If you aren’t someone who makes frequent purchases, selecting the best Best Gm Code Reader won’t be an easy chore for you. However, you shouldn’t be concerned because we have provided you with the most comprehensive list possible of the top Best Gm Code Reader. Have a look at the products on our list, and pick the ones that appeal to you the most.
We researched and tested Best Gm Code Reader in the market to get you this list. Our most recommended product is ANCEL Best Gm Code Reader. Check out our picks for all of our favorites, and be sure to read our buying guide to get all the information you need to make the best choice!
Editor's Choice
FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for
Premium Pick
BlueDriver Bluetooth Pro OBDII Scan Tool for iPhone & Android
Top 10 Best Gm Code Reader
We researched and compared the top products in the Best Gm Code Reader category to provide you with these recommendations.
1. ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic
- CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on, quickly read and clear diagnostic trouble codes, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information. Instead of taking car to mechanic shop, you can use it to check the trouble code and show code definition by yourself.
- Sturdy and Compact: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 OBD2 scanner is a well-constructed device with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
- Accurate Fast and Easy to Use: The AD310 scanner can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble codes in seconds. If you want to find out the cause of the check engine light, this device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
- OBDII Protocols and Car Compatibility: Many cheap scan tools do not really support all OBD2 protocols. This is not the case with the AD310 scanner as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Check compatibility with your vehicle model before purchasing.
- Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car.
2. INNOVA 3123 GM OBD1 Code Reader, Windows XP
- Safely accesses the on-board computer to read ECM and ABS codes
- Works on most General Motors domestic cars and trucks from 1982 to 1995
- Connects to your vehicle's computer self-test connector
- Will not harm the vehicle's computer system
- Includes instructions in English, French and Spanish
- This item does not read codes on diesel, Cadillac, Geo, Nova, and Sprint vehicles
3. FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for
- Vehicle CEL DoctorThe NT301 obd2 scanner enables you to read DTCs, access to emissions readiness status, turn off CEL(check engine light) or MIL, reset monitor, read live data and retrieve VIN of your vehicle.
- Accuracy & StreamsLive data graphing and logging. Accurately read error codes for most Worldwide cars, SUVs, light trucks and 12V diesels equipped with Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend.
- Worthy to OwnRecommended by Mechanic Scotty Kilmer on Youtube. Codes analysis and Printer compatible. Unique PATENTED design, 2.8" color screen, Free Lifetime Update and 1-year seller assurance with EXCLUSIVE tech and service team.
- Smog Check HelperRead/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident emissions test.
- Home NecessityOpen to global customers. No battery required, NT301 obd scanner is charged directly from the 16pin DLC in your vehicle. It is recommended as a necessity in your toolbox and one of the best gifts for Home and Autoshop Mechanics.
- Please NoteDear customer, if you are not pleased with your NT301 and choose to return it, please kindly mark it unsellable to avoid an used one is resold again to other customers. Appreciate very much!
- Warm TipsNT301 car scanner can be used directly with no need for registration or update, as it is already the latest version. Your Foxwell's screen is with a tightly-fitting screen protector. If any scratches are found, just tear off the screen protector from the upper left or upper right corner. 🙂
4. BlueDriver Bluetooth Pro OBDII Scan Tool for iPhone & Android
- MORE CODES: To understand the problem with your vehicle you need the complete picture. With an up-to-date modern scan tool, you scan deeper to read, understand, and clear more codes. Access information normally only available to professional mechanics on their most expensive scan tools.
- REAL FIXES: Get unlimited vehicle specific Repair Reports, generated from our database of millions of fixes verified by Professional Automotive Technicians. Save time and money.
- NO CORDS: All the capabilities of an expensive scan tool (extended vehicle coverage, live data, etc.) combined with the power and convenience of your smartphone or tablet. No cords, no subscriptions, and regular free updates.
- LIVE DATA: View live data and monitor your vehicles health in real time. Configure the data sources, customize your view with various displays and colours, and log and export live data as a file.
- BlueDriver is proudly American owned and is the OBD2 Diagnostic Scan Tool trusted by professional mechanics and developed and supported by Professional Engineers.
