Transmission Auxiliary Oil Pump Failure Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0B0D-00 - Electric/Auxiliary Transmission Fluid Pump Motor Control Module. Customers may also comment on the following: ● Vehicle is in limp mode This bulletin involves replacing the transmission oil pump.
full bulletin at NHTSA ↗2022 Jeep Grand Cherokee powertrain problems
moderate 50 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
50
Recalls
0
Avg fix
$2,500
1crash
What stands out
Owners have filed 50 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0300 - Multiple Cylinder Misfire - In Active or Stored status set during cold start catalyst heating. ● P0301 - Cylinder 1 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0302 - Cylinder 2 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0303 - Cylinder 3 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0304 - Cylinder 4 Misfire - In Active or Stored status set during cold
full bulletin at NHTSA ↗Power Liftgate Inoperative.
full bulletin at NHTSA ↗The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
full bulletin at NHTSA ↗Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV transmissions that have fault codes P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2022 Grand Cherokee powertrain cluster centers on sudden, unpredictable loss of propulsion at highway speeds with zero warning. Owners describe the engine shutting off completely, followed by a "Service Hybrid Electrical System" warning or red wrench icon. Power returns only after restart. This has occurred dozens of times across the complaint set, including after the manufacturer's 95B recall (24V-720 software update), which appears to have introduced or failed to prevent the issue.
Owners also report a diagnostic code B273C-00 (Digital Crash Input) linked to hybrid control failure. Dealerships consistently tell customers they cannot reproduce the problem or that no fix exists. One owner was explicitly advised not to drive the vehicle; another's dealer has multiple vehicles parked with the same failure, awaiting direction from Chrysler.
Secondary failures cluster around transmission behavior: delayed throttle response (3–5 second hesitation followed by sudden acceleration), inability to shift gears, engine over-revving, and violent shuddering. A few owners experienced unintended acceleration or vehicle shifting itself to park while moving. One owner's paddle shifters were accidentally engaged in heavy traffic, disabling automatic transmission mode and causing power loss.
Electrical and hybrid system failures are pervasive. Multiple owners report the battery failing to charge, "Fuel & Oil Refresh Mode" disabling electric operation, and the vehicle reverting to gas-only mode. Early-life failures appeared at 179 miles on one vehicle.
Less common but severe: engine wiring harness burn-out, valve train noise on a three-day-old vehicle (still undiagnosed after months in the shop), and transfer case failure with no warning. One owner experienced complete electrical shutdown with loss of power steering and brakes in traffic; the dealership called it a "digital crash input code failure" and said there was no fix.
Owners emphasize the safety hazard of power loss at highway speeds surrounded by traffic, with several expressing they no longer feel safe driving the vehicle.
Same Jeep Grand Cherokee powertrain reports on nearby years: 2019 · 2020 · 2021 · 2023 · 2024
Failure modes owners describe
Engine shutdown/loss of motive power while driving
Vehicle loses all power and shuts off during normal operation without warning, often at highway speeds. Owners report sudden loss of propulsion requiring emergency stops or coasting to shoulder. Some incidents occur immediately after manufacturer recall repairs (95B/24V-720). Restart typically restores function temporarily.
When: At various speeds, frequently highway (55-70 mph); some incidents minutes to days after recall 95B/24V-720 service; recurrence pattern unpredictable
Symptoms owners cite: Complete loss of engine power/propulsion; Red wrench icon with 'Service Hybrid Electrical System' warning; 'Push brake to start' message on dashboard; Automatic engagement of electronic parking brake; Loss of power steering during shutdown; Dashboard warning lights including red wrench and turtle icons; Vehicle requires restart to restore power
Codes mentioned: B273C-00 (Digital Crash Input), EV system hybrid control fault
Repairs/costs cited: Dealership service unable to reproduce issue or identify root cause in most cases. Some owners report dealership states 'no fix' available. Recall 95B/24V-720 software update performed on many affected vehicles did not resolve the issue and may have introduced or exacerbated it. One owner reported engine wiring harness burned and failed.
