If your Hummer H1’s key fob is not working, the most common reason is a dead battery. Followed by water damage or fob failure. Below, we’ve listed everything you need to do to get your vehicle’s fob working again. A dead battery is the most common reason a Hummer H1’s key fob fails. Table of … Read more
If you’re filling your vehicle up regularly and still getting crummy mileage, there are a few things that could be to blame. In this post, we’ll explore some of the most common reasons your Hummer H1 is getting bad gas mileage. Before diving in, it’s important to note whether or not your H1’s check engine … Read more
If your Hummer H1 has metal shavings in the oil, it almost always indicates engine damage, but it’s not always easy to tell what is causing the issue. This article will help you figure out what’s going on with your vehicle. Metal shavings accompanied by a knocking sound typically indicate your H1 has spun a … Read more
When your Hummer H1 is in Park, its engine RPM level (revolutions per minute) should stay relatively even. If it doesn’t, there’s likely something wrong with your engine. If your vehicle’s check engine light is on, we’ve provided the most common causes of RPMs going up and down while in Park and the common codes … Read more
Shocks and struts typically don’t last for the lifetime of a vehicle, If your Hummer H1 is experiencing poor handling, excessive wear on tires and suspension components, or a jarring noise, it likely has bad shocks or struts. If your H1 is experiencing any steering problems, it’s vital to check your vehicle out immediately, as … Read more
The TPMS light indicates that your Hummer H1’s tire pressure is above or below the minimum threshold set by the manufacturer. The tire pressure monitoring system (TPMS) light is the most common warning light on a modern vehicle. If you have a TPMS warning light, your vehicle’s tire pressure must be checked. If your Hummer … Read more
P1174 and P1175 are GM-specific DTCs (Diagnostic Trouble Codes). They indicate fuel bank trim issues on bank 1 and bank 2 of your Hummer H1. Hummer H1 P1174 + P1175 Quick Info GM P1174 + P1175 Definition Fuel Trim Cylinder Balance (Bank 1 or Bank 2) Symptoms Mild misfire, MIL light Common Causes Bad O2 … Read more
Does your Hummer H1 have lights that come on and a clicking noise when you turn the key, but it won’t start? This article is meant to help you diagnose this exact scenario. The good news is that this is a fairly common no-start situation and is usually pretty easy to repair. A weak battery … Read more
If you find yourself in a situation where only one of Hummer H1’s windshield wipers is working, there’s a lot you can do to get it fixed at home. We know that when only one windshield wiper is working, your H1’s windshield wiper motor is still functional. So we don’t need to check the windshield … Read more
A functioning horn is one of a vehicle’s most critical safety features. If your Hummer H1’s horn isn’t working, there are a few potential causes. We’ll cover each of them, starting with the easiest and most likely issues and working from there. A test light can make diagnosing a horn that isn’t working much easier. … Read more