5. 2025 LAUNCH Creader Elite V2.0 fit for GM Bi-Directional Scan Tool, All Reset Full System Diagnostic
- FRE.E TPMS ACTIVATION TOOL FOR GM CARS Just click "Add to Cart ",you will get a FRE-E TPMS activation Tool which works for GM cars.
- 2025 New Upgraded Version of ELITE for GM2025 LAUNCH Creader Elite V2.0 fit for GM is upgraded version with Enhanced Hardwares & Software, same as LAUNCH X431 Series, MUCH FASTER and SMARTER! a.Dismountable USB Cable b.Larger 2G+16GB Extended Memory c.Android 8.1 OS d.3000mAh Battery with Power Button e.Lifetime F~ree Update f.Full Systems Diagnostic g.All F~ree Service Function h.Bi-Directional Control i.AutoVIN j.Full OBD2 Modes
- Powerful Bi-Directional Control/Active TestLAUNCH Creader Elite V2.0 fit for GM scanner code reader can send command directly from the automobile scanner to vehicle's ECU to perform vehicle-specific active tests on car's components and parts, confirm whether this part work normally and find out potential problems. Such as Doors, Windows, Mirrors, Lights, Headlamps, Wipers, Sunroofs, Air Pump Relay Test, Fuel Pump Relay Test, Spark Advance Test, Fan Speed Desired Test, Cooling Fan Test etc.
- All F~ree Maintenance Service ResetAs the popular diagnostic scanner in the market, LAUNCH Creader Elite V2.0 diagnostic scan tool comes with comprehensive service options: Reset, Relearn, Relearn, Match, Adaption, Calibration, Initialization. Such as Oil light reset, EPB, SAS, Throttle Relearn, D.P.F Regen, ABS Bleeding, Injector Coding, CVT, Air Suspension, Crankshaft Relearn, Gear Learning, Battery Registration. The Functions depends on the conditions of the vehicle, please inform the VIN by QA or Email for check.
- OE-LEVEL Full Systems Diagnostic 2025 new upgraded LAUNCH Creader Elite V2.0 fit for GM diagnostic scan tool, provides you with All-Around & In-Depth diagnostic for all available modules such as ECM/BCM/SAS/ABS/TCM/.... It supports to read/clear codes, live data stream, retrieves module info, turn off warning light, actuation test, freeze-frame and so on, which make you easily know the car situation and finger out problems soon.
- AUTO VIN FOR GM & FULL OBD2 MODES FOR ALL BRANDSAUTO-VIN can auto access to car information and scan vehicle systems by one touch for 2006+ GM cars like Buick/Chevy/Cadillac/GMC/Alpheon/Ravon/Pontiac/Saturn/Hummer/Oldsmobile/Holden/Daewoo/Workhorse, no longer needed to input manual.For some 2021 and more New Vehicles, it requires CANFD adapter as the scanner doesn't support CANFD protocols LAUNCH Creader Elite V2.0 fit for GM has an extra function: It supports Full 10 OBD2 Test Modes for ALL brands vehicles after 1996, including I/M readiness, O2 Monitor Test, EVAP test(Mode 8), On-board Monitor test(Mode 6) and more.
- More Valuable Add-Onsa.11 Languages option, including English, French, Spanish, German,etc, easy to use localized languages for vehicle diagnosis b.One-Click WiFi touchscreen operation to Share/Print vehicle health report via E-mail c.Mall Option to give you more choice to access car brands except cars for GM , you can purchase 1 Single Reset for all brands or buy 1 Car Brand to do full functions for specific cars d.Online Diagnostic Feedback, allows you to submit online feedback of your diagnostic problems to LAUNCH for analysis and troubleshooting to get valuable solutions.
- ALL WORK WIFI NEEDED+4 IN 1 LIVE DATA GRAPHNot only upgrade software needs WiFi connection, but also all jobs need NETWORK, to enjoy the latest feature and more models, high update frequency, share diagnostic report. No need any SD cards, cables & PC. Intuitive view of 4 in 1 data stream to show the vehicle conditions in text or graph to help you to analyze the abnormal parameter easily.
