OBD-II Code P2299: Brake and Gas Pedal Conflict Explained

What Does P2299 Mean?

P2299 means the Powertrain Control Module (PCM) detects a critical conflict: it is receiving signals that both the brake and accelerator pedals are pressed simultaneously. The computer triggers this code and activates Brake-Throttle Override (BTO). This protocol prioritizes the brake signal and cuts engine power to prevent unintended acceleration.

Technical definition: The official SAE/OBD-II definition for code P2299 is "Brake Pedal Position / Accelerator Pedal Position Incompatible".

Can I Drive With P2299?

Yes, But With Caution. You can drive, but it is not recommended for long distances. The vehicle enters a reduced power "limp mode," making acceleration sluggish. This sudden loss of power creates a significant safety risk when merging or pulling into traffic. While it does not cause immediate mechanical damage, ignoring the fault masks developing sensor issues and places the vehicle in a constant state of compromised safety.

Common Causes

• Driver Habit (Two-Footed Driving) (Very Common) — This is the number one cause. The driver rests their left foot on the brake pedal while accelerating with their right. The PCM detects both inputs, flags the conflict, and sets the code. Chrysler, Dodge, Jeep, and Ram service bulletins (e.g., #9003413) state this is the primary cause and warn against unnecessary parts replacement.
• Obstructed Pedal Path (Common) — An unsecured or bunched-up floor mat wedges under the accelerator or brake pedal, preventing it from returning to its rest position. This forces the PCM to register a pressed pedal, creating a conflict.
• Faulty Brake Pedal Position (BPP) Sensor / Switch (Common) — The brake light switch tells the PCM when you press the brake. If this switch sticks, fails internally, or goes out of adjustment, it sends a constant "brake applied" signal. This conflicts with the accelerator pedal input during normal driving.
• Faulty Accelerator Pedal Position (APP) Sensor (Less Common) — The APP sensor tells the PCM how far down you press the gas pedal. If an internal potentiometer fails or sends an incorrect voltage signal (e.g., not returning to 0.5V), the PCM registers acceleration even when your foot is off the pedal.
• Wiring or Connector Issues (Less Common) — Damaged wires, corroded pins, a poor ground, or a short circuit in either the BPP or APP sensor harness causes incorrect signals to reach the PCM.
• Needs a Powertrain Control Module (PCM) Software Update (Rare) — On certain Chrysler, Dodge, and Jeep models, the original software logic for detecting this fault is too sensitive. A dealership software update (reflash) corrects it, as noted in TSBs like #18-049-16.
• Aftermarket Performance/Cosmetic Modifications (Rare) — Plug-in throttle controllers modify APP sensor signals, and bulky pedal covers physically restrict pedal travel. Both interfere with normal operation and trigger the code.

Symptoms

• Reduced Engine Power (Limp Mode) — The vehicle feels extremely sluggish and refuses to accelerate. This deliberate safety feature prevents unintended acceleration.
• Unresponsive or Lagging Accelerator Pedal — The engine ignores the gas pedal entirely as the PCM prioritizes the brake signal.
• Cruise Control is Disabled — The cruise control system shuts off and refuses to engage because it requires accurate data from both pedals.
• Check Engine Light is On (also visible on scanner) — This is the most common and immediate indicator of the problem.
• Electronic Throttle Control (ETC) Warning Light (also visible on scanner) — A lightning bolt icon illuminates on the dashboard, especially on Chrysler, Dodge, and Jeep vehicles, indicating a throttle system fault.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this code.

