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Terrain

You do have front struts and rear shocks on your GMC Terrain. If you are having any problems with your suspension, or need replacement struts (https://www.yourmechanic.com/services/strut-assembly-replacement), a certified mechanic from YourMechanic can come to your home or office to service...

A reduced power light usually indicates a fairly serious problem with the throttle system. When this light illuminates the vehicle will often go into a “safe mode”, which will severely limit the speed of the car and in some cases...

This is an electrical problem and is caused by either a short circuit, a fault in the key sense feature (module) or, if equipped, could be caused by faults in the remote starter circuit which operates wirelessly. If you have...

Code P219A relates to a fuel/ai ration imbalance, which may be caused by any number of things such as faulty fuel injectors (https://www.yourmechanic.com/estimates/fuel-injector-replacement-service), low fuel pressure, a faulty EGR valve (https://www.yourmechanic.com/services/exhaust-gas-recirculation-egr-valve-replacement), a faulty EVAP canister (https://www.yourmechanic.com/services/evaporative-emission-control-canister-replacement) or intake leaks, creating...

Code P0341 relates to the camshaft position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) not correlating to the position of the crankshaft position sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement), which works in conjunction with the camshaft sensor to maintain proper ignition timing. Code P0017 relates to the crankshaft position...

The high mileage oil brand, and the specific viscosity rating (5W-30), that your husband bought for you is perfectly acceptable and you needn't worry at all. High mileage oil simply claims to have "extra" engine oil seal conditioners and perhaps...

To determine if an easy resolution exists, please refer to YourMechanic's DIY stuck key remedies page (https://www.yourmechanic.com/article/how-to-diagnose-an-ignition-key-that-won-t-turn). If none of the many suggestions on that page resolve your issue, it will be most efficient if a certified mechanic travels right...

The protocol depends on the codes that have set, which are quite varied. Problems with these systems on your particular model and year can stem from blocked oil passages to failed solenoids (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-variable-valve-timing-vvt-solenoid) to wiring harness issues, not to mention...

When a fault/error in the transmission or engine triggers the Reduced Engine Power Warning Light, the vehicle will experience an extreme loss of power and performance and vehicles may not be able to exceed speeds greater than 20 miles per...

Hi there. Most of the time, reduced engine power is caused by a restriction of fuel, or the throttle body's inability to efficiently mix air and fuel. This could be caused by a failing mass air flow sensor, EGR valve...

Transmission issues will often give you small signs that a trip to the shop is needed. The warning signs can be subtle shifting problems like a slightly delayed or harsh shift, sometimes even a delay before the transmission goes into...

Hello! A malfunctioning air conditioning system can be caused by several scenarios. A simple fuse can be the culprit, as well as a broken drive belt. I don't have much information from you, so I will recommend you have a...

To determine whether you have gotten reasonable service life out of the tires requires data on: 1) elapsed mileage; 2) the tire's treadwear rating; 3) operating conditions (inflation, alignment, speed, and ambient temperature); and 4) the possibility of product defect...

P0016 (https://www.yourmechanic.com/article/p0016-obd-ii-trouble-code-camshaft-position-a-camshaft-position-correlation-bank-1-by-jay-safford) pertains to the intake camshaft (i.e., position "A"). If that code has set, apart from a sensor fault, there are quite a few other potential causes of the code, including: incorrect camshaft timing due to the timing chain...

You may have already fixed the problem but the computer has already stored the failure code and will need to have the computer memory cleared to turn off the light. Then drive it again to see if light returns. Please...

There are many potential causes for your concern. However, there are a couple common problems with your model vehicle that come to mind. First, this vehicle is known for having problems with the variable valve timing (VVT) system. The VVT...

If the car is still overheating, even after filling the coolant system (and making sure there is no trapped air, which itself will cause overheating) just request an overheating diagnostic (https://www.yourmechanic.com/services/car-is-overheating-inspection) during which a certified mechanic will determine which of...

This warning typically comes on when the system detects a problem with one or more of the tire pressure sensors. It is likely one or more of the sensors are putting out a weak signal and the vehicle cannot detect...

The reduced power is due to a major sensor or actuator failure in the engine, transmission or other vehicle systems that the on board computer system sees as a major failure and limits the throttle and speed of the vehicle....

Hi there - while a big drop in temperatures shouldn't cause a service light per se, cold temperatures DO have an effect on electrical connections (https://www.yourmechanic.com/question/experiencing-electrical-problems-in-cold-weather), and a connection problem may be the case here. You need the actual problem...