6. LAUNCH Creader Elite OBDII Scanner for GM Vehicles, Full-System Bi-Directional Diagnostic Tool for
- FRE.E TPMS ACTIVATION TOOL FOR GM CARS Just click "Add to Cart ",you will get a FRE-E TPMS activation Tool which works for GM cars.
- Comprehensive Full System Diagnostics Diagnose all vehicle systems (Engine, ABS, SRS, Transmission, and more) on GM models including for Buick, for Chevrolet, for Cadillac, and for GMC. Quickly identify faults and pinpoint issues with ease, ensuring a complete diagnostic solution for your vehicle.
- Powerful Bi-Directional Control for Advanced Testing Take control of your vehicles components with bi-directional functionality. Activate relays, solenoids, and more, enabling you to perform active tests and make real-time adjustmentsperfect for advanced repairs and precise diagnostics.
- ECU Coding & Adaptation for Customization Code your vehicles ECU for system recalibration and performance enhancement. This feature allows you to customize your vehicles settings and adapt modules for optimal performance, making it a must-have for DIY enthusiasts and professional mechanics alike.
- All-In-One Service Reset Functions Keep your vehicle running smoothly with over 100+ service reset functions. Perform oil reset, TPMS, E-P-B, S-A-S, D-P-F, and more with just a few clicks, saving time and money on costly visits to the repair shop.
- Full OBD2 Functions with Real-Time Data Perform complete OBD2 diagnostics, including reading and clearing trouble codes (DTCs), live data streaming in text, graph, and analog formats. View real-time data from multiple sen-sors and get detailed freeze-fra-me data, offering a deeper understanding of your vehicle's health.
- Auto VIN Detection for Effortless Diagnostics Automatically detect your vehicles VIN for quick and accurate identification. No need to manually enter informationget to diagnostics faster and more efficiently, saving valuable time during repairs.
- Life--time Fr--ee Software Updates Enjoy peace of mind with free life-time updates. Get access to the latest software, vehicle coverage, and diagnostic enhancements, ensuring your scanner stays up-to-date with the most recent vehicle models and technologies without extra cost.
7. VDIAGTOOL VD10 OBD2 Scanner Code Reader Car Diagnostic Tool Engine Fault Code Reader for Turn Off
- A MUST-HAVE TOOL FOR DIYERS- VDIAGTOOL VD10 car code reader is an incredibly useful obd scanner for each car owner or hobbyist, even for those with little to no experience when it comes to vehicle mechanics! Using this car diagnostic scanner is extremely easy. All you have to do is attach it to your car OBDII port and you can diagnose car problems in seconds! Read Codes (DTCs); Clear Codes; Live Data; View Freeze Frame; I/M Readiness; Vehicle Information.
- KEEP ENGINE IN GOOD STATUS- VDIAGTOOL check engine code reader brings a fast access to scan, read the car fault code, show its definition on the screen instantly, troubleshooting to find the root causes of problems, erase the engine fault code and turn off the MIL (Malfunction Indicator Light).car code reader
- READ/CLEAR CODES & DTC LOOKUP- No search online & saving your time, this vehicle car code reader retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, pending codes and displays DTC definitions based on the built-in database(more than 3000 codes) on the TFT screen, find out the root causes and clear the codes after fixed.
- LIVE DATA & RETRIEVE FREEZE FRAME- This diagnostic scan tool for accurate diagnosis enables you to retrieve data from vehicle sensors, such as Engine RPM, Intake air temperature, Short/Long term fuel, Misfire data and etc. The freeze frame is stored in the PCM together with the diagnostic trouble code (DTC) related to the fault. VD10 car code reader car scanner can be a valuable & practical diagnostic aid and also greatly help when diagnosing intermittent problems.
- I/M READINESS for THE S-nn-0-g CHECK- OBDII vehicle may not pass the annual inspection unless the required monitors since reset are complete. So you should at least read the readiness monitors and make sure they are ready. This car obd2 scanner diagnostic tool is equipped with I/M readiness function to check the operations of the e-m-issi0n system on OBD2 compliant vehicles, run I/M monitor readiness test, checking if the pass vehicle s-m-0-g inspection.
