V charger. If you remove the under-hood fuse/relay box cover you’ll notice posts that are tied together electrically, to which you can clamp the positive (+) cable. You can then ground to any convenient place nearby the box.
GMC Sierra Hybrid 12V Battery Chargers
| Battery Charger | Where to Purchase? |
| NOCO GENIUS10 12V & 6V 10A Smart Car Battery Charger | Amazon |
| Battery Tender Junior 12V 750 mA Charger and Maintainer | Amazon |
| OptiMATE Lithium 4s 0.8A, TM-471 Battery Saving Charger & Maintainer | Amazon |
Something to keep in mind: Traditional jumper cables are typically designed to handle the high amperage load of a starter motor. However, in the case of a hybrid vehicle, we are only attempting to power the 12-volt bus and therefore do not require such heavy-duty cables. It is recommended to use cables with a gauge size no larger than 14 – small motorcycle battery clamps should be sufficient.
Shop 14 Gauge Jumper Wires on Amazon
Key Fob Battery
The 2007-2021 GMC Sierra key fob battery uses a CR2032 3V lithium battery.
Find CR2032 3V Lithium Batteries on Amazon
GMC Sierra Hybrid Drivetrain
Electric Motor
The 2005-2007 GMC Sierra Hybrid features a compact electric motor sandwiched between the engine and transmission. This electric motor also provides AC auxiliary power; up to 20A of 120V (2400W).
The 2009-2014 GMC Sierra Hybrid features twin 60kW electric motors that send power to the rear wheels. This enables the truck to utilize electric motors only up to 30 mph.
The 2016-2018 GMC Sierra eAssist features an electric motor that provides 15 kW of peak regenerative capability of up to 13 hp and 44 lb-ft of torque under certain driving conditions. Exclusive technology to the eAssist system includes Stop/Start capability, electric power boost while driving in four-cylinder mode, and regenerative braking to recharge the battery pack.
Gasoline Engine
The gasoline engine in the 2005-2007 GMC Sierra Hybrid is a Vortec 5300 5.3L V8. This engine features auto start/stop after being warmed up, except in tow-haul mode, while the battery is low, or while the transfer case is in 4LO.
The gasoline engine in the 2009+ GMC Sierra Hybrid is a Vortec 6.0L V-8 with overhead valves (2 per cylinder) and variable valve timing. This engine features cylinder deactivation
| 2005-2007 | 2009-2014 | 2016-2018 | |
| Gasoline Engine Size | 5.3L V8 | 6.0L V8 | 5.3L EcoTec3 V8 |
| Gasoline Engine Power | 320 hp | 332 hp @ 5100 RPM | 355 hp @ 5600 RPM |
| Gasoline Engine Torque | 340 lb-ft | 367 lb-ft | – |
FAQs
What type and grade of gasoline does the GMC Sierra Hybrid use?
All years of the GMC Sierra Hybrid use regular unleaded gasoline, 89 octane or higher.
What type of spark plugs does the GMC Sierra Hybrid use?
All years of GMC Sierra Hybrid call for iridium core spark plugs and low resistance spark plug wires. This website highly recommends NGK.
NGK Iridium Spark Plug for GMC Sierra on Amazon
Transmission
The 2009-2014 GMC Sierra Hybrid uses a two-mode continuous electric ratio hybrid transmission with four fixed gears transmission.
The 2016-2018 GMC Sierra Hybrid eAssist is mated to an eight-speed automatic transmission that can be found in the standard Sierra.
Join a Silverado Community
SilveradoSierra.com / Silverado EV – A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
ElectricVehicleForums.com / GMC – A forum community for GM Hybrid Trucks, Cadillac Escalade Hybrid, Chevrolet Tahoe Hybrid & GMC Yukon Hybrid
Reddit.com/r/GMCSierra/ – Share your pics, experiences and love of GMC and their Sierra truck line.
GMC Sierra Hybrid Reviews
For more information, check out GMC Sierra Hybrid on Wikipedia.