The wait for Jeep and Ram’s next-generation range-extender vehicles has just become longer, and that is disappointing news for SUV and pickup enthusiasts. Stellantis is reportedly pushing back production of its upcoming Jeep Grand Wagoneer REEV and Ram 1500 REV, with delays stretching as far as nine months.
The company appears to be taking extra time to make sure the unusual range-extended electric powertrain is ready for a smooth launch. According to the latest supplier information, the Jeep model is now expected to begin production in November 2026, while the Ram 1500 REV is scheduled for production around mid-April 2027. (Autoblog)
Jeep And Ram Range-Extender Launch Delayed
The latest delay affects two important Stellantis products that are expected to use the company’s new range-extended electric vehicle technology. The Grand Wagoneer REEV was previously planned to enter production earlier, but the schedule has now moved to November.
The Ram 1500 REV, meanwhile, has experienced an even longer wait. Production is reportedly being pushed to April 2027, roughly nine months later than the earlier schedule. Stellantis is understood to have delayed the vehicles to help ensure the new propulsion system works properly when customers finally receive them. (Autoblog)
Why The Range-Extender Technology Matters
Unlike a conventional hybrid, an extended-range EV is primarily driven by electric motors. A gasoline engine works as a generator to provide electricity when required, rather than directly driving the wheels.
This approach attempts to combine the smooth and instant response of an EV with the freedom of a combustion engine for longer journeys. It can potentially reduce range anxiety while avoiding the need for an extremely large battery.
Jeep Grand Wagoneer REEV Promises Serious Performance
The upcoming Jeep Grand Wagoneer REEV is expected to be one of the most powerful versions of the luxury SUV. Earlier information indicated that its range-extender system could produce approximately 647 hp and 620 lb-ft of torque.
Jeep has also targeted a 0–60 mph time of around 5 seconds and a potential total driving range of approximately 500 miles. The vehicle is expected to use a 92-kWh battery and a 400-volt electrical architecture. (MotorTrend)
A Familiar Engine With A Different Job
The range-extender system uses a modified version of Stellantis’ 3.6-litre Pentastar V6. Instead of mechanically powering the wheels, the engine works with an onboard generator to supply electrical energy to the vehicle’s electric drive system.
This setup could give the Grand Wagoneer the instant response expected from an EV while retaining the long-distance flexibility of a gasoline-powered vehicle.
Ram 1500 REV Takes A Similar Approach
The Ram 1500 REV will use a closely related range-extender system. Earlier plans identified a 92-kWh battery pack, electric drive modules and a gasoline engine-generator combination.
The system is designed to provide strong electric performance while retaining the long-distance usability that pickup buyers expect. Earlier reports have indicated an estimated range of more than 600 miles under certain conditions, although final production specifications and ratings should be confirmed closer to launch. (Reddit)
Ram’s Long Road To Production
The Ram model has already gone through several changes. The vehicle was initially associated with the Ramcharger name, while the all-electric Ram 1500 REV was expected to arrive separately. Stellantis later changed its product strategy, with the range-extender version becoming the main REV direction. (MotorTrend)
2026–2027 Jeep And Ram Range-Extender Specifications
| Specification | Jeep Grand Wagoneer REEV | Ram 1500 REV |
|---|---|---|
| Powertrain | Range-Extended EV | Range-Extended EV |
| Battery | 92 kWh | 92 kWh |
| Electrical Architecture | 400V | 400V |
| Engine | 3.6L Pentastar V6 | 3.6L Pentastar-based generator |
| Drive | Electric AWD | Electric AWD |
| Expected Jeep Power | Up to 647 hp | — |
| Expected Jeep Torque | 620 lb-ft | — |
| Jeep 0–60 mph | Around 5 seconds | — |
| Jeep Expected Range | Around 500 miles | 600+ miles previously indicated |
| Updated Production | November 2026 | Mid-April 2027 |
Is The Delay A Bad Thing?
For buyers who have been waiting for these vehicles, another delay is certainly frustrating. However, Stellantis appears to be prioritising reliability before putting its new range-extender system into customers’ hands.
The technology is relatively new for the company, and getting the battery, generator, electric motors and software to work together smoothly is extremely important. A delayed launch may therefore be better than rushing an unfinished system into production.
The Competition Is Moving Quickly
The biggest challenge for Stellantis is timing. Extended-range EV technology is gaining attention, particularly as manufacturers look for alternatives between conventional hybrids and fully electric vehicles. Other automakers are also exploring similar solutions, meaning Jeep and Ram cannot afford endless delays. (Cars.com)
Jeep And Ram’s Electrified Future
The delayed Grand Wagoneer REEV and Ram 1500 REV remain important products for Stellantis. They promise a fascinating combination of electric driving, strong performance and long-distance capability.
For now, customers will have to wait longer. If Stellantis uses the extra time to make the range-extender system dependable and refined, the delay could ultimately prove worthwhile.
Disclaimer
The specifications, performance figures, production dates and range estimates mentioned in this article are based on information and reports available at the time of writing. Final production specifications, pricing, availability and official EPA-rated figures may differ. Stellantis may change launch schedules or vehicle specifications without prior notice. Readers should check official Jeep and Ram announcements for the latest information before making purchasing decisions. (Autoblog)