- EXTENSIVE CAR COMPATIBILITY- This obd2 code readers & scan tools supports all OBDII protocols: CAN, ISO9141, KWP2000, J1850 PWM, J1850 VPW. Compatible with 99% OBDII-Compliant vehicles, post 1996 US-based, post 2006 for EU-based and post 2009 for Asian-based, 12V cars, SUVs, light trucks. Also it can retrieve Vehicle Information such as VIN number, Calibration ID(s), Calibration Verification Nos. (CVNs), which is useful to check whether the ECU matches when you are buying a used car.
- PLUG & PLAY & EASY to USE- VD10 car code reader auto scan tool featured with a clear 2-line display LCD screen - white backlight and contrast adjustment. Plug & play, no need for batteries or a charger, this car diagnostic scanner could get power directly from the OBD2 Data Link Connector in your vehicle.
- 3-YEAR WA_RRANTY & LIFE_TIME FREE UPDATE- You will get 3 years wa_rranty and life_time free update when buying this multi-function VD10 obd2 scanner for car. It can support 6 languages (English, French, German, Spanish, Italian, Russian).
8. OBD2 Scanner Code Reader for Chevy/GMC Full System Diagnostic Scan Tool, Transfer Case ABS SRS EPB
- Full System OBD2 Scanner CGSULIT SC530 full system obd2 scanner is exclusively designed for Chevy(Chevrolet),GMC,Buick,Cadillac brand, etc under GM. Covers all systems of the brand series car diagnostics ( Engine, Transmission, ABS, Airbag, Immobilizer, Fuel Injection Module, Body Module, HVAC, Seat Module, Theft Deterrent,etc.
- 30+ Special Functions & Maintenance Service This obd2 scanner diagnostic tool with special functions suitable for almost can be compatible with GM after 1996. Helps users to access the vehicle systems to reset system status after repaired. Such as Battery Reset, Injector Coding, TPMS, SRS, EPB, Brake Deactivation, SAS Calibration, DPF Regeneration, BCM/SIR Setup, TPS/TBA ,steering angle calibration.
- Bi-Directional And Active TestThis obd2 scanner diagnostic tool support active test. No matter whether you are a DIY or a professional mechanic. It can initiate bi-directional control tests. For example,use diagnostic scan tool to replace components like battery and sensors, to relearn steering angle position, throttle body/position, crankshaft position sensor, transmission relearn etc. Know exactly what's the issue with your vehicle.
- No More Extra Fee & Lifetime Use: SC530 car scanner focuses on a specific brand series. You never need to pay money at a shop again and again. Also, some diagnostic tools charge a monthly fee for subscribing, but SC530 says NO! Once active and all reset & maintenance services are lifetime freee. You can fix issues by yourself, like battery registration, engine reset, oil reset, electronic parking brake reset; throttle position reset, SAS reset, DPF reset, TPS reset, ABS bleeding, etc.
- Car Reader Diagnostic for All CarsCGSULIT SC530 code reader is a powerful handy OBD2 full system scan tool, including checking all system working status, reading, clearing codes, and turning off MIL lights. This OBD2 function except for Chevy, GMC, Buick, etc under gm but for all cars. Plug and play, fast scanning speed, lookup library. If you are not so good at mechanics, this car scanner is the best choice. Cause it can provide you with an OE level diagnosis and at an affordable price.
- Two Warm Tips: 1 SC530 obd2 scanner diagnostic tool can be used directly out of the box. 2If you need to install other car brands, please contact our customer service to buy. It support 100+ vehicles and is continues updating. If you have problems about using just tell us.
- Brand SupportAll our products will come with our 30-day no-objection money-back guarantee policy and 12-month replacement warranty, answered by 7*24 hours technical service. If you have questions about our products, please contact us and we will reply within 24 hours.
9. ANCEL AD410 Enhanced OBD2 Scanner Vehicle Code Reader Check Engine Light Fault Reader Diagnostic
- WIDE COMPATIBILITY - Recommended by YouTube star Scotty Kilmer on his channel. Works on most vehicles sold in the U.S. with a model year of 1996 or newer; A code reader for cars and trucks that supports all OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN; Displays in English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese. This obd2 scanner does not require a battery or charger as the unit is powered directly from the OBDII data link connector in the vehicle.