Common Fixes & Costs

• Change Driving Habits / Adjust Floor Mat — Parts: $0, Labor: $0, ~0.1 hr book time (DIY)
• Replace Brake Light Switch (BPP Sensor) — Parts: $25-$70, Labor: $50-$150, ~0.5 hr book time (DIY)
• Replace Accelerator Pedal Assembly (APP Sensor) — Parts: $70-$450, Labor: $80-$170, ~0.8 hr book time (Intermediate)
• Reprogram Powertrain Control Module (PCM) — Parts: $0, Labor: $125-$300, ~1.5 hr book time (Professional)
• Replace Powertrain Control Module (PCM) — Parts: $600-$1,200, Labor: $150-$300, ~2.5 hr book time (Professional)

DIY vs Professional

• Change Driving Habits / Adjust Floor Mat — Beginner:
  Tools: None
• Replace Brake Light Switch (BPP Sensor) — Beginner:
  Tools: Basic hand tools (socket set, pliers), multimeter for testing.
• Replace Accelerator Pedal Assembly (APP Sensor) — Beginner:
  Tools: Basic hand tools (socket set), torque wrench.
• Reprogram Powertrain Control Module (PCM) — Beginner:
  Tools: Dealer-level scan tool with programming subscription (e.g., WiTECH for Chrysler/Dodge/Jeep).

Used vs. New Parts: Buying Guide

When a used part is worth it: For a simple mechanical brake light switch, a used OEM part is cost-effective. For the electronic Accelerator Pedal Position (APP) sensor, buying new is mandatory due to wear on the internal potentiometers.

Donor-vehicle mileage cap: roughly under 60000 miles for the part to have meaningful remaining life.

Donor quality checklist:

• Verify the donor vehicle's part number is an exact match.
• Avoid electronic parts from high-mileage vehicles or regions with extreme weather.
• Inspect connectors on used parts for corrosion, bent pins, or damage.

Decision logic:

• If The failed part is the brake light switch. → A used OEM part is acceptable, but a new aftermarket part is inexpensive and comes with a better warranty.
• If The failed part is the accelerator pedal assembly (APP sensor). → Buy new. The risk of a used electronic sensor failing prematurely is high.
• If The vehicle is over 10 years old and budget is the primary concern. → A tested, used part from a reputable salvage yard with a short-term warranty is a viable option.

Warranty tradeoff: Used parts offer a 30-90 day warranty. New aftermarket parts come with a 1-year to limited lifetime warranty. New OEM parts carry a 1-year warranty.

Worst-case if a used part fails: $150-$300 if a used part fails shortly after installation, primarily due to repeated labor costs.

What Happens If You Wait — Timeline

1. 0-2 weeks: Code sets, Check Engine Light is on. Vehicle enters limp mode intermittently. Performance returns to normal after an ignition cycle. (MPG impact: 0-5%% · Added cost: $0)
2. 2 weeks - 3 months: Limp mode becomes frequent. Any instance of two-footed driving or sensor glitch triggers it, creating a major safety nuisance in traffic. (MPG impact: 5-10% (due to inefficient limp mode driving)% · Added cost: $50-$100 in wasted fuel and increased driver stress.)
3. 3-6 months: A failing sensor (BPP or APP) fails consistently. The car gets stuck in limp mode, or the accelerator becomes completely unresponsive. Constant limp mode strains the transmission. (MPG impact: 10-15%% · Added cost: $200-$600 (cost of sensor replacement plus potential towing).)
4. 6+ months: Ignoring a persistent electronic fault masks a developing wiring or PCM issue. A completely failed APP sensor renders the vehicle undrivable. (MPG impact: N/A (vehicle may be undrivable)% · Added cost: $200-$1500+ (depending on whether an expensive PCM or complex wiring repair is needed).)

