Why choose the RAC for an ECU repair?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running. We'll give you results you can rely on at a price you can afford.

ECU Repairs for Lexus vehicles requires specialist tools and workshop facilities, so this work is completed through the RAC Approved Garage Network. Our approved garages service models such as NX, RX, UX, ES, and IS, following manufacturer procedures, certified equipment standards and rigorous quality checks. You receive transparent pricing, progress updates and RAC‑backed guarantees.

Close up of an RAC Mobile Mechanic underneath a car
A mechanic standing inside a garage

Book an ECU repair

The Engine Control Unit (ECU) is the brain of your vehicle and works to keep it running smoothly. If it's acting up, it can mean poor performance, increased fuel consumption, or trouble starting your car.

Any work done will meet the high standards set by the RAC.
We’re friendly, straightforward and jargon-free
A mechanic inspecting the underside of a vehicle.

Book a diagnostic

A mechanic will check your car for faults and talk you through any repairs you might need. There are various ways to check for faults, which could include a physical examination or plugging in to check your car’s onboard engine management system.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors

And it’s not just ECU repairs that we do for Lexus

RAC Approved Garages offer MOTs and services. Our professional mechanics have the expertise and experience to make sure your vehicle is operating safely and efficiently – results you can rely on at a price you can afford.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

Sparrowhawk Motors IV LTD

4.4/5

From a convenient location in West London Sparrowhawk motors Garage has been offering a full range of garage services for over 20 years to customers from all over London. Whatever work your car needs, the team of qualified mechanics will carry out great work for a reasonable cost. In addition, we can assure your expectations will be exceeded whatever your requirements may be. If you are looking for car repairs or service in the London area, then Sparrowhawk motors can meet your needs at a competitive price. The convenient location makes it ideal for the Londoners to find us.
Arch 15, Munster Road, Chelsea, SW64RY

Bismillah Garage Services Ltd

4.2/5

Bismillah Garage Services is a family business, well established and respected MOT & car service garage in Luton also supplying replacement automotive parts such as exhausts, brakes spark plugs, oil filters and tyres. We undertake car servicing and repairs that including computer diagnostics, brakes, clutches etc. Regular car servicing can extend the life of a vehicle considerably and can save money. We focus on providing an exceptional garage service with competitive pricing. We have been serving customers in the Luton for 15 years. We have an up-to-date, fully equipped test centre, with all the facilities to service and repair your vehicles. We have built a solid reputation in Luton for delivering high quality garage services tailor made to meet the needs of our clients. Much of our business comes from word of mouth and satisfied repeat customers.
2A Tudor Road, Luton, LU3 1RN

Red Depot Autocare

4.6/5

We’re based in Aylesbury, our friendly local garage is built on the core values of great customer service,dependable workmanship and a clear way of automotive excellence at exceptionally affordable prices. Because Red Depot Autocare works as an independent garage, we can provide very cost-effective car repairs in Aylesbury and surrounding areas at a 50% cheaper rate than main dealers in and around the Aylesbury area. Red Depot Autocare is a strongly established service centre which has been around since 2014 and has 5 star reviews across the net on Google, Facebook and various other platforms on the net. We’re thrilled to offer our clients an extensive support range including MOT Testing, servicing, all kinds of car repairs and used cars for sale. At Red Depot Autocare, we always aim to deliver quality workmanship using the most recent trade practices to ensure your car, van or truck is always fully maintained and in safe working order. Our experienced team of technicians undergo advanced training with the newest trade technology to bring you a complete assortment of engine management and diagnostic solutions alongside reputable MOT testing, vehicle servicing and recommendations on used cars to buy.
Unit 7A, Smeaton Close, Aylesbury, HP198SU

Auto Solutions & Parts Limited

4.7/5

1) ENGINE REBUILDING ( RECONDITIONING ) 2) DSG Gearbox Repair and Replacements and most of the makes Automatic Transmission services 3) All mechanical work including MOT, Servicing, Brake Discs & Brake Pads, DPF Regen, Welding work so you do not always have to buy new parts if your old parts are repairable, etc. 4) New & Part worn Tyres on very good prices Special offer on selected tyre sizes on new ones 5) Air condition gas refill for new & old cars The reason to use us is that once you come to us you do not need to go to different garages for your vehicle repairs as we do everything under one roof
231A, Montgomery Street, Sparkbrook, Birmingham, B111DS

ZS Motors London Ltd

5.0/5

At ZS Motors London Ltd, we pride ourselves on delivering trusted, high-quality automotive services across Rainham (Essex) and east London. With years of experience in the motor trade, we specialise in MOT, engine rebuilds, servicing, diagnostics, and repairs for a wide range of makes and models. Our mission is simple to provide honest advice, reliable workmanship, and excellent customer service. Whether you’re buying your next car, maintaining your current one, or in need of emergency repairs, our expert team ensures your vehicle is always in safe hands. Based in Rainham (Essex) East London, we have built our reputation on transparency, integrity, and a commitment to keeping our customers on the road with confidence.
Unit 3 And 4 Blackwater Close, Fairview Industrial Park, Rainham, RM138UA

Frequently asked questions about ECU repairs

Yes, a damaged ECU can often be repaired. Whether it can be depends on the amount of damage and how easy it is to find replacement parts.

It's usually best to leave ECU repairs to the experts. This is because as they require special tools and knowledge of car electronics.

Look out for a check engine light being on, the engine stalling or misfiring, poor fuel economy and difficulty starting the car.

It can take anywhere from a few hours to a couple of days. This depends on the issue and how available the parts are.

ECU repairs may be covered if the damage is caused by something that is insurable, like an accident. Talk to your insurance provider to find out more.

There is no set interval for ECU checks, but it’s a good idea to have it looked at, if you see symptoms.