- CRITICAL FUNCTIONALITY - A car code reader that quickly reads / clears stored emissions-related codes, pending codes, and displays code definitions. With 42,000+ built-in DTC lookups, this OBD2 scanner can quickly determine the cause of faults and potential problems before you spend a lot of money, and you don't need to Google what each fault code means. Turns off the MIL, helps reset the monitor before you take the car to smog, and lets you know what's going on before you take the car in for repairs. NOTE: The fault code can be cleared after the problem is fixed
- ENHANCED OBDII DIAGNOSTICS - A universal obd2 scanner diagnostic tool supports the testing of O2 sensors and EVAP (Evaporation Control) systems. The AD410 vehicle code scanner can be used to initiate a leak test of a vehicle's EVAP system by monitoring the integrity of the fuel tank system. The O2 sensor test is used to monitor and adjust the air/fuel mixture, which can identify and correct problems related to fuel efficiency and vehicle emissions.
- QVGA DISPLAY & NEW UI - The AD410 car code reader is a greatly improved upgrade from simpler diagnostic tools. The car scanner diagnostic tool features a 2. 4" TFT true color display (262K) LCD for clear viewing of test results. With the clear design UI, users can easily access setup, OBDII diagnostics, I/M readiness and DTC search and check. No need to read the manual to know what to do, even for a beginner.
- DIAGNOSTIC REPORTS & UPDATE - The Review & Print option allows you to save or print diagnostic reports as needed. The ANCEL brand offers life-time free software updates for this unit to fix the latest bugs or add new parameters. Simply download the software from the ANCEL website and then follow the on-screen instructions to install it.
10. OBD2 Scanner Diagnostic Tool, Check Engine Code Reader OBD2 Scanner with Reset, Mode 6, Mode 8 & I/M
- Professional OBD2 Scanner Diagnostic Tool with Powerful Functions:OBD2 scanner code reader feature built-in 35901 OBD2 DTCs lookup library, As professional car scanner, the obd2 scanner diagnostic tool will help you to determine the cause of the engine light,read I/M readiness, Read & clear codes, turn off engine light or MIL, view freeze frame, retrieve vehicle VIN, battery voltage test, live data stream, onboard monitoring mode, and perform component testing etc
- OBD2 Scanner Built-in 35,901 DTC Lookup: The OBD2 scanner car code reader built-in 35,901 DTCs, the old model obd2 scanner diagnostic tool usually only have 3,000-10,000.the OBD2 Scanner of DTC library covers tens of thousands detailed fault code definitions that will quickly determine the fault cause and catch potential problems before they cost you a fortune. Besides, you don't need to google the meaning of each fault code.If you are looking to replace or upgrade an existing car code reader, this code reader is an excellent option.
- OBD2 Diagnostic Scanner Tool Compatible with 98% Vehicles And Multiple Languages: The code reader OBD2 scanner for cars is designed to be compatible with most vehicles manufactured after 1996 US-Based, 2000 EU-Based and Asian cars. If your car has a 16-pin OBD2 port and was produced within the specified timeline, it should be compatible with the code reader and the obd2 scanner diagnostic tool support for 10 languages: English, French, Spanish, German, Chinese, Russian, Italian, Japanese, Portuguese, Dutch, which make it easy to use for people from different countries.
- Car Scanner Diagnostic offers Convenient Data PrintingThe code reader for car offers advanced features such as live data and DTC replay combined with printing function, Connect the OBD2 scanner to your computer to easily print fault data, empowering you to prevent random charges at car repair shops and save valuable time and money. Additionally, WEJOWE offer lifetime free upgrades for the device, ensuring you always have access to the latest features and improvements.
- Super Compact & What You Will Get: The OBD2 scanner tool is easy to carrying and storage,With each package, you will receive a canvas storage bag for convenient storage and a Type-C cable to connect to your computer.And Car Scanner Diagnostic offers Convenient Data PrintingThe code reader for car offers advanced features such as live data and DTC replay combined with printing function, Connect the OBD2 scanner to your computer to easily print fault data, empowering you to prevent random charges at car repair shops and save valuable time and money.
Peter
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