Recalls/TSBs owners mention: Recall 23V-412 and 95B/24V-720 (24V-720) issued; 22V-865000 recall issued for Wrangler 4Xe but not applied to Grand Cherokee 4Xe despite identical powertrain. FCA engineers documented awareness of defect but owners report no validated permanent fix exists. Dealers advised customers vehicle is unsafe to drive. STAR case created but unresolved.
Loss of acceleration/delayed throttle response
Vehicle fails to respond to accelerator input or responds with significant delay (3-5+ seconds), sometimes followed by sudden over-acceleration. Occurs at various speeds including traffic intersections and highway merges. Hazard is heightened when oncoming traffic is present.
When: Intermittent, at various speeds from traffic light starts to highway driving; unpredictable pattern
Symptoms owners cite: No response when accelerator pedal depressed; Extended delay (3-5 seconds or more) before engine engages; Sudden unintended acceleration following throttle delay; Vehicle rolls slowly or does not move despite pedal input; Engine over-revs when pedal finally engages; No warning lights in most instances
Codes mentioned: P0734 (transmission fault code reported in one case)
Repairs/costs cited: Dealership unable to reproduce issue in most cases. Software updates performed but issue persists. One owner reported dealership cleared codes and returned vehicle. No permanent repair identified.
Paddle shifter unintended engagement causing automatic transmission disengagement
Drivers accidentally contact paddle shifters while driving in automatic mode, causing transmission to disengage automatic control and switch to manual paddle operation. If driver is unaware, vehicle can lose motive power when selected gear becomes unsuitable for current speed/RPM.
When: During normal driving in automatic mode when paddle shifters are contacted
Symptoms owners cite: Unintended manual transmission engagement; Loss of motive power when gear becomes unsuitable for vehicle speed; Vehicle stops responding to accelerator; Driver must pull to shoulder to recover
Repairs/costs cited: Recovery method: pull right paddle forward to return to automatic mode. Information not documented in owner's manual or Jeep website. No way to disable paddles to prevent recurrence.
Recalls/TSBs owners mention: Pending safety recall NHTSA 23V-412 addresses similar loss of motive power but from different root cause (transmission/hybrid control module communication loss).
Transmission shift failure/inability to shift gears
Transmission fails to shift into higher gears or shifts with grinding/crunching noise and violent shudder. Engine over-revs (exceeds redline RPM) when vehicle attempts to maintain highway speed in lower gear. Occurs early in vehicle's life (as low as 179 miles on one vehicle).
When: Early in vehicle ownership (within first 10-331 miles reported); during acceleration to highway speeds
Symptoms owners cite: Transmission fails to shift into higher gears; Engine over-revs/exceeds maximum redline RPM; Loud grinding/crunching transmission noise; Violent shudder through vehicle during shift; Vehicle stuck in lower gear attempting to maintain speed; 'Limp-home' mode (25 mph max) on some vehicles
Codes mentioned: P0734 (transmission code in one case)
Repairs/costs cited: One vehicle at dealership since January 2023 without diagnosis. Dealership acknowledged issue as 'weird' after test drive. Transmission replacement attempted on at least one vehicle without resolving shifting issues. Transfer case also replaced on one vehicle without resolution.
Sudden unintended acceleration (SUA)
Vehicle unexpectedly accelerates to high RPM and launches forward without driver input or against driver's braking efforts. One documented incident occurred in driveway when owner had foot on brake before shifting to park.
When: Reported in driveway scenario; also reported on roads with oncoming traffic
Symptoms owners cite: Vehicle revs to high RPM without accelerator input; Vehicle launches forward suddenly; Brake pedal becomes hard to press or goes to floor with loss of braking; Uncontrolled acceleration despite braking attempts
Repairs/costs cited: One vehicle declared total loss after SUA caused multi-property damage and injury-risk collision.
Hybrid electric system failure/loss of hybrid functionality
Vehicle loses electric propulsion capability, fails to charge battery, or enters reduced-function states. 'Fuel & Oil Refresh Mode' (FORM) disables electric mode and electric assist. 'Service Hybrid System' warnings appear intermittently. Battery reported unable to charge 50% of the time in some vehicles. Vehicle confined to internal combustion engine (ICE) operation only, losing advertised hybrid efficiency and performance.
