Nissan Murano Won’t Start And The Brakes Are Locked: Solutions For The Issues

This is a frustrating issue that is tormenting some Nissan Murano owners – when they plan on starting their vehicles, the brake remains locked in place and prevents the car from turning on. This brake defect leaves Murano drivers stranded and scrambling to find a solution.

Until the Nissan company gives an official fix to this issue, owners who have this issue are searching forums and video tips for DIY solutions.

I get it, so this article will examine the stuck brake problems in detail, explain the complicated repairs, and provide some tips to regain the function of your disabled Murano.

Covering The Possible Causes Of The Issue

Faulty brake shift interlock mechanism

• The function of this part is to prevent the shifter from moving out of parking mode unless the brake pedal is down. 

• A malfunction can cause it to get stuck by adjusting the brake, even when the pedal is released.

Debris buildup in brake shift interlock

• Contaminants like dirt, rocks, or excess grease could have made their way into the interlock over time. 

• This can physically obstruct the components from disengaging correctly. 

Damaged or disconnected interlock control module

• The brake shift interlock module is an electrical control unit that monitors input signals from the brake pedal, key position, and gear shifter. 

• If it or its wiring is out of shape, it may send incorrect brake signals by preventing the vehicle from starting.

Brake pedal position sensor issues

• This sensor monitors the pedal position and tells the interlock when the brakes are pressed or released. 

• If its contacts get dirty or the unit fails, false brake-on readings will occur. 

Low brake fluid level

• Insufficient fluid pressure will keep calipers slightly engaged by activating the interlock.

Sticky brake caliper pistons

• Brake pistons that are slow to retract will lead to a partially stuck brake pedal. 

• This tricks the interlock into functioning that the brakes are still active. 

Problems with brake pedal assembly

• Issues like bent components, disconnected return springs, or worn bushings can prevent the brake pedal from fully releasing as needed to disengage the interlock. 

Solutions That You Can Take To Overcome These Issues

• Remove contaminants like dirt or old grease and apply fresh silicone lubricant to the brake shifter interlock to move freely.

• Check sensor electrical connectors for corrosion and verify that the rubber grommets are intact. 

• Inspect the brake lines, calipers, and wheel cylinders for signs of fluid leaks. If you find any, add the suitable fluid type to restore the reservoir mark level. 

• Ensure all linkage components are correctly on the perfect spec and the springs or bushings aren’t out of shape.

• With the battery disconnected, depress the brake pedal multiple times to discharge any residual hydraulic pressure and then reconnect the battery to reset the electronic modules.

FAQs About Nissan Murano Won’t Start And The Brakes Are Locked

Q: How do I start the Murano if the brakes won’t release?

A: Locate and press the brake shift interlock manual override button by the shifter. This should allow shifting out of Park to start. You can also try rocking the vehicle and releasing the parking brake.

Q: Is it safe to drive if the interlock is malfunctioning?

A: It is generally not recommended to drive with a faulty interlock system. 

Q: Do I need to tow the Murano to the dealer if I come across this issue?

A: In some cases, the vehicle may need to be towed if it is entirely unable to start and shift gears. 

Q: How much will it cost to get the brakes unlocked?

A: Repair costs may depend on the specific part that failed. But I can mention at least a few hundred dollars you have to spend for components and labor. Before taking the vehicle to a garage, check for the warranty period. If covered under warranty, it would be free.