2021 Tesla X Service and Repair Manual

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Covers all 2021 X trims — Long Range Sport Utility 4-Door, Long Range Plus Sport Utility 4-Door, Plaid Sport Utility 4-Door +1 more ·
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2021 Tesla X service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Long Range Sport Utility 4-Door
  • Long Range Plus Sport Utility 4-Door
  • Plaid Sport Utility 4-Door
  • Performance Sport Utility 4-Door

Engines covered

  • BATTERY EV (EV/BEV)

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #22V03700027/01/2022Component: ELECTRICAL SYSTEM:ADAS:AUTONOMOUS/SELF DRIVING:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2016-2022 Model S and Model X, 2017-2022 Model 3, and 2020-2022 Model Y vehicles. The "rolling stop" functionality available as part of the Full Self-Driving (Beta) software may allow the vehicle to travel through an all-way stop intersection without first coming to a stop.

Consequence

Failing to stop at a stop sign can increase the risk of a crash.

Remedy

Tesla will perform an over-the-air (OTA) software update that disables the "rolling stop" functionality, free of charge. Owner notification letters were mailed March 28, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-001.

NHTSA #21V86800009/11/2021Component: AIR BAGS

Tesla, Inc. (Tesla) is recalling certain 2021 Model X and Model S vehicles. The driver's air bag cushion may tear during deployment.

Consequence

A torn air bag may not adequately protect an occupant in a crash, increasing their risk of injury.

Remedy

Tesla Service will replace the driver's air bag, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-21-20-007.

NHTSA #22V04500001/02/2022Component: ELECTRICAL SYSTEM:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model S and Model X, 2017-2022 Model 3, and 2020-2022 Model Y vehicles. The audible chime may not activate when the vehicle starts and the driver has not buckled their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Consequence

The driver may be unaware that their seat belt is not fastened, increasing the risk of injury during a crash.

Remedy

Tesla will perform an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed April 1, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-002.

NHTSA #21V84600029/10/2021Component: FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA

Tesla, Inc. (Tesla) is recalling certain 2017-2021 Model S, Model 3, Model X, and 2020-2021 Model Y vehicles operating software version 2021.36.5.2. A communication error may cause false forward-collision warning (FCW) or unexpected activation of the automatic emergency brake (AEB) system.

Consequence

Unexpected activation of the AEB system may cause the car to stop suddenly, increasing the risk of a crash.

Remedy

Tesla Service has released an over-the-air (OTA) software update, free of charge. The recall began October 25, 2021. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-21-00-004.

NHTSA #22V05000002/02/2022Component: ELECTRICAL SYSTEM:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model 3, Model S, Model X, and 2020-2022 Model Y vehicles. A software error may cause a valve in the heat pump to open unintentionally and trap the refrigerant inside the evaporator, resulting in decreased defrosting performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 103, "Windshield Defrosting and Defogging Systems."

Consequence

Decreased defrosting performance may reduce the driver's visibility, increasing the risk of a crash.

Remedy

Tesla will perform an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed April 1, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-18-002.

NHTSA #22V06300004/02/2022Component: ELECTRICAL SYSTEM:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2020-2022 Model S, Model X, Model Y, and 2017-2022 Model 3 vehicles. The Boombox function allows sounds to be played through an external speaker while the vehicle is in motion, which may obscure the Pedestrian Warning System (PWS) sounds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."

Consequence

Pedestrians may be unaware of an approaching vehicle if the PWS sounds are obscured, increasing the risk of a crash.

Remedy

Tesla will perform an over-the-air (OTA) software update that will disable the Boombox functionality when the vehicle is in Drive, Neutral and Reverse modes, free of charge. Owner notification letters are expected to be mailed April 5, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-003. Note: This recall has been superseded by Recall 22V-235. Tesla's number for the new recall is SB-22-00-003.

NHTSA #22V23300008/04/2022Component: AIR BAGS:SIDE/WINDOW:CURTAIN

Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model X vehicles. The left or right front-row side curtain air bags may not deploy as intended when the windows are lowered. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 226, "Ejection Mitigation."

Consequence

Improper side curtain air bag deployment can increase the risk of injury during a crash.