When: New off-showroom vehicles within first 10 days (179 miles); intermittently during normal operation; persists after recall attempts
Symptoms owners cite: 'Electric Mode Temporarily Unavailable - Fuel & Oil Refresh in Progress' message; 'Service Hybrid Electrical System' warning light flashing; Failure to charge battery; Battery drains rapidly; Vehicle unable to operate in hybrid/electric modes; Loss of advertised electric assist during acceleration
Codes mentioned: B273C-00 (Digital Crash Input/hybrid control fault)
Repairs/costs cited: One vehicle with FORM message cleared after refuel at 331 miles. Multiple dealership visits with code clearing but no permanent resolution. Owners report dealership states 'no fix' available. Recall 24V-720 installed only software monitoring, not repair.
Recalls/TSBs owners mention: Recall 22V-865000 issued for Wrangler 4Xe with identical powertrain but not extended to Grand Cherokee 4Xe. Recall 24V-720 (95B) and 25V-576 software updates attempted with limited success. One owner reports battery replacement should have been performed instead of software-only fix.
Vehicle enters park unintentionally while driving
Vehicle abruptly shifts itself into park while in motion during normal hybrid-mode operation. Occurs multiple times in succession. Creates serious collision hazard, especially in intersections.
When: While driving in hybrid mode; repeated instances in succession
Symptoms owners cite: Vehicle suddenly shifts to park without driver input; Vehicle decelerates abruptly to stop; Hybrid engine maintenance light illuminated (in one instance); Requires driver to manually shift back to drive to resume
Repairs/costs cited: Dealership and Chrysler engineers involved but no fix identified. Manufacturer confirmed no current repair available.
Recalls/TSBs owners mention: Chrysler/Jeep confirmed no fix available; ticket number 93581933 filed with manufacturer.
Engine valve train noise/cylinder misfiring
Engine produces abnormal loud valve train noise that worsens as engine heats up. Noise varies with cylinder mode switching (8-cyl to 4-cyl). Cylinders misfire audibly on exhaust. Noise loud enough that service advisors question whether engine is diesel. Vehicle vibrates violently in 4-cylinder mode until throttle applied. Reported on brand new vehicle with minimal mileage.
When: New vehicle with less than 3,000 miles; noise worsens as miles accumulate and engine heats up
Symptoms owners cite: Loud valve train noise from engine; Noise increases as engine temperature rises; Audible cylinder misfiring on exhaust at idle; Unsmooth idling; Engine vibration in 4-cylinder mode (whole-vehicle shaking); Loud noise changes when switching between 8-cyl and 4-cyl operation; Service engine light illuminated once during erratic idle; Engine stalled once; Oil temperature elevated (over 240°F during normal driving, 245°F when accelerating); Oil pressure dropping at idle (reaching 28 psi)
Repairs/costs cited: Vehicle in dealership since January 2023 without diagnosis. Battery replaced as precaution. Two different dealerships initially dismissed noise as 'normal.' Dealership foreman acknowledged noise was abnormal after test drive. Vehicle sent back for further diagnosis but as of March 29, 2023 still not diagnosed. No 'ENGINE EXPERT' diagnosis performed. Owner pursuing lemon law.
Complete electrical/powertrain system failure
Vehicle experiences sudden complete loss of all electrical power and propulsion. All safety systems fail including power steering, brake assist, and warning lights. Vehicle becomes immobilized in traffic with no ability to move or brake normally. Described as 'digital crash input code failure' by dealership.
When: During low-speed operation (15-25 mph) in traffic
Symptoms owners cite: Complete loss of vehicle power; Loss of power steering; Loss of accelerator response; Loss of powered brakes (manual braking only); All safety warning lights illuminated; Vehicle immobilized and unable to restart immediately; Loss of power to windows
Codes mentioned: Digital crash input code failure (as reported by dealer)
Repairs/costs cited: Dealership confirmed problem and stated 'there is not a fix for this at this time.' Vehicle blocked traffic for approximately 30 minutes before being towed.