Cost of Not Fixing It

• Immediate: Sudden entry into 'limp mode,' creating a significant safety hazard in traffic due to loss of acceleration. (Added cost: Negligible)
• 1-3 months: Increases stress on the transmission if limp mode restricts gear shifting. Masks the underlying problem, leaving the vehicle unresponsive. (Added cost: $0 - $500)
• 6+ months: Ignoring a persistent limp mode condition leads to severe drivability issues. The primary cost remains the safety risk and eventual repair of the original fault. (Added cost: $200 - $1500+)

Diagnosis Steps

1. Interview the Driver and Inspect the Floor Mat
   Ask the driver if they use two feet to drive (one for brake, one for gas). Remove the driver-side floor mat entirely for testing. A bunched-up mat easily causes pedal interference. If the cause is driver habit or the mat, clear the code and test drive to confirm the fix.
   Tools: None (Beginner)
2. Scan for Codes and Review Freeze Frame Data
   Connect an OBD-II scanner. Confirm P2299 is present and review the freeze frame data to see the vehicle's speed and RPM when the fault occurred. Diagnose any ABS codes first. Codes like P2122, P2127, or P2138 point directly to a failed APP sensor.
   Tools: OBD-II Scan Tool (Beginner)
3. Analyze Live Sensor Data (The Correlation Test)
   Use a scan tool to display live graphs for APP Sensor 1, APP Sensor 2, and the BPP Switch. With the engine off (key on), the BPP reads 'Off' and both APP sensors sit at their baseline low voltage (~0.5V). Press the brake; the BPP switches to 'On' instantly. Slowly press the accelerator; both APP sensor readings rise smoothly to their max values (~4.5V). Any sticking or simultaneous 'On' (BPP) and active percentage (APP) readings pinpoint the failure.
   Tools: Advanced OBD-II Scan Tool with Live Data (Intermediate)
4. Test the Brake Light Switch (BPP) with a Multimeter
   If the scan tool shows the brake signal stuck 'On', test the switch on the brake pedal bracket. Disconnect it and set your multimeter to continuity (beep). With the switch's plunger extended (simulating a pressed pedal), the probes show continuity. When you press the plunger in (simulating a released pedal), continuity stops. If it has continuity in both positions, replace the switch.
   Tools: Multimeter, Basic hand tools (Advanced)
5. Test the APP Sensor Voltage at the Connector
   Disconnect the APP sensor. With the key on (engine off), use a multimeter to verify the 5V reference and ground wires. Back-probe the signal wires with the connector plugged in. Voltage reads low (~0.5V-0.8V) with the pedal released and sweeps smoothly to ~4.5V when fully pressed. A jumpy or stuck signal confirms a bad APP sensor.
   Tools: Multimeter, Back-probe kit (Advanced)
6. Test APP Sensor Resistance
   With the APP sensor disconnected, test the internal resistance of the potentiometers. Set your multimeter to Ohms (Ω). Probe the corresponding pins (refer to a wiring diagram). Resistance sweeps smoothly as you slowly press the pedal (typically 1.5 kΩ to 3.5 kΩ). An open circuit or a short indicates a failed sensor.
   Tools: Multimeter, Vehicle-specific wiring diagram (Advanced)
7. Inspect Wiring and Connectors
   Visually inspect the wiring harnesses for the brake light switch and accelerator pedal. Look for chafed wires, corrosion, or loose connectors. Perform a 'wiggle test' by gently moving the harness while watching live sensor data on your scan tool to spot signal fluctuations.
   Tools: Flashlight, Mirror, Multimeter (Intermediate)
8. Check for Technical Service Bulletins (TSBs)
   Search online for TSBs related to P2299 for your specific year and model. A PCM software update (reflash) is the required fix for overly sensitive fault logic on many Chrysler, Dodge, and Jeep vehicles (e.g., TSB #18-049-16).
   Tools: Internet access, Phone (Advanced)
9. Perform a Pedal Relearn/Calibration Procedure
   After replacing a BPP switch, APP sensor, or updating the PCM, perform a pedal calibration. Some vehicles learn automatically after a battery disconnect, while others require a specific procedure using a dealer-level scan tool to reset pedal travel values.
   Tools: Advanced OBD-II Scan Tool (Professional)

When This Code Triggers (Freeze-Frame Conditions)

• Engine Coolant Temp: 180-200°F (82-93°C) (The engine is fully warmed up and in closed-loop operation.)
• RPM: 1200-2500 RPM (The fault occurs during steady-state cruising or light acceleration, rarely at idle.)
• Engine Load: 20-50% (Consistent with maintaining speed on a level road or slight incline.)
• Vehicle Speed: 30-60 mph (48-97 kph) (The code sets most frequently during city or highway driving following a period of steady speed.)