Remedy

Tesla Service Centers will replace the left and right front-row side curtain air bags, free of charge. Owner notification letters were mailed July 16, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-20-003.

NHTSA #22V23500012/04/2022Component: ELECTRICAL SYSTEM:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2020-2022 Model Y, Model X, Model S, and 2017-2022 Model 3 vehicles. The Boombox function allows sounds to be played through an external speaker while the vehicle is in motion, which may obscure the Pedestrian Warning System (PWS) sounds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."

Consequence

Pedestrians may be unaware of an approaching vehicle if the PWS sounds are obscured, increasing the risk of a crash.

Remedy

Tesla will perform an over-the-air (OTA) software update that will disable the Boombox functionality when the vehicle is in Drive, Neutral and Reverse modes, including Summon and Smart Summon, free of charge. Owner notification letters were mailed June 6, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-003. Note: This recall supersedes recall 22V-063. Vehicles configured with Summon or Smart Summon and already remedied under 22V-063 will need to have the new remedy software installed.

NHTSA #22V29600003/05/2022Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model S, Model X, and 2022 Model 3 and Model Y vehicles operating certain firmware releases. The infotainment central processing unit (CPU) may overheat during the preparation or process of fast-charging, causing the CPU to lag or restart.

Consequence

A lagging or restarting CPU may prevent the center screen from displaying the rearview camera image, gear selection, windshield visibility control settings, and warning lights, increasing the risk of a crash.

Remedy

Tesla will perform an over-the-air (OTA) software update that will improve CPU temperature management, free of charge. Owner notification letters were mailed July 1, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-009.

NHTSA #22V70200019/09/2022Component: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

Tesla, Inc. (Tesla) is recalling certain 2017-2022 Model 3, 2020-2022 Model Y, and 2021-2022 Model S and Model X vehicles. The window automatic reversal system may not react correctly after detecting an obstruction. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 118, "Power-Operated Window Systems."

Consequence

A closing window may exert excessive force by pinching a driver or passenger before retracting, increasing the risk of injury.

Remedy

Tesla will perform an over-the-air (OTA) software update of the automatic window reversal system, free of charge. Owner notification letters were mailed March 31, 2032. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-013.

NHTSA #22V81800001/11/2022Component: STEERING:ELECTRIC POWER ASSIST SYSTEM

Tesla, Inc. (Tesla) is recalling certain 2017-2021 Model S and Model X vehicles. The electronic power assist steering (EPAS) system may experience a loss of power steering assist when driving on rough roads or after hitting a pothole.

Consequence

A loss of power steering assist can require greater steering effort, especially at low speeds, increasing the risk of a crash.

Remedy

Tesla has released an over-the-air (OTA) software update to recalibrate the EPAS system, free of charge. Owner notification letters were mailed December 31, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-014.

NHTSA #22V84300015/11/2022Component: AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2021-2023 Model X vehicles. The restraint control module (RCM) calibration may cause the front passenger air bag to deploy incorrectly during certain low speed crashes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Consequence

A passenger air bag that does not deploy as intended increases the risk of injury during a crash.

Remedy

Tesla has released an over-the-air (OTA) software update to recalibrate the RCM, free of charge. Owner notification letters were mailed January 14, 2023. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-015.

NHTSA #23V08500015/02/2023Component: STEERING:AUTOMATED/ADAPTIVE STEERING

Tesla, Inc. (Tesla) is recalling certain 2016-2023 Model S, Model X, 2017-2023 Model 3, and 2020-2023 Model Y vehicles equipped with Full Self-Driving Beta (FSD Beta) software or pending installation.  The FSD Beta system may allow the vehicle to act unsafe around intersections, such as traveling straight through an intersection while in a turn-only lane, entering a stop sign-controlled intersection without coming to a complete stop, or proceeding into an intersection during a steady yellow traffic signal without due caution. In addition, the system may respond insufficiently to changes in posted speed limits or not adequately account for the driver's adjustment of the vehicle's speed to exceed posted speed limits.

Consequence

FSD Beta software that allows a vehicle to exceed speed limits or travel through intersections in an unlawful or unpredictable manner increases the risk of a crash.

Remedy

Tesla will release an over-the-air (OTA) software update, free of charge.  Owner notification letters were mailed April 15, 2023.  Owners may contact Tesla customer service at 1-877-798-3752.  Tesla's number for this recall is SB-23-00-001.

