Owners of 2023 Jeep Wranglers describe sudden, dangerous loss of engine power while driving at highway or city speeds—stalls at 40–70 mph with loss of all propulsion, coasting to a stop. Some report the engine completely dies and won't restart; others restart after shutdown and temporarily regain function. These events occur unpredictably, from 1,000 to 22,000 miles, sometimes multiple times. One 4Xe owner reports at least 10 instances of severe acceleration lag in five months, where the gas pedal unresponsiveness lasts 10–25 seconds and requires flooring to recover.
Dashboard warnings vary: some see flashing check engine lights, others see "Engine Overheated – Pull Over" or messages about battery/plug-in performance. One owner reported the D gear flashing. Dealerships struggle to diagnose—many find no stored fault codes, cannot replicate the issue, or don't investigate because the related battery recall 24V720000/95B is supposedly blocking action. One case involved engine replacement under warranty, but the failure recurred. A separate overheating issue (Campaign 25V741000) had parts shortages that prevented recall completion. Several owners have been told the dealership has "never seen this before" or that manufacturer cannot provide further assistance.
Failure modes owners describe
Loss of motive power / engine stall while driving
Engine loses power, shuts off, or becomes unresponsive while vehicle is in motion at highway or city speeds. Vehicle coasts and operator must pull to shoulder. Restart sometimes restores function; other times engine fails to restart.
When: Between 1,000 and 22,000 miles; mostly occurring within first 5-12 months of ownership
Symptoms owners cite: Engine suddenly loses power or dies at steady speed (25–70 mph); Loss of acceleration/responsiveness when stepping on gas pedal; Vehicle coasts with no propulsion; Dashboard message 'Engine Overheated – Pull Over' or 'safely put car in Park'; Check engine light flashing or steady (sometimes absent); Service battery warning light illuminated; D gear indicator flashing; Engine fails to restart or requires restart cycle to restore power
Repairs/costs cited: One 2023 4Xe replicated the issue but dealer found 'no code' and could not fix. Multiple dealerships report inability to diagnose or replicate. One vehicle had engine replaced under warranty at 22,357 miles but failure recurred; recall parts unavailable.
Recalls/TSBs owners mention: NHTSA Campaign 24V720000/95B (battery recall) cited by owners and dealers as blocking investigation; Campaign 25V741000 (Electrical System) issued but parts unavailable to complete repair. Manufacturers contacted but no further assistance provided in several cases.
Acceleration lag / delayed power response
Engine responds slowly or not at all when operator presses accelerator, causing dangerous loss of speed. Takes 10–25 seconds of flooring pedal to restore power. Occurs intermittently at various speeds.
When: Within first 5 months of ownership; has occurred at least 10 times in one 2023 4Xe with 5,000 miles
Symptoms owners cite: Gas pedal fails to respond or output power at 30–65 mph; Dramatic slowdown in speed; Check engine light flashing on and off or staying steady; Power finally engages after 10–25 seconds of flooring pedal
Repairs/costs cited: One dealership (36-day investigation) replicated the issue but received 'no code' and could not repair.
Recalls/TSBs owners mention: Dealers claim issue is related to recall 24V720000/95B and refuse to investigate separately.
Engine overheating with temperature warning
Engine temperature rises while driving at moderate city speed, triggering overheat warning on dashboard. Operator pulls over safely. In at least one case, engine was replaced under warranty but failure recurred.
When: At 22,357 miles in one reported instance
Symptoms owners cite: Temperature gauge warning light displayed; Dashboard message 'Engine Overheated – Pull Over'; Engine overheating while driving 25–50 mph
Repairs/costs cited: Engine replaced under warranty in one case; failure recurred post-repair.
Recalls/TSBs owners mention: NHTSA Campaign 25V741000 (Electrical System) applicable; recall repair could not be completed due to parts unavailability.
Abnormal engine odor (diagnostic unclear)
Owner detected abnormal odor upon entering vehicle at 2 miles. No warning light illuminated. Two dealers visited but neither provided diagnosis or repair.
When: At 2 miles (new vehicle)
Symptoms owners cite: Abnormal odor inside vehicle
Repairs/costs cited: No diagnosis provided by either of two dealerships visited.
Synthesized from 18 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.