Related Codes

• P2122 — Means 'Accelerator Pedal Position Sensor Circuit Low'. If accompanied by P2299, focus diagnosis entirely on an electrical fault (bad sensor, wiring short) in the APP sensor circuit, not driver habit.
• P2127 — Indicates a 'Circuit Low' fault for the redundant signal (Sensor 2) from the APP sensor. Seeing P2299 with P2127 makes a faulty accelerator pedal assembly highly likely.
• P2138 — Means 'APP Sensor 1/2 Correlation'. The two redundant sensors inside the accelerator pedal disagree. If present with P2299, the accelerator pedal assembly has failed and must be replaced.
• P0504 — Means 'Brake Switch A/B Correlation'. Indicates a problem within the brake switch itself. If P0504 appears with P2299, replace the brake light switch before further troubleshooting.

Climate & Environmental Factors

• Cold Weather: Intermittent P2299 codes frequently appear during freezing temperatures (around 30°F / -1°C). Cold causes sensor mechanicals to stick or respond slowly, creating a temporary conflict that resolves as the cabin warms up.
• High Humidity / Water Intrusion: Water intrusion into the cabin floorboard corrodes the low-lying electrical connectors for the APP or BPP sensors. This increases circuit resistance, causing erratic signals that trigger the code.

How to Talk to a Mechanic About This Code

Say this: "I have a P2299 code and I'd like to schedule a diagnostic. Before replacing the accelerator pedal, please verify it is not a floor mat obstruction, two-footed driving habit, or a faulty brake light switch. I'd like you to check the live data for the BPP and APP sensors."

This signals you understand the cheapest causes. It directs the mechanic to follow a logical diagnostic procedure, preventing them from jumping to an expensive APP sensor replacement without justification.

Avoid saying:

• 'My check engine light is on, can you look at it?'
• 'My car is feeling sluggish, just fix it.'
• 'I think I need a new gas pedal.'

Questions to ask before authorizing the repair:

• Did you confirm the floor mat isn't interfering and ask about driving habits?
• Did you test the brake light switch? Does its live data show it's stuck 'On'?
• If recommending an accelerator pedal replacement, can you show me the scan tool data where its voltage is stuck or jumping?
• Have you checked for Technical Service Bulletins (TSBs) related to a PCM software update for this code?

Where to Take It: Dealer vs Independent vs Chain

• Dealer: Necessary for a software reflash fix. Excellent for warranty work, but an expensive choice for a simple brake switch replacement.
  Best for: Vehicles under warranty., Vehicles with a known TSB requiring a PCM software update (reflash)., Complex electrical issues requiring proprietary wiring diagrams.
  Downsides: Highest labor rates., Inclined to replace an entire assembly rather than a smaller component. (Typical cost: +50% vs. baseline)
• Independent Shop: Best fit for most P2299 scenarios. An experienced independent technician checks the simple causes (mat, driving style, brake switch) first, saving you money.
  Best for: Out-of-warranty vehicles where cost is a factor., Diagnosing and replacing common failure parts like the brake light switch., Shops with ASE-certified technicians experienced in electrical diagnostics.
  Downsides: Quality and diagnostic skill vary between shops., May lack specific tools to perform a PCM reflash. (Typical cost: +0% vs. baseline)
• Chain Shop: Acceptable if you are certain it is a specific part like the brake switch and just need it installed. Avoid for initial diagnosis of an intermittent P2299 code.
  Best for: Simple parts replacement if you have already diagnosed the problem yourself.
  Downsides: Technician skill is inconsistent., Business model encourages upselling, leading to expensive accelerator pedal replacements without thorough diagnosis. (Typical cost: -10% vs. baseline)

When to Walk Away From the Repair

If estimated repair cost exceeds 40-50% of the car's Kelley Blue Book private-party value, sell it as-is.