Recalls/TSBs owners mention: Vehicle inspected by Chrysler/Stellantis engineers. Dealership stated all prior recalls should have fixed the problem by replacing the battery.
Timing cover leak and head gasket defect
Timing cover gasket fails allowing oil leakage. Root cause: manufacturing defect in head gasket casting causing gasket to protrude into mounting surface for timing cover gasket, preventing proper seal. Occurred after dealer's initial replacement warranty repair.
When: Few months after initial warranty replacement by dealer; common failure pattern in 4Xe models
Symptoms owners cite: Engine oil leakage from timing cover area; Oil loss over time; Recurrence of leak after dealer repair
Repairs/costs cited: Dealer performed initial warranty replacement. Leak recurred after repair. Dealership and Jeep engineers identified manufacturing defect in head gasket during casting/assembly process. New head gasket and timing cover gasket replacement performed with inspection of mounting surfaces for additional damage.
Infotainment and electrical system malfunctions
Multiple independent infotainment and electrical system failures occurring intermittently. Screens freeze, go blank, or switch to Italian language. Front Collision Warning light cannot be disabled. Bluetooth disconnects randomly. Auto door locks fail. Paddle shifters cease functioning. Driver assistance features (pedestrian avoidance, automatic emergency braking, high-beam assist) stop working. Memory seat adjusts unexpectedly during driving. Pattern repeats approximately every 14 days.
When: Recurring pattern approximately every 14 days
Symptoms owners cite: Infotainment screen switches to Italian language; Screens freeze or display black/blank; Front Collision Warning light illuminates and cannot be turned off; Bluetooth randomly disconnects; Auto door locks fail to engage; Paddle shifters cease functioning; Loss of pedestrian avoidance system; Automatic emergency braking stops working; High-beam assist stops functioning; Memory seat adjusts unexpectedly during driving
Repairs/costs cited: Requires dealership service to restore functionality. Recurring pattern suggests software or electrical configuration issue rather than one-time failure.
Transmission hesitation/jerking during acceleration and deceleration
Vehicle hesitates or jerks during acceleration and deceleration. Jerking behavior occurs when accelerating over uneven surfaces, described as violent bucking back and forth.
When: During normal acceleration and deceleration; exacerbated on uneven road surfaces
Symptoms owners cite: Hesitation upon accelerator pedal depression; Jerking/bucking motion during acceleration; Violent shudder during acceleration over uneven surfaces; Bucking back and forth motion when pulling into traffic
Repairs/costs cited: Software update performed but issue persisted. Concern verified by dealership technician and Napleton Jeep foreman confirmed with Chrysler zone engineering.
Recalls/TSBs owners mention: Chrysler zone engineering aware of issue but no current resolution available.
Battery fire risk and inability to operate safely
High-voltage battery recalled due to fire risk. Manufacturer issued safety alert advising drivers not to charge the vehicle and not to park it near structures. No repair solution available under recall. Vehicle cannot be safely operated or parked.
When: Ongoing; identified through recall notice
Symptoms owners cite: Fire risk hazard with high-voltage battery
Repairs/costs cited: FSA (Field Service Action) indicated no repairs available. Owners advised not to charge vehicle and not to park near structures.
Recalls/TSBs owners mention: Battery fire risk recall issued; however, no repair solution provided. Dealership, Chrysler Capital, and Jeep customer service unable to provide solution. Lessee unable to return vehicle early.
Engine shutdown while starting/loss of charge
Vehicle loses all electrical power requiring jump-start to regain function. Unpredictable shutdown occurs with no warning lights or saved diagnostic codes despite severe failure.
When: Unpredictable; can occur at highway speeds or during normal operation
Symptoms owners cite: Complete loss of all electrical power; Vehicle requires jump-start to restore power; No warning lights or diagnostic codes logged despite failure; 'Service Hybrid Electrical System' warning appearing before complete shutdown
Codes mentioned: No codes logged despite failure (per owner report)
Repairs/costs cited: Dealership unable to replicate. No diagnostic trouble codes found during scan despite severe failure event. Recurring pattern suggests electrical system issue that does not trigger error codes.