NHTSA #23V48800014/07/2023Component: SEAT BELTS:FRONT

Tesla, Inc. (Tesla) is recalling certain 2021-2023 Model S and Model X vehicles. The front-row seat belts may not be connected properly to the pretensioner anchors, which can cause the seat belts to detach.

Consequence

A detached seat belt may not properly restrain an occupant during a crash, increasing the risk of injury.

Remedy

Tesla Service will inspect the front-row seat belts and connect the seat belts to pretensioner anchors, or replace the seat belt assemblies, as necessary, free of charge. Owner notification letters were mailed September 12, 2023. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-23-20-004.

NHTSA #23V67900011/10/2023Component: ELECTRICAL SYSTEM

Tesla, Inc. (Tesla) is recalling certain 2021-2023 Model X vehicles. The vehicle controller may fail to detect low brake fluid and will not display a warning light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."

Consequence

Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.

Remedy

Tesla has released an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed December 12, 2023. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-23-00-005.

NHTSA #23V74300003/11/2023Component: STEERING: STEERING WHEEL/HANDLE BAR

Tesla, Inc. (Tesla) is recalling certain 2021-2024 Model S and Model X vehicles. An incorrect air bag may have been installed when the steering yoke or round steering wheel was replaced with a different style of yoke or steering wheel.

Consequence

An air bag that is not designed to function with the replacement steering yoke or wheel may deploy incorrectly, increasing the risk of injury during a crash.

Remedy

Tesla Service will inspect and replace the driver air bag as necessary, free of charge. Owner notification letters were mailed January 2, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-23-20-005.

NHTSA #23V83800012/12/2023Component: ELECTRICAL SYSTEM:ADAS:AUTONOMOUS/SELF DRIVING:SOFTWARE

Tesla, Inc. (Tesla) is recalling 2012-2023 Model S, 2016-2023 Model X, 2017-2023 Model 3, and 2020-2023 Model Y vehicles equipped with all versions of Autosteer leading up to the version(s) that contains the recall remedy. In certain circumstances when Autosteer is engaged, the prominence and scope of the feature's controls may not be sufficient to prevent driver misuse of the SAE Level 2 advanced driver-assistance feature.

Consequence

In certain circumstances when Autosteer is engaged, and the driver does not maintain responsibility for vehicle operation and is unprepared to intervene as necessary or fails to recognize when Autosteer is canceled or not engaged, there may be an increased risk of a crash.

Remedy

Tesla will release an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed February 10, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-23-00-008.

NHTSA #24V05100030/01/2024Component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

Tesla, Inc. (Tesla) is recalling certain 2012-2023 Model S, 2016-2024 Model X, 2017-2023 Model 3, 2019-2024 Model Y, and 2024 Cybertruck vehicles. An incorrect font size is displayed on the instrument panel for the Brake, Park, and Antilock Brake System (ABS) warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 105, "Hydraulic and Electric Brake Systems" and 135, "Light Vehicle Brake Systems."

Consequence

Warning lights with a smaller font size can make critical safety information on the instrument panel difficult to read, increasing the risk of a crash.

Remedy

Tesla began releasing an over-the-air (OTA) software update, free of charge. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-003.

NHTSA #24V15300027/02/2024Component: FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT

Tesla, Inc. (Tesla) is recalling certain 2013, 2018-2021 Model S, 2020-2021 Model X, 2018-2022 Model 3, and 2020-2022 Model Y vehicles. A factory reset muted the Pedestrian Warning System (PWS) sounds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."

Consequence

Pedestrians may be unaware of an approaching vehicle if the PWS sounds are muted, increasing the risk of a crash.

Remedy

Tesla released an over-the-air (OTA) software update, release 2023.44.30.14, free of charge. Owner notification letters were mailed April 27, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-006.

NHTSA #24V37600028/05/2024Component: SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

Tesla, Inc. (Tesla) is recalling certain 2012-2024 Model S, 2015-2024 Model X, 2017-2023 Model 3, and 2020-2023 Model Y vehicles. In the event of an unbelted driver, the seat belt warning light and audible chime may not activate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Consequence

A seat belt warning system that fails to alert occupants of an unbelted seat belt can increase the risk of injury during a crash.