• Car worth $4000, fix is $2000: Borderline — get a 2nd opinion before authorizing. This repair cost is a significant portion of the car's value.
• Car worth $12000, fix is $1800: Fix it — well below the threshold and restores significant value and safety.
• Car worth $2500, fix is $1500: Walk away — list for sale or scrap. The repair cost is too high relative to the vehicle's value.

What Scan Tool You Need for This Code

Minimum: A scanner that reads codes and displays live sensor data for the Accelerator Pedal Position (APP) and Brake Pedal Position (BPP) sensors.

A basic $20 code reader cannot show the live data needed to determine if the brake switch is stuck 'On' or if the accelerator pedal sensor is failing to return to zero.

Budget: BlueDriver Pro Scan Tool (~$99) — Connects to your smartphone via Bluetooth and provides excellent live data graphing for the pedal sensors.

Mid-range: Innova 5610 (~$330) — A powerful handheld scanner with a clear screen for graphing live data. Offers bidirectional controls to test components.

Professional: Autel MaxiCOM MK808 (~$500) — A full-featured diagnostic tablet that performs pedal relearn/calibration procedures required after replacing a pedal assembly.

Rent vs buy: If this is a one-time diagnosis, auto parts stores let you use a scanner for free. Buy a scanner only if you perform diagnostics regularly.

How to Clear the Code After You Fix It

1. Use an OBD-II scan tool to clear the P2299 code.
2. Perform a complete drive cycle to allow the vehicle's readiness monitors to run.
3. Rescan the vehicle to ensure the code has not returned and that monitors are set to 'Ready'.

Drive cycle (~30 minutes): A generic drive cycle includes a cold start (sitting for 8+ hours), 2-3 minutes of idling, 10-15 minutes of mixed city and highway driving (reaching speeds of 55-65 mph), and allowing the vehicle to cool down. This allows the PCM to re-run its diagnostic tests.

Readiness monitors affected: Catalyst Monitor, Oxygen (O2) Sensor Monitor, EVAP System Monitor

Before emissions retest: drive at least 100 miles to fully set monitors.

Watch out for:

• Clearing the code without fixing the root cause results in the code returning quickly.
• Taking the car for an emissions test immediately after clearing the code results in a 'Not Ready' failure.
• Disconnecting the battery does not guarantee readiness monitors reset properly and clears important learned data.

Will This Fail Emissions / State Inspection?

Yes — this code typically fails an OBD-II emissions inspection.

• California: An active P2299 code is an automatic smog check failure. After repair, complete a full drive cycle to set readiness monitors before re-testing.
• New York: A vehicle automatically fails the NYS inspection if the Check Engine Light is on for P2299.
• Texas: In emissions-testing counties, an illuminated Check Engine Light for P2299 is an automatic failure. Drive 50-100 miles after clearing the code to reset monitors.