Engine wiring harness burn-out and failure
Engine wiring harness burned and failed completely, causing sudden engine shutdown and smoke emission. Vehicle became completely disabled and required towing.
When: January 23, 2025; without warning during normal operation
Symptoms owners cite: Sudden engine shutdown during driving; Smoke visible from engine area; Vehicle completely disabled and inoperable; Complete loss of propulsion
Repairs/costs cited: Failed wiring harness available for inspection at dealership. Chrysler representative inspected vehicle.
Transfer case/PTU failure
Power Transfer Unit (PTU) failure with sudden loud pop sound followed by grinding when vehicle is driven. No warning or symptoms prior to failure. Possible catastrophic failure with loss of power transmission.
When: Without warning; sudden onset
Symptoms owners cite: Sudden loud pop sound; Grinding noise when driving after pop; Potential loss of power transmission; Possibility of vehicle not shifting into park
Repairs/costs cited: Identified by Jeep dealership inspection within one week of failure. Replacement is very costly.
Persistent vibration issue unresolved after 7 service visits
Vehicle exhibits vibration issue that remains unresolved after seven warranty service visits over 89 days. Manufacturer in material breach of warranty repair obligation and has refused replacement or repurchase despite prima facie evidence of failure to repair within reasonable timeframe (60 days).
When: First identified October 29th; ongoing through multiple service attempts over 89 days
Symptoms owners cite: Vehicle vibration (specific cause/location not detailed in complaint)
Repairs/costs cited: Seven warranty service visits at Lithia Jeep of Reno spanning 89 days with issue remaining unresolved as of complaint date. Two warranty cases opened (91655707 and 92312434).
Recalls/TSBs owners mention: Manufacturer refused replacement or repurchase despite failure to repair within 60-day reasonable timeframe required under 49 U.S.C. § 30120.
Engine knocking sound after software update
Knocking sound develops from front of vehicle, particularly when depressing brake pedal. Occurs after manufacturer software update performed as part of service campaign. Sound ceases after shifting to park.
When: After software update/service campaign; at 10,000 miles
Symptoms owners cite: Knocking sound from front of vehicle; Knocking audible when brake pedal depressed; Sound ceases after shifting to park
Repairs/costs cited: Cause not yet determined at time of complaint.
Recalls/TSBs owners mention: Software update/service campaign performed prior to issue development; possible correlation to update.
Reverse gear noise and vibration
Loud sound like 'running over a metal garbage can' occurs when vehicle placed in reverse. Accompanied by floorboard vibration. Occurs immediately upon attempting to back up.
When: First day of ownership after long drive; happens every time reverse is used
Symptoms owners cite: Loud noise resembling running over metal garbage can; Floorboard vibration when in reverse; Occurs immediately upon attempting to back up
Repairs/costs cited: Dealership could not reproduce sound despite overnight inspection of vehicle.
Startup failure after software update
Vehicle fails to start after software update, unable to start after multiple attempts. Vehicle towed to dealership and remains in dealer possession undiagnosed and unrepaired.
When: Several months after software update was performed; at approximately 12,000 miles
Symptoms owners cite: Vehicle fails to start; Multiple start attempts unsuccessful; Prior to startup failure: throttle hesitation at various speeds with no warning light
Repairs/costs cited: Vehicle remains undiagnosed and unrepaired in dealership possession at time of complaint.
Recalls/TSBs owners mention: Manufacturer notified of failure; case opened.
Synthesized from 50 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
The vehicle has experienced recurring safety-related issues associated with the hybrid electrical and propulsion systems. During normal operation, warning messages related to the hybrid system appeared, and the vehicle entered reduced functionality or became unreliable to operate. These conditions created concern about potential loss of propulsion while driving. In addition to propulsion…
Had powertrain trouble with your 2022 Jeep Grand Cherokee?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2022 Jeep Grand Cherokee?
It's a documented issue but not catastrophic. 50 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Based on the 50 complaints filed, powertrain issues most often appear around 23,522 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2022/Jeep/Grand Cherokee.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.