Remedy

Tesla will release an over-the-air (OTA) software update. Owner notification letters were mailed July 26, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-008.

NHTSA #24V55400024/07/2024Component: LATCHES/LOCKS/LINKAGES:HOOD:LATCH

Tesla, Inc. (Tesla) is recalling certain 2021-2024 Model 3, Model S, Model X, and 2020-2024 Model Y vehicles. The hood latch assembly may fail to detect an unlatched hood condition after the hood has been opened.

Consequence

An unlatched hood can fully open, obstructing the driver's view and increasing the risk of a crash.

Remedy

Tesla has released an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed September 24, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-012.

NHTSA #25V17200019/03/2025Component: AIR BAGS

Tesla, Inc. (Tesla) is recalling certain 2021-2024 Model S and 2021-2025 Model X vehicles. An air bag with the incorrect horn pad may have been installed, preventing the horn from sounding.

Consequence

An inoperative horn may prevent the driver from alerting other drivers, increasing the risk of a crash.

Remedy

Tesla service will inspect and install an air bag with the correct horn pad as necessary, free of charge. Owner notification letters were mailed May 20, 2025. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-25-20-001.

NHTSA #24V96700024/12/2024Component: AIR BAGS:FRONTAL:DRIVER SIDE:CUSHION

Tesla, Inc. (Tesla) is recalling certain 2021-2025 Model S and Model X vehicles. The driver's air bag could tear during deployment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 208, "Occupant Crash Protection" and 212, "Windshield Mounting."

Consequence

A torn air bag may not adequately protect an occupant in a crash, increasing the risk of injury.

Remedy

Tesla service will replace the air bag assembly, free of charge. Owner notification letters were mailed February 21, 2025. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-20-001.

NHTSA #26V28300005/05/2026Component: BACK OVER PREVENTION:SOFTWARE

Tesla, Inc. (Tesla) is recalling certain 2017, 2021-2023 Model 3, 2020-2023 Model Y, 2021-2023 Model S, and Model X vehicles operating software version 2026.8.6. The rearview camera image may be delayed when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Consequence

A delayed rearview image reduces the driver's view behind the vehicle, increasing the risk of a crash.

Remedy

Tesla has released an over-the-air (OTA) software update, free of charge. Owner notification letters are expected to be mailed July 3, 2026. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-26-00-001.

TSB #11029582

On some Model S and Model X vehicles, the compression gap of the HVAC drain funnel seal is wider than intended, which may cause water ingress. Inspect the sponge area of the HVAC drain funnel for water ingress. If water ingress is present,

TSB #11023640

On certain Model S and Model X vehicles built between approximately January 2021 and September 22, 2022, the High Voltage (HV) battery ports plungers intended for internal water leak egress (also known as flood ports) can be replaced with p

TSB #11023641

On certain Model S and Model X vehicles, the HV battery umbrella valves, over time, may become damaged due to road debris. Replace all 5 umbrella valves with updated parts. This new revision, R1, updates the affected Countries/Regions.

TSB #11021494

Messaging sent directly to customers who have queued with Tesla Service to perform Service Bulletin SB-25-16-002 "Replace Flood Port Plungers". The customer is informed that their vehicle is in queue to receive parts and repairs, Tesla Serv

TSB #11021493

Proactive messaging sent directly to customers affected by Service Bulletin SB-25-16-002 "Replace Flood Port Plungers". The customer is informed that their vehicle is impacted by Service Bulletin SB-25-16-002, the benefits of performing the

TSB #11020190

On certain Model S and Model X vehicles, the HV battery umbrella valves, over time, may become damaged due to road debris.

TSB #11018848

On certain Model S and Model X vehicles built between approximately January 2021 and September 22, 2022, the High Voltage (HV) battery ports plungers intended for internal water leak egress (also known as flood ports) can be replaced with p

TSB #11018847

Certain Model S and Model X vehicles were equipped with driver airbags that do not meet internal quality standards.

Showing the 8 most recent of 87 technical service bulletins on file with NHTSA.

No complaints filed No consumer complaints on file with NHTSA for the 2021 Tesla X.

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