Most Commonly Affected Vehicles

• Ram 1500 / 2500 / 3500 (2013-2019) — Manufacturer TSBs (#9003413, #53034160A) explicitly state this code is caused by 'two-footed driving' and warn against replacing the accelerator pedal. 2014-2016 models require software updates (TSB #18-103-16 REV. B) to fix overly sensitive logic.
• Chrysler 300 / 200 / Town & Country (2013-2017) — Extremely prone to this code due to driver habit. Chrysler service bulletins advise this is rarely a parts failure. 2016 models require TSB #18-049-16 for a PCM software update.
• Dodge Durango / Challenger / Charger / Journey (2008-2017) — The primary cause is confirmed by the manufacturer to be the driver pressing both pedals. TSB #18-049-16 provides a software update for 2016 Durango models to correct sensitive fault logic.
• Jeep Grand Cherokee / Cherokee / Patriot (2014-2019) — Jeep TSBs (#9003413) strongly advise the cause is driver behavior. 2016-2017 models require software updates (TSB #18-049-16 REV. B) to fix logic that triggers the code improperly.
• Ford F-150 / Fusion / Escape (2008-2023) — A generic code appearing on many Fords. Diagnosis follows the standard procedure, but it is less frequently tied to driver habit compared to Chrysler products.
• Hyundai Santa Fe / Tucson (2006-2012) — The system checks for a malfunctioning accelerator sensor. The code sets if the brake is applied while the APP sensor reads more than 5% at low speed.
• Nissan Altima / Titan / Primastar (2007-2021) — Indicates a mismatch between brake and accelerator inputs. Diagnosis must include checking for a faulty stop lamp switch, a known issue on these models.
• Mazda 3 / 6 / CX-9 (2010-2022) — Diagnosis follows the standard procedure of checking driver habit and pedal obstructions before testing sensors.

Manufacturer-Specific Notes

• Chrysler / Dodge / Jeep / Ram: TSBs #9003413 and #53034160A explicitly state P2299 is 'usually caused by a two footed driver' and warn technicians NOT to replace the accelerator pedal assembly without exhaustive diagnosis.
• Chrysler / Dodge / Jeep: For 2014-2017 models, TSBs (#18-049-16, #18-086-16, #18-103-16) fix an erroneous P2299 code with a PCM software update, proving the original fault logic was too sensitive.
• Ram: On 2014-2016 Ram trucks, P2299 appears alongside unrelated codes like P0335 (Crankshaft Position Sensor) or P0116 (Engine Coolant Temp Sensor), pointing to a broader PCM software glitch requiring a reflash.
• Dodge / Chrysler: The act of 'Brake Torquing' (holding the brake and gas to do a burnout) reliably triggers this code and limp mode on performance models like the Charger and Challenger.
• All: There are no active recalls for code P2299. Repairing a failed APP or BPP sensor is covered under standard bumper-to-bumper or powertrain extended warranties.

Real Owner Stories

2013 Ram 1500 while towing

While towing a trailer, the truck went into limp mode with the Check Engine Light and 'Service Electronic Throttle Control' message. The code was P2299.

What they tried:

1. The owner suspected a sensor failure due to towing strain.
2. After reading forums, they realized they were using two feet to drive—one on the gas and one covering the brake—to manage trailer momentum.

Outcome: The owner cleared the code and consciously used only their right foot. The code did not return.

Lesson: On Ram/Dodge/Chrysler/Jeep vehicles, driver habit is the most likely cause. Rule out 'two-footed driving' before assuming a part failed, especially when towing.

2018 Mazda 3 with 80,000 miles

Car intermittently lost acceleration, resolving after taking foot off the gas and pressing it again. The dealer found a stored P2299 code.

What they tried:

1. The dealer recommended spark plugs, fuel injection service, and belt replacement.
2. The owner had the work done, but the problem returned.

Outcome: Forum members suggested testing the brake light switch or investigating a PCM firmware update, common fixes for intermittent P2299 on Mazdas.

Lesson: Do not get upsold on unrelated maintenance for an electronic fault code. An intermittent P2299 points to a failing brake light switch or a software glitch, not spark plugs.

2014 Dodge Journey with multiple codes

Vehicle was hard to start, idled rough, and smelled of gas. The initial code was P2299, but multiple other DTCs appeared after starting attempts.

What they tried:

1. Cleaned the throttle body and performed a throttle body reset.
2. Cleared codes, but rough idle persisted and P2299 was no longer the only code.

Outcome: The initial P2299 was a symptom of a larger issue. Subsequent codes suggested a failure in the throttle body or PCM, requiring advanced diagnostics.

Lesson: When P2299 is accompanied by severe drivability issues like a no-start, it is a secondary code. The root cause requires in-depth diagnosis.

How to Prevent This Code From Triggering

• Practice single-foot driving (Daily habit) — Using only your right foot prevents the simultaneous inputs that are the #1 cause of code P2299 in Chrysler/Dodge/Jeep/Ram vehicles.
• Secure the driver-side floor mat (Weekly or after vacuuming) — Anchoring the floor mat prevents it from sliding forward and obstructing the pedals.
• Keep the pedal area clear of debris (Ongoing) — Objects rolling under the pedals prevent them from returning to their rest position, triggering the code.
• Periodically inspect pedal mechanicals (Every 30,000 miles) — Check that pedals move freely. A worn bushing causes a slow return, which the PCM interprets as a conflict.
• Clean electrical connectors if exposed to moisture (As needed (e.g., after driving through high water)) — Moisture in low-lying APP or BPP sensor connectors causes corrosion and faulty signals. Clean with electrical contact cleaner.

Frequently Asked Questions

Can a bad floor mat really cause the P2299 code?

Yes. If a thick or improperly placed floor mat slides forward, it holds the gas pedal down slightly or prevents the brake pedal from returning. This creates the conflict in the computer and triggers the code. Always remove the mat for testing.

I only drive with one foot, why did I get this code?

If you rule out driving style and floor mats, the next most likely cause is a failing brake light switch. It sticks and tells the computer the brake is applied even when it is not. This is a common wear item and much cheaper to replace than the accelerator pedal.

What does 'brake torquing' have to do with code P2299?

Brake torquing is intentionally pressing the brake and accelerator simultaneously to spin the rear wheels. This exact scenario triggers the P2299 code and forces the vehicle into limp mode.

What are the most common misdiagnosis mistakes for P2299?

The biggest mistake is replacing the expensive accelerator pedal assembly without ruling out driver habit, floor mat obstruction, or a faulty brake light switch. Another pitfall is clearing the code without checking freeze-frame data. Finally, failing to diagnose ABS codes (like P0504) first leads to chasing the wrong problem.

Can my aftermarket parts cause a P2299 code?

Yes. Plug-in throttle controllers alter the signal from the accelerator pedal sensor, causing a conflict with the brake signal. Bulky aftermarket pedal covers cause mechanical interference. Remove these modifications as a primary diagnostic step.

Is it safe to just clear the code and keep driving?

If you do not fix the underlying issue, the code returns. Driving with this fault is risky because the car unexpectedly enters 'limp mode,' leaving you without the acceleration needed to merge safely.

Why does my car go into 'limp mode' with this code?

Limp mode is a critical safety feature. The computer sees a dangerous conflict (braking and accelerating simultaneously) and drastically reduces engine power to prevent the vehicle from accelerating out of control.

My mechanic wants to replace the whole accelerator pedal assembly. Is that right?

Be cautious. While a faulty accelerator pedal causes this code, it is rarely the culprit on Chrysler, Dodge, Jeep, and Ram vehicles. Manufacturer service bulletins specifically warn against replacing the pedal first. The issue is usually your driving style, a floor mat, or a $30 brake light switch.

Key Takeaways

• Code P2299 triggers when the Powertrain Control Module detects simultaneous brake and gas pedal inputs for more than 2 seconds.
• Over 80% of P2299 codes on Chrysler, Dodge, Jeep, and Ram vehicles are caused by 'two-footed driving,' not a mechanical failure.
• Remove the driver-side floor mat before buying parts; a bunched-up mat holding the gas pedal down is the second most common cause.
• If a part has failed, test the $30 brake light switch with a multimeter before replacing the $200+ accelerator pedal assembly.
• Check for manufacturer Technical Service Bulletins (TSBs), as many 2014-2017 models require a dealer PCM software update to fix overly sensitive pedal logic.